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Merete Tangstad

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Merete Tangstad

Professor
Department of Materials Science and Engineering

merete.tangstad@ntnu.no
+4797180255 Berg, E-307, Gløshaugen, Alfred Getz vei 2
About Publications Teaching Outreach

About

Ferroalloy-, silicon- and solar grade silicon- production

Merete Tangstad was educated at NTH in 1989 and was also awarded her PhD at this institution. She worked in Elkem and Eramet in the period of 1990-2004 with production of ferromanganese alloys. Since 2004 she has been a professor at NTNU and her main fields are ferralloy production, silicon production and solar grade silicon processes.

Publications

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2025

  • Polkowski, Wojciech; Lo Biundo, Paolo Lai Zhong; Jiao, Jianmeng; Wallin, Bogg Maria Elisabeth; Kalicki, Bartosz; Ciftci, Jakub. (2025) Micro-encapsulation of Si-Fe ultra-high temperature phase change material: Fabrication and basic energy storage properties. Results in Engineering (RINENG)
    Academic article
  • Ernst, M.S.; Tangstad, Merete; Beukes, J.P.; Ringdalen, Eli; Du Preez, Preez. (2025) The effect of hydrogen pre-reduction on the carbon-reducibility of pelletised UG2 chromite. Minerals Engineering
    Academic article
  • Rimal, Vishal; Tangstad, Merete. (2025) Kinetics of Manganese Reduction Comparing Synthetic Slags and Ores for Ferromanganese Production. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Ringdalen, Eli. (2025) Decarbonization Ferroalloy Production Using Biocarbon. Minerals
    Academic literature review
  • Han, Yu; Bernasowski, Mikolaj; Ślęzak, Marta; Migas, Piotr; Mohanty, Sunati; Cheisson, Thibault. (2025) A Sustainable Way to Produce Mn-Sinter with Charcoal. Journal of Sustainable Metallurgy
    Academic article
  • Lo Biundo, Paolo Lai Zhong; Jiao, Jianmeng; Wallin, Bogg Maria Elisabeth; Polkowska, Adelajda; Nowak, Rafal; Bruzda, Grzegorz. (2025) Thermophysical properties of eutectic Fe-57Si ultra-high-temperature metallic phase change material. Journal of Thermal Analysis and Calorimetry
    Academic article

2024

  • Tangstad, Merete; Solberg, Emma; Marius, Larsen; Kaffash, Hamideh. (2024) CO2 Reactivity with Potassium and Strength of Densified Charcoal. Advancement in Mining and Mineral Engineering
    Academic article
  • Tangstad, Merete; Rong, Harry Morten; Valderhaug, Aasgeir; Andersen, Birger; Page, Ingrid Gamst. (2024) Proceedings of the Silicon for the Chemical and Solar Industry XVII (SCSI-2024). Elsevier Social Science Research Network (SSRN) (2)
    Academic anthology/Conference proceedings
  • Folstad, Marit Buhaug; Einarsrud, Kristian Etienne; Tangstad, Merete. (2024) Dissolution of CaO in SiO2-CaO-Al2O3 Slag in Si Production. Metals
    Academic article
  • Haraldsson, Hakon Valur; Traustason, Halldór; Tesfahunegn, Yonatan A.; Tangstad, Merete; Sævarsdottir, Gudrun. (2024) Modeling and Comparison Study of Industrial AC-Arcs. Metallurgical and Materials Transactions B
    Academic article
  • Han, Yu; Tangstad, Merete. (2024) Metallurgical Properties of Biocarbon in Ferroalloy Production─A Review. ACS Omega
    Academic literature review
  • Kaam, Tristan Petrus Maria van; du Preez, Stephanus P.; Tangstad, Merete; Lobo, Stephen Ceasar. (2024) Hydrogen reduction of ilmenite: effects of oxidation. Canadian metallurgical quarterly
    Academic article
  • Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2024) Studying the Structure and Viscosity of MnO-SiO<inf>2</inf>-CaO-Al<inf>2</inf>O<inf>3</inf>-MgO Slag System. Materials
    Academic article
  • Ernst, Marna; Tangstad, Merete; Du Preez, Stephan. (2024) Pre-reduction of Nchwaning manganese ore in CO/CO2, H2/H2O, and H2 atmospheres. Minerals Engineering
    Academic article
  • Rimal, Vishal; Tangstad, Merete. (2024) Flow investigation of multiphase manganese slags. The Australasian Institute of Mining and Metallurgy
    Academic chapter/article/Conference paper

2023

  • Tangstad, Merete; Schanche, Trygve Lindahl; De Preez, Faan. (2023) Use of H2 in Mn-Ferroalloy Production. Springer
    Academic chapter/article/Conference paper
  • Kristiansen, Save; Tangstad, Merete. (2023) Dissolution Rate and Wettability of SiO2-CaO-Al2O3 Slags on Quartz. NTNU
    Masters thesis
  • Forberg, Sigmund; Tangstad, Merete. (2023) Reduction of SiMn slags - Comparing Coke and Charcoal as Reductants. NTNU
    Masters thesis
  • Folstad, Marit Buhaug; Yu, Han; Wang, Haijuan; Tangstad, Merete. (2023) Disintegration of Six Different Quartz Types during Heating to 1600 °C. Minerals
    Academic article
  • Hoover, Haley Iris; Fromreide, Mads; Sævarsdottir, Gudrun Arnbjörg; Tangstad, Merete. (2023) Bulk Resistivity of Materials in the Si/FeSi Furnace. Processes
    Academic article
  • du Preez, Stephanus Petrus; Kaam, Tristan Petrus Maria van; Ringdalen, Eli; Tangstad, Merete; Morita, Kazuki; Bessarabov, Dmitri G.. (2023) An Overview of Currently Applied Ferrochrome Production Processes and Their Waste Management Practices. Minerals
    Academic literature review
  • Larssen, Trine Asklund; Tangstad, Merete. (2023) Effect of Raw Materials on Temperature Development during Prereduction of Comilog and Nchwaning Manganese Ores. Minerals
    Academic article
  • Jiao, Jianmeng; Jayakumari, Sethulakshmy; Wallin, Bogg Maria Elisabeth; Tangstad, Merete. (2023) Graphite crucible interaction with Fe–Si–B phase change material in pilot-scale experiments. High Temperature Materials and Processes
    Academic article
  • Davies, Emlyn John; Tangstad, Merete; Schanche, Trygve Lindahl; du Preez, Stephanus Petrus. (2023) Pre-reduction of United Manganese of Kalahari Ore in CO/CO2, H2/H2O, and H2 Atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Folstad, Marit Buhaug; Jusnes, Karin Fjeldstad; Tangstad, Merete. (2023) Investigation of slag and condensate from the charge top in a FeSi75 furnace. Springer
    Academic chapter/article/Conference paper
  • Folstad, Marit Buhaug; Tangstad, Merete; Ringdalen, Eli; Einarsrud, Kristian Etienne. (2023) Slag and its effect on Si and FeSi production. NTNU
    Doctoral dissertation

2022

  • Bublik, Sergey; Tangstad, Merete; Einarsrud, Kristian Etienne. (2022) Interfacial Behaviour in Ferroalloys: The Influence of FeMn Slag Composition. Metallurgical and Materials Transactions B
    Academic article
  • Jiao, Jian Meng; Safarian, Jafar; Tangstad, Merete. (2022) The Use of Fe-26Si-9B Alloy as Phase Change Material in Si<inf>3</inf>N<inf>4</inf> Container. Crystals
    Academic article
  • Tangstad, Merete; Olsen, Jan Erik; Ringdalen, Eli; Ksiazek, Michal Tomasz; Reynolds, Quinn; Steenkamp, Joalet. (2022) Conceptual Tapping Model of Mn-Ferroalloy Furnaces. JOM
    Academic article
  • Hoover, Haley; Andersen, Vegar; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Excavation of 160kW Pilot Scale Si furnace. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Nordhus, Astrid; Ringdalen, Eli; Tangstad, Merete. (2022) Modelling Gas Flow in Furnaces for Si Production. NTNU
    Masters thesis
  • Bauman, Jesper; Tangstad, Merete. (2022) Wetting properties and interactions between SiO2-CaO-Al2O3 slag and SiC. NTNU
    Masters thesis
  • Solhaug, Emma; Tangstad, Merete. (2022) Methods for K-impregnation of carbon materials and their effect on the CO2 reactivity. NTNU
    Masters thesis
  • Mukono, Tichaona; Reiersen, Henrik Stensdal; Schanche, Trygve Lindahl; Wallin, Maria; Tangstad, Merete. (2022) Prereduction Behavior of Manganese Ores With Solid Carbon and in CO/CO<inf>2</inf> Gas Atmosphere. Metallurgical and Materials Transactions B
    Academic article
  • Mukono, Tichaona; Wallin, Maria; Tangstad, Merete. (2022) Slag Reduction and Viscosities Interaction in Ferromanganese Process. The Minerals, Metals & Materials Series
    Academic article
  • Hoover, Haley; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Electrical Resistivity of Transformed Carbon Materials in the Silicon Furnace. Springer
    Academic chapter/article/Conference paper
  • da Luz Pascoal, Aline; Aristides Victor Rossoni, Hygor; Kaffash, Hamideh; Tangstad, Merete; Bicalho Henriques, Andréia. (2022) Study of the Physical Behaviour and the Carbothermal Reduction of Self-Reducing Briquettes Developed with Iron Ore Fines, Charcoal and Silica Fume Residues. Sustainability
    Academic article
  • Olsen, Jan Erik; Ksiazek, Michal Tomasz; Tangstad, Merete. (2022) CFD Study on Continuous Tapping of Silicon. The Minerals, Metals & Materials Series
    Academic article
  • Tangstad, Merete; Larsen, Marius Hansen. (2022) Densification of charcoal by thermal decomposition of methane. NTNU
    Masters thesis
  • Surup, Gerrit Ralf; Kaffash, Hamideh; Ma, Yan; Trubetskaya, Anna; Pettersen, Johan Berg; Tangstad, Merete. (2022) Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production. Energies
    Academic article
  • Davies, Jamey; Tangstad, Merete; Ringdalen, Eli; Beukes, Johan Paul; Bessarabov, Dmitri; du Preez, Stephanus Petrus. (2022) The Effect of Pre-Oxidation on the Reducibility of Chromite Using Hydrogen: A Preliminary Study. Minerals
    Academic article
  • Kaffash, Hamideh; Tangstad, Merete. (2022) CO2 Gasification of Densified Biomass: The Influence of K on Reaction Rate. JOM
    Academic article
  • Davies, Jamey; Paktunc, Dogan; Ramos-Hernandez, José Juan; Tangstad, Merete; Ringdalen, Eli; Beukes, Johan P.. (2022) The use of hydrogen as a potential reductant in the chromite smelting industry. Minerals
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete. (2022) Effect of Moisture, Hydrogen, and Water–Gas Shift Reaction on the Prereduction Behavior of Comilog and Nchwaning Manganese Ores. Metallurgical and Materials Transactions B
    Academic article
  • Mukono, Tichaona; Wallin, Maria; Tangstad, Merete. (2022) Phase Distribution During Slag Formation in Mn Ferroalloy Production. Metallurgical and Materials Transactions B
    Academic article
  • Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2022) A Raman-Structure Model for the Viscosity of SiO2- CaO-Al2O3 System. Metallurgical and Materials Transactions B
    Academic article

2021

  • Schanche, Trygve Lindahl; Tangstad, Merete. (2021) Isothermal Reduction of Nchwaning Manganese Ore in CO/CO2/H2 Atmospheres. SSRN Electronic Journal
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Sævarsdottir, Gudrun. (2021) The Effect of Electrode Movements on Electrical Characteristics of a Submerged Arc Furnace. JOM
    Academic article
  • Mukono, Tichaona; Gjøvik, Jonas Einan; Gaertner, Heiko; Wallin, Maria; Ringdalen, Eli; Tangstad, Merete. (2021) Extent of Ore Prereduction in Pilot-scale Production of High Carbon Ferromanganese. SSRN Electronic Journal
    Academic article
  • Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne. (2021) Interfacial Behaviour in Ferroalloys: The Influence of Sulfur in FeMn and SiMn Systems. Metallurgical and Materials Transactions B
    Academic article
  • SOLHAUG, Emma; Tangstad, Merete. (2021) Densified biocarbon and the effect of potassium. NTNU
    Report
  • Aarnæs, Trygve Storm; Tangstad, Merete; Ringdalen, Eli. (2021) SiC formation and SiO reactivity of methane at high temperatures. Materials Chemistry and Physics
    Academic article
  • Canaguier, Vincent Yves; Tangstad, Merete. (2021) In situ observation of the carbothermic reduction and foaming of slags in silicomanganese production. Processes
    Academic article
  • Jiao, Jianmeng; Tang, Kai; Safarian, Jafar; Grorud, Bettina; Sellevoll, Kathrine; Tangstad, Merete. (2021) High temperature interaction between Si–B alloys and Si3N4. Ceramics International
    Academic article
  • Larssen, Trine Asklund; Senk, Dieter Georg; Tangstad, Merete. (2021) Reaction Rate Analysis of Manganese Ore Prereduction in CO-CO2 Atmosphere. Metallurgical and Materials Transactions B
    Academic article
  • Bao, Sarina; Tangstad, Merete; Tang, Kai; Einarsrud, Kristian Etienne; Syvertsen, Martin; Onsøien, Morten Ingar. (2021) Investigation of Two Immiscible Liquids Wetting at Elevated Temperature: Interaction Between Liquid FeMn Alloy and Liquid Slag. Metallurgical and Materials Transactions B
    Academic article
  • Ramos, D.C.; Carneiro, A.C.O.; Tangstad, Merete; Pereira, B.L.C.; Saadieh, Raghed; Oliveira, A.C.. (2021) Reactivity assessment of charcoal for use in silicon production. European Journal of Wood and Wood Products
    Academic article
  • Folstad, Marit Buhaug; Ringdalen, Eli; Tveit, Halvard; Tangstad, Merete. (2021) Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production. Metallurgical and Materials Transactions B
    Academic article
  • Goso, Xolisa; Petersen, Jochen; Tangstad, Merete; Safarian, Jafar. (2021) Beneficiation of fluxed titaniferous slag to a marketable titania product using the modified upgraded slag process. Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy
    Academic article
  • Tangstad, Merete; Bublik, Sergey; Haghdani, Shokouh; Einarsrud, Kristian Etienne; Tang, Kai. (2021) Slag Properties in the Primary Production Process of Mn-Ferroalloys. Metallurgical and Materials Transactions B
    Academic literature review
  • Schanche, Trygve Lindahl; Tangstad, Merete. (2021) Prereduction of nchwaning ore in CO/CO<inf>2</inf>/H<inf>2</inf> gas mixtures. Minerals
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete. (2021) Off-gas characteristics for varying conditions in the prereduction zone of a ferromanganese furnace – a basis for energy recovery. Social Science Research Network (SSRN)
    Academic article
  • Sindland, Caroline; Tangstad, Merete. (2021) Production Rate of SiO Gas from Industrial Quartz and Silicon. Metallurgical and Materials Transactions B
    Academic article
  • Surup, Gerrit Ralf; Trubetskaya, Anna; Tangstad, Merete. (2021) Life cycle assessment of renewable reductants in the ferromanganese alloy production: A review. Processes
    Academic literature review
  • He, Jiali; Jusnes, Karin Fjeldstad; Tangstad, Merete. (2021) Phase transformation in quartz at elevated temperatures. Aspects in Mining & Mineral Science (AMMS)
    Article in business/trade/industry journal
  • Kaffash, Hamideh; Surup, Gerrit Ralf; Tangstad, Merete. (2021) Densification of Biocarbon and Its Effect on CO2 Reactivity . Processes
    Academic article
  • Glastonbury, Ralph; Beukes, Paul; van Zyl, Pieter Gideon; Tangstad, Merete; Ringdalen, Eli; Dall, Douglas. (2021) Characterisation of a real-world Søderberg electrode. Metals
    Academic article

2020

  • Jiao, Jian Meng; Grorud, Bettina; Safarian, Jafar; Tangstad, Merete. (2020) The Use of Si-B Alloys in Thermal Energy Storage System. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Li, Xiang; Tang, Kai; Tangstad, Merete. (2020) Reduction and Dissolution Behaviour of Manganese Slag in the Ferromanganese Process. Minerals
    Academic article
  • Canaguier, Vincent Yves; Tangstad, Merete. (2020) Kinetics of Slag Reduction in Silicomanganese Production. Metallurgical and Materials Transactions B
    Academic article
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2020) Phase transformations in quartz used in silicon and ferrosilicon . Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Jayakumari, Sethulakshmy; Vullum, Per Erik; Van Helvoort, Antonius; Tangstad, Merete. (2020) SiC crystalline micro bullets on bio-carbon based charcoal substrate. Journal of Crystal Growth
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2020) Prereduction of Comilog- and Nchwaning ore. NTNU
    Doctoral dissertation
  • Tesfahunegn, Yonatan; Magnusson, Tordur; Tangstad, Merete; Sævarsdottir, Gudrun A.. (2020) Comparative study of AC and DC solvers based on current and power distributions in a submerged arc furnace. Metallurgical and Materials Transactions B
    Academic article
  • Kaffash, Hamideh; Xing, Xing; Tangstad, Merete. (2020) Wettability of cokes by Fe-Mn melt. Journal of Dispersion Science and Technology
    Academic article
  • Andresen, Birger; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2020) Silicon for the Chemical and Solar Industry XV. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Ngoy, Didier; Sukhomlinov, Dmitry; Tangstad, Merete. (2020) Pre-reduction Behaviour of Manganese Ores in H2 and CO Containing Gases. ISIJ International
    Academic article
  • Jesus, Leandro Gustavo de Mendes; Tangstad, Merete. (2020) CO Reactivity of Manganese Lumps Versus Briquettes. ISIJ International
    Academic article
  • Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete. (2020) Evolution of SiOx shell layers on SiC-SiOx core-shell nanowires. Materials Science Forum
    Academic article
  • Tangstad, Merete. (2020) Silicon for the Chemical and Solar Industry XV. NTNU
    Academic anthology/Conference proceedings
  • Folstad, Marit Buhaug; Ksiazek, Michal Tomasz; Tangstad, Merete. (2020) Slag in the Tapping Area in a Si Furnace.
    Academic chapter/article/Conference paper
  • Tangstad, Merete. (2020) The Norwegian Aluminium Production.
    Multimedia product
  • Pedersen, Tommy Andre; Tangstad, Merete. (2020) Electrical Resistivity in Carbon Materials Converting to SiC. NTNU
    Masters thesis
  • Sindland, Caroline; Tangstad, Merete. (2020) Production Rate of SiO Gas from Industrial Quartz and Silicon. NTNU
    Masters thesis
  • Jusnes, Karin Fjeldstad; Ringdalen, Eli; Tangstad, Merete. (2020) Phase Transformations in Quartz used in Silicon and Ferrosilicon Production. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2020) Phase transformation and thermal degradation in industrial quartz. NTNU
    Doctoral dissertation
  • Surup, Gerrit Ralf; Pedersen, Tommy Andre; Chaldien, Annah; Beukes, Johan Paul; Tangstad, Merete. (2020) Electrical Resistivity of Carbonaceous Bed Material at High Temperature. Processes
    Academic article
  • Sindland, Caroline; Tangstad, Merete. (2020) Production rate of SiO gas from industrial quartz and silicon . NTNU
    Masters thesis
  • Surup, Gerrit Ralf; Trubetskaya, Anna; Tangstad, Merete. (2020) Charcoal as an Alternative Reductant in Ferroalloy Production: A Review. Processes
    Academic literature review
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2020) Formation and Characterization of β- and α-Silicon Carbide Produced During Silicon/Ferrosilicon Process. Department of Materials Science and Engineering, Norwegian University of Science and Technology
    Doctoral dissertation
  • Larssen, Trine Asklund; Senk, Dieter Georg; Tangstad, Merete. (2020) Reduction of Manganese Ores in CO-CO2 Atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2020) Transformation of β-SiC from Charcoal, Coal, and Petroleum Coke to α-SiC at Higher Temperatures. Metallurgical and Materials Transactions B
    Academic article
  • Kaffash, Hamideh; Tangstad, Merete. (2020) Factors influencing dissolution of carbonaceous materials in liquid Fe– Mn. Journal of Iron and Steel Research International
    Academic article
  • Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete. (2020) Characterization, Thermodynamics and Mechanism of Formation of SiC-SiOx Core–Shell Nanowires. Metallurgical and Materials Transactions B
    Academic article
  • Aarnæs, Trygve Storm; Ringdalen, Eli; Tangstad, Merete. (2020) Silicon carbide formation from methane and silicon monoxide. Scientific Reports
    Academic article

2019

  • Broggi, Andrea; Tangstad, Merete; Ringdalen, Eli. (2019) Characterization of a Si-SiO2 Mixture Generated from SiO(g) and CO(g). Metallurgical and Materials Transactions B
    Academic article
  • Myklebust, Håkon Aleksander; Tangstad, Merete. (2019) Simulation of Electrical Current Paths in a MnFerroalloy Furnace. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2019) Dynamic Current and Power Distributions in a Submerged Arc Furnace. The Minerals, Metals & Materials Series
    Academic article
  • Kalenga, M; Tangstad, Merete; Pan, X. (2019) Phase Relations in Ferromanganese Production During Prereduction: South African Ores. Metallurgist (New York)
    Academic article
  • Tangstad, Merete; Safarian, Jafar; Bao, Sarina; Ringdalen, Eli; Valderhaug, Aasgeir. (2019) Reaction Rates of 2SiO2+SiC=3SiO+CO in Pellets at Elevated Temperatures. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Ramos, Diego Correa; Carneiro, Angélica de Cássia Oliveira; Tangstad, Merete; Saadieh, Raghed; Pereira, Bárbara Luísa Corradi. (2019) Quality of Wood and Charcoal from Eucalyptus Clones for Metallurgical Use. Floresta e Ambiente
    Academic article
  • Jiao, Jianmeng; Safarian, Jafar; Grorud, Bettina; Tangstad, Merete. (2019) High Temperature Interaction of Si-B Alloys with Graphite Crucible in Thermal Energy Storage Systems. Materials
    Academic article
  • Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne. (2019) Slag-metal interactions in the FeMn tapping process: Interfacial properties and wetting.
    Academic chapter/article/Conference paper
  • Jiao, Jianmeng; Grorud, Bettina; Safarian, Jafar; Tangstad, Merete. (2019) WETTABILITY OF MOLTEN Fe-Si-B ALLOY ON GRAPHITE, Al2O3, AND h-BN SUBSTRATES. Liquid Metal Processing & Casting Conference 2019
    Academic anthology/Conference proceedings
  • Larssen, Trine Asklund; Kero, Ida; Tangstad, Merete. (2019) Energy Distribution in HC FeMn and SiMn - Energy vs Exergy Analyses . The Southern African Journal of Mining and Metallurgy
    Academic article
  • Aarnæs, Trygve Storm; Tangstad, Merete. (2019) Effect of H2 on SiO and SiC formation. Építőanyag - Journal of Silicate Based and Composite Materials
    Academic article
  • Heimo, Juhani; Jokilaakso, Ari; Kekkonen, Marko; Tangstad, Merete; Støre, Anne. (2019) Thermal conductivity of titanium slags. Metallurgical Research and Technology
    Academic article
  • Jiao, Jianmeng; Grorud, Bettina; Sindland, Caroline; Safarian, Jafar; Tang, Kai; Sellevoll, Kathrine. (2019) The Use of Eutectic Fe-Si-B Alloy as a Phase Change Material in Thermal Energy Storage Systems. Materials
    Academic article
  • Kim, Pyunghwa; Larssen, Trine Asklund; Tangstad, Merete. (2019) Reduction rates of MnO and SiO2 in SiMn slags between 1500 and 1650°C. The Southern African Journal of Mining and Metallurgy
    Academic article

2018

  • Broggi, Andrea; Tangstad, Merete. (2018) Small scale experiments simulating condensation of SiO and CO in silicon furnace. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Andresen, Birger; Nygaard, Lars; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2018) Silicon for the Chemical and Solar Industry XIV. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Cracks, Disintegration and Phases Transformations in Quartz. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Cavity formation in silicon furnaces. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2018) Formation of elemental silicon in β-SiC par. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Polkowski, Wojciech; Sobczak, Natalia; Tangstad, Merete; Safarian, Jafar; Jiao, Jian Meng; Grorud, Bettina. (2018) Silicon and silicon-boron alloys as phase change materials in thermal energy storage units. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Li, Xiang; Tangstad, Merete. (2018) The Influence of Sulfur Content on the Carbothermal Reduction of SiMn Slag. Metallurgical and Materials Transactions B
    Academic article
  • Mwana Bute Ngoy, D; Kalenga wa Kalenga, M; Tangstad, Merete. (2018) Effect of Charge Basicity of Two Compositions on MnO Reduction During Smelting Ferromanganese. Metallurgist (New York)
    Academic article
  • Datas, Alejandro; Cristobal, Ana Belen; del Cañizo, Carlos; Antolin, Elisa; Beaughon, Michel; Nikolopoulos, Nikolaos. (2018) AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion. AIP Conference Proceedings
    Academic article
  • Kim, Pyunghwa; Tangstad, Merete. (2018) Kinetic Investigations of SiMn Slags From Different Mn Sources. Metallurgical and Materials Transactions B
    Academic article
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Simulation of the Ferrosilicon Process Using Small-Scale Laboratory Furnace. International Ferroalloys Congress INFACON : Proceedings
    Article in business/trade/industry journal
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Cavity Formation in Silicon Furnaces. Silicon for the Chemical and Solar Industry XIV Proceedings
    Article in business/trade/industry journal
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2018) Thermodynamics of Boron Removal from Silicon Using CaO-MgO-Al2O3-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Effect of carbide configuration on the current distribution in submerged arc furnaces for silicon production?A modelling approach. The Minerals, Metals & Materials Series
    Academic article
  • van Staden, Yolindi; Beukes, Johan Paul; van Zyl, Pieter Gideon; Ringdalen, Eli; Tangstad, Merete; Kleynhans, Ernst L.J.. (2018) Damring formation during rotary kiln chromite pre-reduction: Effects of pulverized carbonaceous fuel selection and partial pellet melting. Metallurgical and Materials Transactions B
    Academic article
  • Kim, Pyunghwa; Tangstad, Merete. (2018) Reduction Rates of SiMn Slags from Various Raw Materials. NTNU
    Doctoral dissertation
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Dynamic Current Distribution in the Electrodes of Submerged Arc Furnace Using Scalar and Vector Potentials. Lecture Notes in Computer Science (LNCS)
    Academic article
  • Vadon, Mathieu; Sortland, Øyvind Sunde; Nuta, Ioana; Chatillon, Christian; Tangstad, Merete; Chichignoud, Guy. (2018) CFD Modeling of boron removal from liquid silicon with cold gases and plasma. Metallurgical and Materials Transactions B
    Academic article
  • Vadon, Mathieu; Sortland, Øyvind Sunde; Tangstad, Merete; Chichignoud, Guy; Delannoy, Yves. (2018) Passivation Threshold for the Oxidation of Liquid Silicon and Thermodynamic Non-equilibrium in the Gas Phase. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Beukes, Paul; Steenkamp, Joalet Dalene; Ringdalen, Eli. (2018) Chapter 14: Coal-based reducing agents in ferroalloys and silicon production. Woodhead Publishing Limited
    Chapter
  • du Preez, S.P; Beukes, Paul; van Zyl, Peter; Tangstad, Merete; Tiedt, LR. (2018) Silicon Carbide Formation Enhanced by In-Situ-Formed Silicon Nitride: An Approach to Capture Thermal Energy of CO-Rich Off-Gas Combustion. Metallurgical and Materials Transactions B
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Tordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Effect of electrode shape on the current distribution in submerged arc furnaces for silicon production - A modelling approach. Symposium series - Southern African Institute of Mining and Metallurgy
    Academic article
  • Ngoy, Didier; Tangstad, Merete; Kalenga, Michel. (2018) Reduction Rate of MnO from Two Based Charges producing Ferromanganese. University of Johannesburg
    Masters thesis
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Phase Transformations from Quartz to Cristobalite. Springer Nature
    Academic chapter/article/Conference paper
  • Hustad, Hanne Mette; Tangstad, Merete. (2018) Tapping of FeSi Furnaces. NTNU
    Masters thesis
  • Li, Fei; Tangstad, Merete. (2018) Kinetic modeling of the reaction rate for quartz and carbon pellet. Metallurgical and Materials Transactions B
    Academic article
  • Li, Fei; Tangstad, Merete; Ringdalen, Eli. (2018) Carbothermal reduction of quartz and carbon pellets at elevated temperatures. Metallurgical and Materials Transactions B
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2018) Gaseous reduction of Mn ores in CO-CO2 atmosphere. Springer Nature
    Academic chapter/article/Conference paper

2017

  • Hustad, Hanne Mette; Tangstad, Merete. (2017) The effect of FexOy on Al2O3 – CaO – SiO2 slag systems. International Student Seminar in Stockholm
    Report
  • Kim, Pyunghwa; Larssen, Trine Asklund; Kawamoto, Ryosuke; Tangstad, Merete. (2017) Empirical Activation Energies of MnO and SiO2 Reduction in SiMn Slags Between 1500 and 1650 °C. The Minerals, Metals & Materials Series
    Academic article
  • Li, Fei; Tangstad, Merete. (2017) Carbothermal Reduction of Quartz with Carbon from Natural Gas. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Ringdalen, Eli; Manilla, Edmundo; Davila, Daniel. (2017) Pilot Scale Production of Manganese Ferroalloys Using Heat-Treated Mn-Nodules. JOM
    Academic article
  • Letout, Sebastien Romain; Ratvik, Arne Petter; Tangstad, Merete; Johansen, Stein Tore; Olsen, Jan Erik. (2017) A multiscale numerical approach of the dripping slag in the coke bed zone of a pilot scale Si-Mn furnace. SINTEF akademisk forlag
    Academic chapter/article/Conference paper
  • Polkowski, Wojciech; Sobczak, Natalia; Nowak, Rafal; Kudyba, Artur; Bruzda, Grzegorz; Polkowska, Adelajda. (2017) Wetting Behavior and Reactivity of Molten Silicon with h-BN Substrate at Ultrahigh Temperatures up to 1750 °C. Journal of materials engineering and performance (Print)
    Academic article
  • Larssen, Trine; Tangstad, Merete. (2017) Reduction of MnO and SiO2 from Comilog and Assman based slags. NTNU
    Masters thesis
  • Tangstad, Merete; Holm, Katrine. (2017) The properties of calcined anthracite. NTNU
    Masters thesis

2016

  • Li, Fei; Tangstad, Merete. (2016) Use of agglomerated raw materials in Si production. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2016) Phase transformations in quartz and it's effect on furnace operation. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Ksiazek, Michal; Tangstad, Merete; Ringdalen, Eli. (2016) Five furnaces five different sto. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Nygård, Lars; Pachaly, Bernd; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2016) Silicon for the Chemical and Solar Industry XIII. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Olsen, Håkon Aleksander Hartvedt; Tangstad, Merete. (2016) A theoretical study on the reaction rates in the SiMn-production process. Norwegian University of Science and Technology
    Masters thesis
  • Bao, Sarina; Syvertsen, Martin; Nordmark, Arne; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2016) Plant scale investigation of liquid aluminium filtration by Al2O3 and SiC ceramic foam filters. The Minerals, Metals & Materials Series
    Academic article

2015

  • Sortland, Øyvind Sunde; Tangstad, Merete. (2015) Boron removal from silicon by steam and hydrogen. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Tangstad, Merete; Ni, Feng. (2015) Kinetics of the reaction between quartz and silicon carbide in different gas atmospheres. NTNU
    Masters thesis
  • Nadir, Bilal; Tangstad, Merete. (2015) Mn alloys production with the use of natural gas. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Masters thesis
  • Steenkamp, JD; Pistorius, P Chris; Tangstad, Merete. (2015) Wear mechanisms of carbon-based refractory materials in SiMn tap-holes—part II: in situ observation of cemical reactions. Metallurgical and Materials Transactions B
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2015) Thermodynamic Activities and Distributions of Calcium and Magnesium Between Silicon and CaO-MgO-SiO2 Slags at 1873 K (1600 °C). Metallurgical and Materials Transactions B
    Academic article
  • Steenkamp, JD; Pistorius, PC; Tangstad, Merete. (2015) Chemical wear analysis of a tap-hole on a SiMn production furnace. The Southern African Journal of Mining and Metallurgy
    Academic article
  • Li, Fei; Tangstad, Merete; Solheim, Ingeborg. (2015) Quartz and Carbon Black Pellets for Silicon Production.
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Ringdalen, Eli; Ichihara, K. (2015) Pretreatment unit in ferromanganese production.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete; Brynjulfsen, Thomas. (2015) Melting Behaviour of Mn sources - effect on furnace performance.
    Academic chapter/article/Conference paper
  • Steenkamp, Joalet Dalene; Pistorius, Petrus Chris; Tangstad, Merete. (2015) Wear mechanisms of carbon-based refractory materials in silicomanganese tap holes—part I: equilibrium calculations and slag and refractory characterization. Metallurgical and Materials Transactions B
    Academic article

2014

  • Tangstad, Merete; Ksiazek, Michal Tomasz; Andersen, Jan Erlend. (2014) Zones and materials in the Si furnace. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Sortland, Øyvind Sunde; Tangstad, Merete. (2014) Boron Removal from Silicon Melts by H2O/H2 Gas Blowing: Mass Transfer in Gas and Melt. Metallurgical and Materials Transactions E
    Academic article
  • Kline, Jeffery; Tangstad, Merete; Tranell, Gabriella. (2014) A Raman Spectroscopic Study of the Structural Modifications Associated with the Addition of Calcium Oxide and Boron Oxide to Silica. Metallurgical and Materials Transactions B
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Erratum to: Distribution of boron between silicon and CaO-MgO-Al2O3-SiO2 slags. Metallurgical and Materials Transactions B
    Errata
  • Tang, Kai; Løvvik, Ole Martin; Safarian-Dastjerdi, Jafar; Ma, Xiang; Tangstad, Merete. (2014) Removal of Phosphorus in Metallurgical Silicon by Rare Earth Elements. Metallurgical and Materials Transactions E
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2014) The interactions of carbon and nitrogen in liquid silicon. High Temperature Materials and Processes
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Distribution of Boron Between Silicon and CaO-MgO-Al2O3-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Turkova, Kira; Slizovskiy, Dmitry; Tangstad, Merete. (2014) Co reactivity and porosity of manganese materials. ISIJ International
    Academic article
  • Øye, Harald Arnljot; Brekken, H.; Nygaard, Lars; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard. (2014) Silicon for the Chemical and Solar Industry XII. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Tangstad, Merete; Brynjulfsen, Thomas; Ringdalen, Eli. (2014) Reduction of agglomerated manganese ores in a 150 kW pilot scale furnace. John Wiley & Sons
    Academic chapter/article/Conference paper
  • Krokstad, Magnus; Tangstad, Merete. (2014) Elektrisk resistivitet i industrielle SiC-lag. NTNU
    Masters thesis
  • Ksiazek, Michal Tomasz; Tangstad, Merete; Dalaker, Halvor; Ringdalen, Eli. (2014) Reduction of SiO2 to SiC using natural gas. Metallurgical and Materials Transactions E
    Academic article

2013

  • Næss, Mari K.; Tranell, Gabriella; Tangstad, Merete. (2013) Mechanisms and kinetics of liquid silicon oxidation. Doktoravhandlinger ved NTNU (145)
    Doctoral dissertation
  • Brynjulfsen, Thomas; Tangstad, Merete. (2013) Reduction of manganese ore agglomerates. NTNU-trykk
    Doctoral dissertation
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2013) Distribution of boron between silicon and CaO-SiO2, MgO-SiO2, CaO-MgO-SiO2 and CaO-Al2O3-SiO2 slags at 1600°C. Doktoravhandlinger ved NTNU (326)
    Doctoral dissertation
  • Bao, Sarina; Syvertsen, Martin; Nordmark, Arne; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2013) Plant Scale Investigation of Liquid Aluminium Filtration by Al2O3 and SiC Ceramic Foam Filters. Light Metals
    Academic article
  • Tangstad, Merete. (2013) Kobberprosessen i pepperkakeform. Arbeidets Rett
    Popular scientific article
  • Tangstad, Merete. (2013) Back to BASIC. International Innovation
    Popular scientific article
  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete. (2013) Thermodynamic and Kinetic Behavior of B and Na Through the Contact of B-Doped Silicon with Na2O-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Ladam, Yves; Tangstad, Merete; Ravary, B. (2013) Energy mapping of industrial ferroalloy plants.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2013) Study of SiMn production in Pilot Scale experiments – Comparing Carajas sinter and Assmang ore.
    Academic chapter/article/Conference paper
  • Ksiazek, Michal; Mánik, Tomás; Tangstad, Merete; Ringdalen, Eli. (2013) The thermal diffusivity of raw materials for ferromanganese production.
    Academic chapter/article/Conference paper

2012

  • Tang, Kai; Andersson, Stefan; Nordstrand, Erlend Fjøsne; Tangstad, Merete. (2012) Removal of Boron in Silicon by H2-H2O Gas Mixtures. JOM
    Academic article
  • Nordstrand, Erlend Fjøsne; Tangstad, Merete. (2012) Removal of boron from silicon by moist hydrogen gas. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete. (2012) Thermodynamic activities in silicon binary melts. Journal of Materials Science
    Academic article
  • Kadkhodabeigi, Mehdi; Safarian-Dastjerdi, Jafar; Tveit, Halvard; Tangstad, Merete; Johansen, Stein Tore. (2012) Removal of SiC particles from solar grade silicon melts by imposition of high frequency magnetic field. Transactions of Nonferrous Metals Society of China
    Academic article
  • Bao, Sarina; Kvithyld, Anne; Tang, Kai; Engh, Thorvald Abel; Tangstad, Merete. (2012) WETTABILITY OF ALUMINIUM WITH ALUMINIUM CARBIDE (GRAPHITE) IN ALUMINIUM FILTRATION. Light Metals
    Academic article
  • Kamfjord, Nils Eivind; Tveit, Halvard; Tangstad, Merete. (2012) Mass and energy balances of the silicon process. NTNU-trykk
    Doctoral dissertation
  • Ksiazek, Michal; Tangstad, Merete. (2012) The thermophysical properties of raw materials for ferromanganese production. NTNU-trykk
    Doctoral dissertation
  • Slizovskiy, Dmitriy; Tangstad, Merete. (2012) Agglomeration in ferromanganese submerged arc furnaces with focus on K and Zn deposition. NTNU-trykk
    Doctoral dissertation
  • Bao, Sarina; Engh, Thorvald Abel; Syvertsen, Martin; Kvithyld, Anne; Tangstad, Merete. (2012) Inclusion (particle) removal by interception and gravity in ceramic foam filters. Journal of Materials Science
    Academic article
  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete. (2012) Processes for upgrading metallurgical grade silicon to solar grade silicon. Energy Procedia
    Academic article
  • Tang, Kai; Tangstad, Merete. (2012) A thermodynamic description of the Si-rich Si-Fe system. Acta Metallurgica Sinica (English Letters)
    Academic article
  • Bao, Sarina; Tang, Kai; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2012) Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration. Transactions of Nonferrous Metals Society of China
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2012) Vacuum refining of molten silicon. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2012) Kinetics and Mechanism of Phosphorus Removal from Silicon in Vacuum Induction Refining. High Temperature Materials and Processes
    Academic article
  • Øvrelid, Eivind Johannes; Tangstad, Merete; Tranell, Gabriella; Lohne, Otto; Ceccaroli, Bruno. (2012) New advances in metallurgical solar grade silicon based on recent Norwegian research activities. Physica Status Solidi. C, Current topics in solid state physics
    Academic article
  • Sulentic, Ines; Tangstad, Merete. (2012) Removal of Boron from Silicon by Gas refining with Water and Hydrogen. NTNU
    Masters thesis
  • Ringdalen, Eli; Tangstad, Merete. (2012) Reaction Mechanisms in Carbothermic Production of Silicon, Study of Selected Reactions. John Wiley & Sons
    Academic chapter/article/Conference paper

2011

  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete. (2011) Liquidus of Silicon Binary Systems. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2011) Phase diagram study of the Si-P system in Si-rich region. Journal of Materials Research
    Academic article
  • Zheng, Song-sheng; Engh, Thorvald Abel; Tangstad, Merete; Luo, Xue-tao. (2011) Separation of Phosphorus from silicon by induction vacuum refining. Separation and Purification Technology
    Academic article
  • Bao, Sarina; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2011) Wettability of Aluminium with SiC and Graphite in Aluminium Filtration. Wiley-Blackwell
    Academic chapter/article/Conference paper
  • Zheng, Song-sheng; Safarian, Jafar; Seok, Seongho; Kim, Sungwook; Tangstad, Merete; Luo, Xue-tao. (2011) Elimination of phosphorus vaporizing from molten silicon at finite reduced pressure. Transactions of Nonferrous Metals Society of China
    Academic article
  • Bao, Sarina; Tang, Kai; Kvithyld, Anne; Tangstad, Merete; Engh, Thorvald Abel. (2011) Wettability of Aluminum on Alumina. Metallurgical and Materials Transactions B
    Academic article
  • Zheng, Song-sheng; Engh, Thorvald Abel; Tangstad, Merete; Luo, Xue-tao. (2011) Numerical Simulation of Phosphorus Removal from Silicon by Induction Vacuum Refining. Metallurgical and Materials Transactions A
    Academic article
  • Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2011) The thermophysical properties of raw materials for ferromanganese production.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2011) Pyrometallurgical Research at SINTEF and NTNU in Norway.
    Academic chapter/article/Conference paper

2010

  • Kline, Jeffery; Tangstad, Merete; Tranell, Gabriella. (2010) Effects of calcium oxide on the silicate structure during slag refining of silicon: a Raman spectroscopic study.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2010) Wetting Properties of Molten Silicon with Graphite Materials. Metallurgical and Materials Transactions A
    Academic article
  • Ringdalen, Eli; Gaal, S.; Tangstad, Merete; Ostrovski, Oleg. (2010) Ore melting and reduction in silicomanganese production. Metallurgical and Materials Transactions B
    Academic article
  • Ciftja, A.; Engh, Thorvald Abel; Tangstad, Merete. (2010) A model of foam filters. Metallurgical and Materials Transactions B
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2010) Boron - nitrogen interactions in liquid silicon. Conference record of the Photovoltaic Specialists Conference
    Academic article
  • Sørensen, Bjørn Eske; Gaal, Sean; Ringdalen, Eli; Tangstad, Merete; Kononov, Ring; Ostrovski, Oleg. (2010) Phase compositions of manganese ores and their change in the process of calcination. International Journal of Mineral Processing
    Academic article
  • Brynjulfsen, Ingvild; Bakken, Astrid; Tangstad, Merete; Arnberg, Lars. (2010) Influence of oxidation on the wetting behavior of liquid silicon on Si3N4-coated substrates. Journal of Crystal Growth
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2010) Vacuum behaviour of the dissolved elements in molten silicon. Tapir Akademisk Forlag
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2010) A model of foam filters. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Leroy, Delphine; Ringdalen, Eli. (2010) Behaviour of agglomerates in ferromanganese production.
    Academic chapter/article/Conference paper
  • Sørensen, Bjørn Eske; Gaal, S.; Tangstad, Merete; Ringdalen, Eli; Kononov, Ring; Ostrovski, Oleg. (2010) Properties of manganese ores and their change in the process of calcination.
    Academic chapter/article/Conference paper
  • Gaal, Sean; Tangstad, Merete; Ravary, Benjamin; Ringdalen, Eli. (2010) Recycling of sludge from the production of manganese.
    Academic chapter/article/Conference paper

2009

  • Tang, Kai; Øvrelid, Eivind Johannes; Tranell, Gabriella; Tangstad, Merete. (2009) Critical assessment of the impurity diffusivities in solid and liquid silicon. JOM
    Academic article
  • Eidem, P.A.; Tangstad, Merete; Bakken, Jon Arne. (2009) Electrical conditions of a coke bed in SiMn production. Canadian metallurgical quarterly
    Academic article
  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete; Tranell, Gabriella. (2009) Kinetics and mechanism of the simultaneous carbothermic reduction of FeO and MnO from high-carbon ferromanganese slag. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2009) Wettability of silicon carbide by CaO-SiO2 slags. Metallurgical and Materials Transactions B
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2009) Time and temperature dependence of the solubility of carbon in liquid silicon equilibrated with silicon carbide and its dependence on boron levels. Materials transactions
    Academic article
  • Eidem, Per Anders; Runde, Magne; Tangstad, Merete; Bakken, Jon Arne; Zhou, Z. Y.; Yu, A. B.. (2009) Effect of contact resistance on bulk resistivity of dry coke beds. Metallurgical and Materials Transactions B
    Academic article
  • Ciftja, Arjan; Øvrelid, E.J.; Tangstad, Merete; Engh, Thorvald Abel; Fejzo, A.. (2009) Settling of particles in molten silicon before directional casting of a solar grade silicon ingot.
    Academic chapter/article/Conference paper
  • Bao, Sarina; Kvithyld, A.; Gaal, S.; Engh, Thorvald Abel; Tangstad, Merete. (2009) Wetting of pure aluminum on filter materials graphite, AlF3 and Al2O3.
    Academic chapter/article/Conference paper
  • Øvrelid, E.J.; Tang, K.; Engh, Thorvald Abel; Tangstad, Merete. (2009) Feedstock. Springer
    Academic chapter/article/Conference paper
  • Ciftja, A; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, A.; Øvrelid, E.J.. (2009) Removal of inclusions from silicon. JOM
    Academic article
  • Tang, K.; Øvrelid, E.J.; Tranell, Gabriella; Tangstad, Merete. (2009) A thermochemical database for the solar cell silicon materials. Materials transactions
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2009) Temperature dependence of the solubility of nitrogen in liquid silicon equilibrated with silicon nitride. Materials transactions
    Academic article
  • Ringdalen, Eli; Tangstad, Merete; Gaal, S. (2009) Initial melting and Reduction of Ore and Fluxes at the Top of the Coke Bed during SiMn-production.
    Academic chapter/article/Conference paper
  • Gaal, S; Ringdalen, Eli; Vaganov, Danil; Tangstad, Merete. (2009) Melting phenomenon of manganese bearing ores.
    Academic chapter/article/Conference paper

2008

  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete; Kolbeinsen, Leiv; Gaal, Sean; Kaczorowski, Jakub. (2008) Reduction kinetics of MnO from high-carbon ferromanganese slags by carbonaceous materials in Ar and CO atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Ciftja, Arjan; Tangstad, Merete; Engh, Thorvald Abel. (2008) Wettability of silicon with refractory materials: A review. NTNU Trykk
    Academic anthology/Conference proceedings
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2008) Refining and recycling of silicon: A review. NTNU Trykk
    Academic anthology/Conference proceedings
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, Anne. (2008) Recycling of solar cell silicon scrap by filtration.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Øvrelid, E. J.; Tangstad, Merete; Engh, Thorvald Abel. (2008) Settling of solid particles in molten silicon as a refining step from metallurgical grade to solar grade silicon.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, Anne. (2008) Recycling of silicon scrap by filtration.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2008) The Solubility Of Carbon In Liquid Silicon And Its Dependence On The Boron Levels.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2008) TIME AND TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF CARBON IN LIQUID SILICON.
    Academic chapter/article/Conference paper
  • Eidem, Per Anders; Tangstad, Merete; Bakken, Jon Arne. (2008) Determination of electrical resistivity of dry coke beds. Metallurgical and Materials Transactions B
    Academic article

2007

  • Eidem, Per Anders; Tangstad, Merete; Bakken, Jon Arne. (2007) Measurement of material resistivity and contact resistance of metallurgical coke. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2007) EFFECTIVE DISTRIBUTION COEFFICIENT OF BORON IN MULTICRYSTALLINE SOLAR GRADE SILICON.
    Academic chapter/article/Conference paper
  • Tang, Kai; Tangstad, Merete. (2007) Modeling viscosities of ferromanganese slags. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Ishak, R.J.; Tangstad, Merete. (2007) Degree of prereduction without coke consumption in industrial furnaces. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Monsen, Bodil; Tangstad, Merete; Solheim, I.; Syvertsen, M.; Ishak, R.J.; Midtgaard, H.. (2007) Charcoal for manganese alloy production. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Gaal, Sean; Lou, Dechun; Wasbø, Stein; Ravary, Benjamin; Tangstad, Merete. (2007) Melting phenomena in ferromanganese production. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Tranell, Gabriella; Gaal, Sean; Lu, D.; Tangstad, Merete; Safarian Dastjerdi, Jaafar. (2007) Reduction kinetics of manganese oxide from HC FeMn slags. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Olsen, Sverre E.; Tangstad, Merete; Lindstad, Tor. (2007) Production of manganese ferroalloys. Tapir Akademisk Forlag Tapir Akademisk Forlag
    Academic monograph

2004

  • Gaal, Sean; Berg, K.; Tranell, G.; Olsen, Sverre E.; Tangstad, Merete. (2004) An investigation into aspects of liquid phase reduction of manganese and silica containing slag. International Conference on Molten Slags Fluxes and Salts : Proceedings
    Academic article
  • Olsen, Sverre E.; Tangstad, Merete. (2004) Silicomanganese Production - Process Understanding. Proceedings / INFACON
    Academic article
  • Monsen, Bodil Elisabeth; Tangstad, Merete; Midtgaard, Håvard. (2004) Use of Charcoal in Silicomanganese Production.
    Academic chapter/article/Conference paper

2002

  • Ostrovski, Oleg; Olsen, Sverre E.; Yastreboff, Michael; Tangstad, Merete. (2002) Kinetic Modelling of MnO Reduction from Manganese Ore. Canadian metallurgical quarterly
    Academic article

2001

  • Røhmen, Camilla Modell; Tangstad, Merete; Olsen, Sverre E.. (2001) Melting and flow of slag and manganese ore in ferromanganese coke bed. SINTEF Materials Technology
    Report

1999

  • Olsen, Sverre E.; Tangstad, Merete. (1999) Smeltereduksjon av HC FeMn-slagg i ASEA induksjonsovn. SINTEF Materials Technology, STF24 F99558
    Report

Journal publications

  • Polkowski, Wojciech; Lo Biundo, Paolo Lai Zhong; Jiao, Jianmeng; Wallin, Bogg Maria Elisabeth; Kalicki, Bartosz; Ciftci, Jakub. (2025) Micro-encapsulation of Si-Fe ultra-high temperature phase change material: Fabrication and basic energy storage properties. Results in Engineering (RINENG)
    Academic article
  • Ernst, M.S.; Tangstad, Merete; Beukes, J.P.; Ringdalen, Eli; Du Preez, Preez. (2025) The effect of hydrogen pre-reduction on the carbon-reducibility of pelletised UG2 chromite. Minerals Engineering
    Academic article
  • Rimal, Vishal; Tangstad, Merete. (2025) Kinetics of Manganese Reduction Comparing Synthetic Slags and Ores for Ferromanganese Production. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Ringdalen, Eli. (2025) Decarbonization Ferroalloy Production Using Biocarbon. Minerals
    Academic literature review
  • Han, Yu; Bernasowski, Mikolaj; Ślęzak, Marta; Migas, Piotr; Mohanty, Sunati; Cheisson, Thibault. (2025) A Sustainable Way to Produce Mn-Sinter with Charcoal. Journal of Sustainable Metallurgy
    Academic article
  • Lo Biundo, Paolo Lai Zhong; Jiao, Jianmeng; Wallin, Bogg Maria Elisabeth; Polkowska, Adelajda; Nowak, Rafal; Bruzda, Grzegorz. (2025) Thermophysical properties of eutectic Fe-57Si ultra-high-temperature metallic phase change material. Journal of Thermal Analysis and Calorimetry
    Academic article
  • Tangstad, Merete; Solberg, Emma; Marius, Larsen; Kaffash, Hamideh. (2024) CO2 Reactivity with Potassium and Strength of Densified Charcoal. Advancement in Mining and Mineral Engineering
    Academic article
  • Folstad, Marit Buhaug; Einarsrud, Kristian Etienne; Tangstad, Merete. (2024) Dissolution of CaO in SiO2-CaO-Al2O3 Slag in Si Production. Metals
    Academic article
  • Haraldsson, Hakon Valur; Traustason, Halldór; Tesfahunegn, Yonatan A.; Tangstad, Merete; Sævarsdottir, Gudrun. (2024) Modeling and Comparison Study of Industrial AC-Arcs. Metallurgical and Materials Transactions B
    Academic article
  • Han, Yu; Tangstad, Merete. (2024) Metallurgical Properties of Biocarbon in Ferroalloy Production─A Review. ACS Omega
    Academic literature review
  • Kaam, Tristan Petrus Maria van; du Preez, Stephanus P.; Tangstad, Merete; Lobo, Stephen Ceasar. (2024) Hydrogen reduction of ilmenite: effects of oxidation. Canadian metallurgical quarterly
    Academic article
  • Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2024) Studying the Structure and Viscosity of MnO-SiO<inf>2</inf>-CaO-Al<inf>2</inf>O<inf>3</inf>-MgO Slag System. Materials
    Academic article
  • Ernst, Marna; Tangstad, Merete; Du Preez, Stephan. (2024) Pre-reduction of Nchwaning manganese ore in CO/CO2, H2/H2O, and H2 atmospheres. Minerals Engineering
    Academic article
  • Folstad, Marit Buhaug; Yu, Han; Wang, Haijuan; Tangstad, Merete. (2023) Disintegration of Six Different Quartz Types during Heating to 1600 °C. Minerals
    Academic article
  • Hoover, Haley Iris; Fromreide, Mads; Sævarsdottir, Gudrun Arnbjörg; Tangstad, Merete. (2023) Bulk Resistivity of Materials in the Si/FeSi Furnace. Processes
    Academic article
  • du Preez, Stephanus Petrus; Kaam, Tristan Petrus Maria van; Ringdalen, Eli; Tangstad, Merete; Morita, Kazuki; Bessarabov, Dmitri G.. (2023) An Overview of Currently Applied Ferrochrome Production Processes and Their Waste Management Practices. Minerals
    Academic literature review
  • Larssen, Trine Asklund; Tangstad, Merete. (2023) Effect of Raw Materials on Temperature Development during Prereduction of Comilog and Nchwaning Manganese Ores. Minerals
    Academic article
  • Jiao, Jianmeng; Jayakumari, Sethulakshmy; Wallin, Bogg Maria Elisabeth; Tangstad, Merete. (2023) Graphite crucible interaction with Fe–Si–B phase change material in pilot-scale experiments. High Temperature Materials and Processes
    Academic article
  • Davies, Emlyn John; Tangstad, Merete; Schanche, Trygve Lindahl; du Preez, Stephanus Petrus. (2023) Pre-reduction of United Manganese of Kalahari Ore in CO/CO2, H2/H2O, and H2 Atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Bublik, Sergey; Tangstad, Merete; Einarsrud, Kristian Etienne. (2022) Interfacial Behaviour in Ferroalloys: The Influence of FeMn Slag Composition. Metallurgical and Materials Transactions B
    Academic article
  • Jiao, Jian Meng; Safarian, Jafar; Tangstad, Merete. (2022) The Use of Fe-26Si-9B Alloy as Phase Change Material in Si<inf>3</inf>N<inf>4</inf> Container. Crystals
    Academic article
  • Tangstad, Merete; Olsen, Jan Erik; Ringdalen, Eli; Ksiazek, Michal Tomasz; Reynolds, Quinn; Steenkamp, Joalet. (2022) Conceptual Tapping Model of Mn-Ferroalloy Furnaces. JOM
    Academic article
  • Hoover, Haley; Andersen, Vegar; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Excavation of 160kW Pilot Scale Si furnace. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Mukono, Tichaona; Reiersen, Henrik Stensdal; Schanche, Trygve Lindahl; Wallin, Maria; Tangstad, Merete. (2022) Prereduction Behavior of Manganese Ores With Solid Carbon and in CO/CO<inf>2</inf> Gas Atmosphere. Metallurgical and Materials Transactions B
    Academic article
  • Mukono, Tichaona; Wallin, Maria; Tangstad, Merete. (2022) Slag Reduction and Viscosities Interaction in Ferromanganese Process. The Minerals, Metals & Materials Series
    Academic article
  • da Luz Pascoal, Aline; Aristides Victor Rossoni, Hygor; Kaffash, Hamideh; Tangstad, Merete; Bicalho Henriques, Andréia. (2022) Study of the Physical Behaviour and the Carbothermal Reduction of Self-Reducing Briquettes Developed with Iron Ore Fines, Charcoal and Silica Fume Residues. Sustainability
    Academic article
  • Olsen, Jan Erik; Ksiazek, Michal Tomasz; Tangstad, Merete. (2022) CFD Study on Continuous Tapping of Silicon. The Minerals, Metals & Materials Series
    Academic article
  • Surup, Gerrit Ralf; Kaffash, Hamideh; Ma, Yan; Trubetskaya, Anna; Pettersen, Johan Berg; Tangstad, Merete. (2022) Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production. Energies
    Academic article
  • Davies, Jamey; Tangstad, Merete; Ringdalen, Eli; Beukes, Johan Paul; Bessarabov, Dmitri; du Preez, Stephanus Petrus. (2022) The Effect of Pre-Oxidation on the Reducibility of Chromite Using Hydrogen: A Preliminary Study. Minerals
    Academic article
  • Kaffash, Hamideh; Tangstad, Merete. (2022) CO2 Gasification of Densified Biomass: The Influence of K on Reaction Rate. JOM
    Academic article
  • Davies, Jamey; Paktunc, Dogan; Ramos-Hernandez, José Juan; Tangstad, Merete; Ringdalen, Eli; Beukes, Johan P.. (2022) The use of hydrogen as a potential reductant in the chromite smelting industry. Minerals
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete. (2022) Effect of Moisture, Hydrogen, and Water–Gas Shift Reaction on the Prereduction Behavior of Comilog and Nchwaning Manganese Ores. Metallurgical and Materials Transactions B
    Academic article
  • Mukono, Tichaona; Wallin, Maria; Tangstad, Merete. (2022) Phase Distribution During Slag Formation in Mn Ferroalloy Production. Metallurgical and Materials Transactions B
    Academic article
  • Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2022) A Raman-Structure Model for the Viscosity of SiO2- CaO-Al2O3 System. Metallurgical and Materials Transactions B
    Academic article
  • Schanche, Trygve Lindahl; Tangstad, Merete. (2021) Isothermal Reduction of Nchwaning Manganese Ore in CO/CO2/H2 Atmospheres. SSRN Electronic Journal
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Sævarsdottir, Gudrun. (2021) The Effect of Electrode Movements on Electrical Characteristics of a Submerged Arc Furnace. JOM
    Academic article
  • Mukono, Tichaona; Gjøvik, Jonas Einan; Gaertner, Heiko; Wallin, Maria; Ringdalen, Eli; Tangstad, Merete. (2021) Extent of Ore Prereduction in Pilot-scale Production of High Carbon Ferromanganese. SSRN Electronic Journal
    Academic article
  • Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne. (2021) Interfacial Behaviour in Ferroalloys: The Influence of Sulfur in FeMn and SiMn Systems. Metallurgical and Materials Transactions B
    Academic article
  • Aarnæs, Trygve Storm; Tangstad, Merete; Ringdalen, Eli. (2021) SiC formation and SiO reactivity of methane at high temperatures. Materials Chemistry and Physics
    Academic article
  • Canaguier, Vincent Yves; Tangstad, Merete. (2021) In situ observation of the carbothermic reduction and foaming of slags in silicomanganese production. Processes
    Academic article
  • Jiao, Jianmeng; Tang, Kai; Safarian, Jafar; Grorud, Bettina; Sellevoll, Kathrine; Tangstad, Merete. (2021) High temperature interaction between Si–B alloys and Si3N4. Ceramics International
    Academic article
  • Larssen, Trine Asklund; Senk, Dieter Georg; Tangstad, Merete. (2021) Reaction Rate Analysis of Manganese Ore Prereduction in CO-CO2 Atmosphere. Metallurgical and Materials Transactions B
    Academic article
  • Bao, Sarina; Tangstad, Merete; Tang, Kai; Einarsrud, Kristian Etienne; Syvertsen, Martin; Onsøien, Morten Ingar. (2021) Investigation of Two Immiscible Liquids Wetting at Elevated Temperature: Interaction Between Liquid FeMn Alloy and Liquid Slag. Metallurgical and Materials Transactions B
    Academic article
  • Ramos, D.C.; Carneiro, A.C.O.; Tangstad, Merete; Pereira, B.L.C.; Saadieh, Raghed; Oliveira, A.C.. (2021) Reactivity assessment of charcoal for use in silicon production. European Journal of Wood and Wood Products
    Academic article
  • Folstad, Marit Buhaug; Ringdalen, Eli; Tveit, Halvard; Tangstad, Merete. (2021) Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production. Metallurgical and Materials Transactions B
    Academic article
  • Goso, Xolisa; Petersen, Jochen; Tangstad, Merete; Safarian, Jafar. (2021) Beneficiation of fluxed titaniferous slag to a marketable titania product using the modified upgraded slag process. Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy
    Academic article
  • Tangstad, Merete; Bublik, Sergey; Haghdani, Shokouh; Einarsrud, Kristian Etienne; Tang, Kai. (2021) Slag Properties in the Primary Production Process of Mn-Ferroalloys. Metallurgical and Materials Transactions B
    Academic literature review
  • Schanche, Trygve Lindahl; Tangstad, Merete. (2021) Prereduction of nchwaning ore in CO/CO<inf>2</inf>/H<inf>2</inf> gas mixtures. Minerals
    Academic article
  • Larssen, Trine Asklund; Tangstad, Merete. (2021) Off-gas characteristics for varying conditions in the prereduction zone of a ferromanganese furnace – a basis for energy recovery. Social Science Research Network (SSRN)
    Academic article
  • Sindland, Caroline; Tangstad, Merete. (2021) Production Rate of SiO Gas from Industrial Quartz and Silicon. Metallurgical and Materials Transactions B
    Academic article
  • Surup, Gerrit Ralf; Trubetskaya, Anna; Tangstad, Merete. (2021) Life cycle assessment of renewable reductants in the ferromanganese alloy production: A review. Processes
    Academic literature review
  • He, Jiali; Jusnes, Karin Fjeldstad; Tangstad, Merete. (2021) Phase transformation in quartz at elevated temperatures. Aspects in Mining & Mineral Science (AMMS)
    Article in business/trade/industry journal
  • Kaffash, Hamideh; Surup, Gerrit Ralf; Tangstad, Merete. (2021) Densification of Biocarbon and Its Effect on CO2 Reactivity . Processes
    Academic article
  • Glastonbury, Ralph; Beukes, Paul; van Zyl, Pieter Gideon; Tangstad, Merete; Ringdalen, Eli; Dall, Douglas. (2021) Characterisation of a real-world Søderberg electrode. Metals
    Academic article
  • Jiao, Jian Meng; Grorud, Bettina; Safarian, Jafar; Tangstad, Merete. (2020) The Use of Si-B Alloys in Thermal Energy Storage System. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Li, Xiang; Tang, Kai; Tangstad, Merete. (2020) Reduction and Dissolution Behaviour of Manganese Slag in the Ferromanganese Process. Minerals
    Academic article
  • Canaguier, Vincent Yves; Tangstad, Merete. (2020) Kinetics of Slag Reduction in Silicomanganese Production. Metallurgical and Materials Transactions B
    Academic article
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2020) Phase transformations in quartz used in silicon and ferrosilicon . Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Jayakumari, Sethulakshmy; Vullum, Per Erik; Van Helvoort, Antonius; Tangstad, Merete. (2020) SiC crystalline micro bullets on bio-carbon based charcoal substrate. Journal of Crystal Growth
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Tordur; Tangstad, Merete; Sævarsdottir, Gudrun A.. (2020) Comparative study of AC and DC solvers based on current and power distributions in a submerged arc furnace. Metallurgical and Materials Transactions B
    Academic article
  • Kaffash, Hamideh; Xing, Xing; Tangstad, Merete. (2020) Wettability of cokes by Fe-Mn melt. Journal of Dispersion Science and Technology
    Academic article
  • Ngoy, Didier; Sukhomlinov, Dmitry; Tangstad, Merete. (2020) Pre-reduction Behaviour of Manganese Ores in H2 and CO Containing Gases. ISIJ International
    Academic article
  • Jesus, Leandro Gustavo de Mendes; Tangstad, Merete. (2020) CO Reactivity of Manganese Lumps Versus Briquettes. ISIJ International
    Academic article
  • Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete. (2020) Evolution of SiOx shell layers on SiC-SiOx core-shell nanowires. Materials Science Forum
    Academic article
  • Jusnes, Karin Fjeldstad; Ringdalen, Eli; Tangstad, Merete. (2020) Phase Transformations in Quartz used in Silicon and Ferrosilicon Production. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Surup, Gerrit Ralf; Pedersen, Tommy Andre; Chaldien, Annah; Beukes, Johan Paul; Tangstad, Merete. (2020) Electrical Resistivity of Carbonaceous Bed Material at High Temperature. Processes
    Academic article
  • Surup, Gerrit Ralf; Trubetskaya, Anna; Tangstad, Merete. (2020) Charcoal as an Alternative Reductant in Ferroalloy Production: A Review. Processes
    Academic literature review
  • Larssen, Trine Asklund; Senk, Dieter Georg; Tangstad, Merete. (2020) Reduction of Manganese Ores in CO-CO2 Atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2020) Transformation of β-SiC from Charcoal, Coal, and Petroleum Coke to α-SiC at Higher Temperatures. Metallurgical and Materials Transactions B
    Academic article
  • Kaffash, Hamideh; Tangstad, Merete. (2020) Factors influencing dissolution of carbonaceous materials in liquid Fe– Mn. Journal of Iron and Steel Research International
    Academic article
  • Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete. (2020) Characterization, Thermodynamics and Mechanism of Formation of SiC-SiOx Core–Shell Nanowires. Metallurgical and Materials Transactions B
    Academic article
  • Aarnæs, Trygve Storm; Ringdalen, Eli; Tangstad, Merete. (2020) Silicon carbide formation from methane and silicon monoxide. Scientific Reports
    Academic article
  • Broggi, Andrea; Tangstad, Merete; Ringdalen, Eli. (2019) Characterization of a Si-SiO2 Mixture Generated from SiO(g) and CO(g). Metallurgical and Materials Transactions B
    Academic article
  • Myklebust, Håkon Aleksander; Tangstad, Merete. (2019) Simulation of Electrical Current Paths in a MnFerroalloy Furnace. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2019) Dynamic Current and Power Distributions in a Submerged Arc Furnace. The Minerals, Metals & Materials Series
    Academic article
  • Kalenga, M; Tangstad, Merete; Pan, X. (2019) Phase Relations in Ferromanganese Production During Prereduction: South African Ores. Metallurgist (New York)
    Academic article
  • Tangstad, Merete; Safarian, Jafar; Bao, Sarina; Ringdalen, Eli; Valderhaug, Aasgeir. (2019) Reaction Rates of 2SiO2+SiC=3SiO+CO in Pellets at Elevated Temperatures. Aspects in Mining & Mineral Science (AMMS)
    Academic article
  • Ramos, Diego Correa; Carneiro, Angélica de Cássia Oliveira; Tangstad, Merete; Saadieh, Raghed; Pereira, Bárbara Luísa Corradi. (2019) Quality of Wood and Charcoal from Eucalyptus Clones for Metallurgical Use. Floresta e Ambiente
    Academic article
  • Jiao, Jianmeng; Safarian, Jafar; Grorud, Bettina; Tangstad, Merete. (2019) High Temperature Interaction of Si-B Alloys with Graphite Crucible in Thermal Energy Storage Systems. Materials
    Academic article
  • Larssen, Trine Asklund; Kero, Ida; Tangstad, Merete. (2019) Energy Distribution in HC FeMn and SiMn - Energy vs Exergy Analyses . The Southern African Journal of Mining and Metallurgy
    Academic article
  • Aarnæs, Trygve Storm; Tangstad, Merete. (2019) Effect of H2 on SiO and SiC formation. Építőanyag - Journal of Silicate Based and Composite Materials
    Academic article
  • Heimo, Juhani; Jokilaakso, Ari; Kekkonen, Marko; Tangstad, Merete; Støre, Anne. (2019) Thermal conductivity of titanium slags. Metallurgical Research and Technology
    Academic article
  • Jiao, Jianmeng; Grorud, Bettina; Sindland, Caroline; Safarian, Jafar; Tang, Kai; Sellevoll, Kathrine. (2019) The Use of Eutectic Fe-Si-B Alloy as a Phase Change Material in Thermal Energy Storage Systems. Materials
    Academic article
  • Kim, Pyunghwa; Larssen, Trine Asklund; Tangstad, Merete. (2019) Reduction rates of MnO and SiO2 in SiMn slags between 1500 and 1650°C. The Southern African Journal of Mining and Metallurgy
    Academic article
  • Li, Xiang; Tangstad, Merete. (2018) The Influence of Sulfur Content on the Carbothermal Reduction of SiMn Slag. Metallurgical and Materials Transactions B
    Academic article
  • Mwana Bute Ngoy, D; Kalenga wa Kalenga, M; Tangstad, Merete. (2018) Effect of Charge Basicity of Two Compositions on MnO Reduction During Smelting Ferromanganese. Metallurgist (New York)
    Academic article
  • Datas, Alejandro; Cristobal, Ana Belen; del Cañizo, Carlos; Antolin, Elisa; Beaughon, Michel; Nikolopoulos, Nikolaos. (2018) AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion. AIP Conference Proceedings
    Academic article
  • Kim, Pyunghwa; Tangstad, Merete. (2018) Kinetic Investigations of SiMn Slags From Different Mn Sources. Metallurgical and Materials Transactions B
    Academic article
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Simulation of the Ferrosilicon Process Using Small-Scale Laboratory Furnace. International Ferroalloys Congress INFACON : Proceedings
    Article in business/trade/industry journal
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Cavity Formation in Silicon Furnaces. Silicon for the Chemical and Solar Industry XIV Proceedings
    Article in business/trade/industry journal
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2018) Thermodynamics of Boron Removal from Silicon Using CaO-MgO-Al2O3-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Effect of carbide configuration on the current distribution in submerged arc furnaces for silicon production?A modelling approach. The Minerals, Metals & Materials Series
    Academic article
  • van Staden, Yolindi; Beukes, Johan Paul; van Zyl, Pieter Gideon; Ringdalen, Eli; Tangstad, Merete; Kleynhans, Ernst L.J.. (2018) Damring formation during rotary kiln chromite pre-reduction: Effects of pulverized carbonaceous fuel selection and partial pellet melting. Metallurgical and Materials Transactions B
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Dynamic Current Distribution in the Electrodes of Submerged Arc Furnace Using Scalar and Vector Potentials. Lecture Notes in Computer Science (LNCS)
    Academic article
  • Vadon, Mathieu; Sortland, Øyvind Sunde; Nuta, Ioana; Chatillon, Christian; Tangstad, Merete; Chichignoud, Guy. (2018) CFD Modeling of boron removal from liquid silicon with cold gases and plasma. Metallurgical and Materials Transactions B
    Academic article
  • Vadon, Mathieu; Sortland, Øyvind Sunde; Tangstad, Merete; Chichignoud, Guy; Delannoy, Yves. (2018) Passivation Threshold for the Oxidation of Liquid Silicon and Thermodynamic Non-equilibrium in the Gas Phase. Metallurgical and Materials Transactions B
    Academic article
  • du Preez, S.P; Beukes, Paul; van Zyl, Peter; Tangstad, Merete; Tiedt, LR. (2018) Silicon Carbide Formation Enhanced by In-Situ-Formed Silicon Nitride: An Approach to Capture Thermal Energy of CO-Rich Off-Gas Combustion. Metallurgical and Materials Transactions B
    Academic article
  • Tesfahunegn, Yonatan; Magnusson, Tordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) Effect of electrode shape on the current distribution in submerged arc furnaces for silicon production - A modelling approach. Symposium series - Southern African Institute of Mining and Metallurgy
    Academic article
  • Li, Fei; Tangstad, Merete. (2018) Kinetic modeling of the reaction rate for quartz and carbon pellet. Metallurgical and Materials Transactions B
    Academic article
  • Li, Fei; Tangstad, Merete; Ringdalen, Eli. (2018) Carbothermal reduction of quartz and carbon pellets at elevated temperatures. Metallurgical and Materials Transactions B
    Academic article
  • Kim, Pyunghwa; Larssen, Trine Asklund; Kawamoto, Ryosuke; Tangstad, Merete. (2017) Empirical Activation Energies of MnO and SiO2 Reduction in SiMn Slags Between 1500 and 1650 °C. The Minerals, Metals & Materials Series
    Academic article
  • Li, Fei; Tangstad, Merete. (2017) Carbothermal Reduction of Quartz with Carbon from Natural Gas. Metallurgical and Materials Transactions B
    Academic article
  • Tangstad, Merete; Ringdalen, Eli; Manilla, Edmundo; Davila, Daniel. (2017) Pilot Scale Production of Manganese Ferroalloys Using Heat-Treated Mn-Nodules. JOM
    Academic article
  • Polkowski, Wojciech; Sobczak, Natalia; Nowak, Rafal; Kudyba, Artur; Bruzda, Grzegorz; Polkowska, Adelajda. (2017) Wetting Behavior and Reactivity of Molten Silicon with h-BN Substrate at Ultrahigh Temperatures up to 1750 °C. Journal of materials engineering and performance (Print)
    Academic article
  • Bao, Sarina; Syvertsen, Martin; Nordmark, Arne; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2016) Plant scale investigation of liquid aluminium filtration by Al2O3 and SiC ceramic foam filters. The Minerals, Metals & Materials Series
    Academic article
  • Steenkamp, JD; Pistorius, P Chris; Tangstad, Merete. (2015) Wear mechanisms of carbon-based refractory materials in SiMn tap-holes—part II: in situ observation of cemical reactions. Metallurgical and Materials Transactions B
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2015) Thermodynamic Activities and Distributions of Calcium and Magnesium Between Silicon and CaO-MgO-SiO2 Slags at 1873 K (1600 °C). Metallurgical and Materials Transactions B
    Academic article
  • Steenkamp, JD; Pistorius, PC; Tangstad, Merete. (2015) Chemical wear analysis of a tap-hole on a SiMn production furnace. The Southern African Journal of Mining and Metallurgy
    Academic article
  • Steenkamp, Joalet Dalene; Pistorius, Petrus Chris; Tangstad, Merete. (2015) Wear mechanisms of carbon-based refractory materials in silicomanganese tap holes—part I: equilibrium calculations and slag and refractory characterization. Metallurgical and Materials Transactions B
    Academic article
  • Sortland, Øyvind Sunde; Tangstad, Merete. (2014) Boron Removal from Silicon Melts by H2O/H2 Gas Blowing: Mass Transfer in Gas and Melt. Metallurgical and Materials Transactions E
    Academic article
  • Kline, Jeffery; Tangstad, Merete; Tranell, Gabriella. (2014) A Raman Spectroscopic Study of the Structural Modifications Associated with the Addition of Calcium Oxide and Boron Oxide to Silica. Metallurgical and Materials Transactions B
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Erratum to: Distribution of boron between silicon and CaO-MgO-Al2O3-SiO2 slags. Metallurgical and Materials Transactions B
    Errata
  • Tang, Kai; Løvvik, Ole Martin; Safarian-Dastjerdi, Jafar; Ma, Xiang; Tangstad, Merete. (2014) Removal of Phosphorus in Metallurgical Silicon by Rare Earth Elements. Metallurgical and Materials Transactions E
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2014) The interactions of carbon and nitrogen in liquid silicon. High Temperature Materials and Processes
    Academic article
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Distribution of Boron Between Silicon and CaO-MgO-Al2O3-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Turkova, Kira; Slizovskiy, Dmitry; Tangstad, Merete. (2014) Co reactivity and porosity of manganese materials. ISIJ International
    Academic article
  • Ksiazek, Michal Tomasz; Tangstad, Merete; Dalaker, Halvor; Ringdalen, Eli. (2014) Reduction of SiO2 to SiC using natural gas. Metallurgical and Materials Transactions E
    Academic article
  • Bao, Sarina; Syvertsen, Martin; Nordmark, Arne; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2013) Plant Scale Investigation of Liquid Aluminium Filtration by Al2O3 and SiC Ceramic Foam Filters. Light Metals
    Academic article
  • Tangstad, Merete. (2013) Kobberprosessen i pepperkakeform. Arbeidets Rett
    Popular scientific article
  • Tangstad, Merete. (2013) Back to BASIC. International Innovation
    Popular scientific article
  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete. (2013) Thermodynamic and Kinetic Behavior of B and Na Through the Contact of B-Doped Silicon with Na2O-SiO2 Slags. Metallurgical and Materials Transactions B
    Academic article
  • Tang, Kai; Andersson, Stefan; Nordstrand, Erlend Fjøsne; Tangstad, Merete. (2012) Removal of Boron in Silicon by H2-H2O Gas Mixtures. JOM
    Academic article
  • Nordstrand, Erlend Fjøsne; Tangstad, Merete. (2012) Removal of boron from silicon by moist hydrogen gas. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete. (2012) Thermodynamic activities in silicon binary melts. Journal of Materials Science
    Academic article
  • Kadkhodabeigi, Mehdi; Safarian-Dastjerdi, Jafar; Tveit, Halvard; Tangstad, Merete; Johansen, Stein Tore. (2012) Removal of SiC particles from solar grade silicon melts by imposition of high frequency magnetic field. Transactions of Nonferrous Metals Society of China
    Academic article
  • Bao, Sarina; Kvithyld, Anne; Tang, Kai; Engh, Thorvald Abel; Tangstad, Merete. (2012) WETTABILITY OF ALUMINIUM WITH ALUMINIUM CARBIDE (GRAPHITE) IN ALUMINIUM FILTRATION. Light Metals
    Academic article
  • Bao, Sarina; Engh, Thorvald Abel; Syvertsen, Martin; Kvithyld, Anne; Tangstad, Merete. (2012) Inclusion (particle) removal by interception and gravity in ceramic foam filters. Journal of Materials Science
    Academic article
  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete. (2012) Processes for upgrading metallurgical grade silicon to solar grade silicon. Energy Procedia
    Academic article
  • Tang, Kai; Tangstad, Merete. (2012) A thermodynamic description of the Si-rich Si-Fe system. Acta Metallurgica Sinica (English Letters)
    Academic article
  • Bao, Sarina; Tang, Kai; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2012) Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration. Transactions of Nonferrous Metals Society of China
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2012) Vacuum refining of molten silicon. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2012) Kinetics and Mechanism of Phosphorus Removal from Silicon in Vacuum Induction Refining. High Temperature Materials and Processes
    Academic article
  • Øvrelid, Eivind Johannes; Tangstad, Merete; Tranell, Gabriella; Lohne, Otto; Ceccaroli, Bruno. (2012) New advances in metallurgical solar grade silicon based on recent Norwegian research activities. Physica Status Solidi. C, Current topics in solid state physics
    Academic article
  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete. (2011) Liquidus of Silicon Binary Systems. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2011) Phase diagram study of the Si-P system in Si-rich region. Journal of Materials Research
    Academic article
  • Zheng, Song-sheng; Engh, Thorvald Abel; Tangstad, Merete; Luo, Xue-tao. (2011) Separation of Phosphorus from silicon by induction vacuum refining. Separation and Purification Technology
    Academic article
  • Zheng, Song-sheng; Safarian, Jafar; Seok, Seongho; Kim, Sungwook; Tangstad, Merete; Luo, Xue-tao. (2011) Elimination of phosphorus vaporizing from molten silicon at finite reduced pressure. Transactions of Nonferrous Metals Society of China
    Academic article
  • Bao, Sarina; Tang, Kai; Kvithyld, Anne; Tangstad, Merete; Engh, Thorvald Abel. (2011) Wettability of Aluminum on Alumina. Metallurgical and Materials Transactions B
    Academic article
  • Zheng, Song-sheng; Engh, Thorvald Abel; Tangstad, Merete; Luo, Xue-tao. (2011) Numerical Simulation of Phosphorus Removal from Silicon by Induction Vacuum Refining. Metallurgical and Materials Transactions A
    Academic article
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2010) Wetting Properties of Molten Silicon with Graphite Materials. Metallurgical and Materials Transactions A
    Academic article
  • Ringdalen, Eli; Gaal, S.; Tangstad, Merete; Ostrovski, Oleg. (2010) Ore melting and reduction in silicomanganese production. Metallurgical and Materials Transactions B
    Academic article
  • Ciftja, A.; Engh, Thorvald Abel; Tangstad, Merete. (2010) A model of foam filters. Metallurgical and Materials Transactions B
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2010) Boron - nitrogen interactions in liquid silicon. Conference record of the Photovoltaic Specialists Conference
    Academic article
  • Sørensen, Bjørn Eske; Gaal, Sean; Ringdalen, Eli; Tangstad, Merete; Kononov, Ring; Ostrovski, Oleg. (2010) Phase compositions of manganese ores and their change in the process of calcination. International Journal of Mineral Processing
    Academic article
  • Brynjulfsen, Ingvild; Bakken, Astrid; Tangstad, Merete; Arnberg, Lars. (2010) Influence of oxidation on the wetting behavior of liquid silicon on Si3N4-coated substrates. Journal of Crystal Growth
    Academic article
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2010) A model of foam filters. Metallurgical and Materials Transactions B
    Academic article
  • Tang, Kai; Øvrelid, Eivind Johannes; Tranell, Gabriella; Tangstad, Merete. (2009) Critical assessment of the impurity diffusivities in solid and liquid silicon. JOM
    Academic article
  • Eidem, P.A.; Tangstad, Merete; Bakken, Jon Arne. (2009) Electrical conditions of a coke bed in SiMn production. Canadian metallurgical quarterly
    Academic article
  • Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete; Tranell, Gabriella. (2009) Kinetics and mechanism of the simultaneous carbothermic reduction of FeO and MnO from high-carbon ferromanganese slag. Metallurgical and Materials Transactions B
    Academic article
  • Safarian, Jafar; Tangstad, Merete. (2009) Wettability of silicon carbide by CaO-SiO2 slags. Metallurgical and Materials Transactions B
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2009) Time and temperature dependence of the solubility of carbon in liquid silicon equilibrated with silicon carbide and its dependence on boron levels. Materials transactions
    Academic article
  • Eidem, Per Anders; Runde, Magne; Tangstad, Merete; Bakken, Jon Arne; Zhou, Z. Y.; Yu, A. B.. (2009) Effect of contact resistance on bulk resistivity of dry coke beds. Metallurgical and Materials Transactions B
    Academic article
  • Ciftja, A; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, A.; Øvrelid, E.J.. (2009) Removal of inclusions from silicon. JOM
    Academic article
  • Tang, K.; Øvrelid, E.J.; Tranell, Gabriella; Tangstad, Merete. (2009) A thermochemical database for the solar cell silicon materials. Materials transactions
    Academic article
  • Dalaker, Halvor; Tangstad, Merete. (2009) Temperature dependence of the solubility of nitrogen in liquid silicon equilibrated with silicon nitride. Materials transactions
    Academic article
  • Safarian-Dastjerdi, Jafar; Tranell, Gabriella; Tangstad, Merete; Kolbeinsen, Leiv; Gaal, Sean; Kaczorowski, Jakub. (2008) Reduction kinetics of MnO from high-carbon ferromanganese slags by carbonaceous materials in Ar and CO atmospheres. Metallurgical and Materials Transactions B
    Academic article
  • Eidem, Per Anders; Tangstad, Merete; Bakken, Jon Arne. (2008) Determination of electrical resistivity of dry coke beds. Metallurgical and Materials Transactions B
    Academic article
  • Gaal, Sean; Berg, K.; Tranell, G.; Olsen, Sverre E.; Tangstad, Merete. (2004) An investigation into aspects of liquid phase reduction of manganese and silica containing slag. International Conference on Molten Slags Fluxes and Salts : Proceedings
    Academic article
  • Olsen, Sverre E.; Tangstad, Merete. (2004) Silicomanganese Production - Process Understanding. Proceedings / INFACON
    Academic article
  • Ostrovski, Oleg; Olsen, Sverre E.; Yastreboff, Michael; Tangstad, Merete. (2002) Kinetic Modelling of MnO Reduction from Manganese Ore. Canadian metallurgical quarterly
    Academic article

Books

  • Tangstad, Merete; Rong, Harry Morten; Valderhaug, Aasgeir; Andersen, Birger; Page, Ingrid Gamst. (2024) Proceedings of the Silicon for the Chemical and Solar Industry XVII (SCSI-2024). Elsevier Social Science Research Network (SSRN) (2)
    Academic anthology/Conference proceedings
  • Andresen, Birger; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2020) Silicon for the Chemical and Solar Industry XV. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Tangstad, Merete. (2020) Silicon for the Chemical and Solar Industry XV. NTNU
    Academic anthology/Conference proceedings
  • Jiao, Jianmeng; Grorud, Bettina; Safarian, Jafar; Tangstad, Merete. (2019) WETTABILITY OF MOLTEN Fe-Si-B ALLOY ON GRAPHITE, Al2O3, AND h-BN SUBSTRATES. Liquid Metal Processing & Casting Conference 2019
    Academic anthology/Conference proceedings
  • Andresen, Birger; Nygaard, Lars; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2018) Silicon for the Chemical and Solar Industry XIV. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Nygård, Lars; Pachaly, Bernd; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard; Page, Ingrid Gamst. (2016) Silicon for the Chemical and Solar Industry XIII. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Øye, Harald Arnljot; Brekken, H.; Nygaard, Lars; Rong, Harry Morten; Tangstad, Merete; Tveit, Halvard. (2014) Silicon for the Chemical and Solar Industry XII. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Academic anthology/Conference proceedings
  • Ciftja, Arjan; Tangstad, Merete; Engh, Thorvald Abel. (2008) Wettability of silicon with refractory materials: A review. NTNU Trykk
    Academic anthology/Conference proceedings
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete. (2008) Refining and recycling of silicon: A review. NTNU Trykk
    Academic anthology/Conference proceedings
  • Olsen, Sverre E.; Tangstad, Merete; Lindstad, Tor. (2007) Production of manganese ferroalloys. Tapir Akademisk Forlag Tapir Akademisk Forlag
    Academic monograph

Part of book/report

  • Rimal, Vishal; Tangstad, Merete. (2024) Flow investigation of multiphase manganese slags. The Australasian Institute of Mining and Metallurgy
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Schanche, Trygve Lindahl; De Preez, Faan. (2023) Use of H2 in Mn-Ferroalloy Production. Springer
    Academic chapter/article/Conference paper
  • Folstad, Marit Buhaug; Jusnes, Karin Fjeldstad; Tangstad, Merete. (2023) Investigation of slag and condensate from the charge top in a FeSi75 furnace. Springer
    Academic chapter/article/Conference paper
  • Hoover, Haley; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Electrical Resistivity of Transformed Carbon Materials in the Silicon Furnace. Springer
    Academic chapter/article/Conference paper
  • Folstad, Marit Buhaug; Ksiazek, Michal Tomasz; Tangstad, Merete. (2020) Slag in the Tapping Area in a Si Furnace.
    Academic chapter/article/Conference paper
  • Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne. (2019) Slag-metal interactions in the FeMn tapping process: Interfacial properties and wetting.
    Academic chapter/article/Conference paper
  • Broggi, Andrea; Tangstad, Merete. (2018) Small scale experiments simulating condensation of SiO and CO in silicon furnace. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Cracks, Disintegration and Phases Transformations in Quartz. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Saadieh, Raghed; Tangstad, Merete; Wegge, Harald. (2018) Cavity formation in silicon furnaces. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2018) Formation of elemental silicon in β-SiC par. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Polkowski, Wojciech; Sobczak, Natalia; Tangstad, Merete; Safarian, Jafar; Jiao, Jian Meng; Grorud, Bettina. (2018) Silicon and silicon-boron alloys as phase change materials in thermal energy storage units. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Beukes, Paul; Steenkamp, Joalet Dalene; Ringdalen, Eli. (2018) Chapter 14: Coal-based reducing agents in ferroalloys and silicon production. Woodhead Publishing Limited
    Chapter
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Phase Transformations from Quartz to Cristobalite. Springer Nature
    Academic chapter/article/Conference paper
  • Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2018) Gaseous reduction of Mn ores in CO-CO2 atmosphere. Springer Nature
    Academic chapter/article/Conference paper
  • Letout, Sebastien Romain; Ratvik, Arne Petter; Tangstad, Merete; Johansen, Stein Tore; Olsen, Jan Erik. (2017) A multiscale numerical approach of the dripping slag in the coke bed zone of a pilot scale Si-Mn furnace. SINTEF akademisk forlag
    Academic chapter/article/Conference paper
  • Li, Fei; Tangstad, Merete. (2016) Use of agglomerated raw materials in Si production. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2016) Phase transformations in quartz and it's effect on furnace operation. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Ksiazek, Michal; Tangstad, Merete; Ringdalen, Eli. (2016) Five furnaces five different sto. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Li, Fei; Tangstad, Merete; Solheim, Ingeborg. (2015) Quartz and Carbon Black Pellets for Silicon Production.
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Ringdalen, Eli; Ichihara, K. (2015) Pretreatment unit in ferromanganese production.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete; Brynjulfsen, Thomas. (2015) Melting Behaviour of Mn sources - effect on furnace performance.
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Ksiazek, Michal Tomasz; Andersen, Jan Erlend. (2014) Zones and materials in the Si furnace. Norges teknisk-naturvitenskapelige universitet
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Brynjulfsen, Thomas; Ringdalen, Eli. (2014) Reduction of agglomerated manganese ores in a 150 kW pilot scale furnace. John Wiley & Sons
    Academic chapter/article/Conference paper
  • Ladam, Yves; Tangstad, Merete; Ravary, B. (2013) Energy mapping of industrial ferroalloy plants.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2013) Study of SiMn production in Pilot Scale experiments – Comparing Carajas sinter and Assmang ore.
    Academic chapter/article/Conference paper
  • Ksiazek, Michal; Mánik, Tomás; Tangstad, Merete; Ringdalen, Eli. (2013) The thermal diffusivity of raw materials for ferromanganese production.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2012) Reaction Mechanisms in Carbothermic Production of Silicon, Study of Selected Reactions. John Wiley & Sons
    Academic chapter/article/Conference paper
  • Bao, Sarina; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2011) Wettability of Aluminium with SiC and Graphite in Aluminium Filtration. Wiley-Blackwell
    Academic chapter/article/Conference paper
  • Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2011) The thermophysical properties of raw materials for ferromanganese production.
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete. (2011) Pyrometallurgical Research at SINTEF and NTNU in Norway.
    Academic chapter/article/Conference paper
  • Kline, Jeffery; Tangstad, Merete; Tranell, Gabriella. (2010) Effects of calcium oxide on the silicate structure during slag refining of silicon: a Raman spectroscopic study.
    Academic chapter/article/Conference paper
  • Safarian, Jafar; Tangstad, Merete. (2010) Vacuum behaviour of the dissolved elements in molten silicon. Tapir Akademisk Forlag
    Academic chapter/article/Conference paper
  • Tangstad, Merete; Leroy, Delphine; Ringdalen, Eli. (2010) Behaviour of agglomerates in ferromanganese production.
    Academic chapter/article/Conference paper
  • Sørensen, Bjørn Eske; Gaal, S.; Tangstad, Merete; Ringdalen, Eli; Kononov, Ring; Ostrovski, Oleg. (2010) Properties of manganese ores and their change in the process of calcination.
    Academic chapter/article/Conference paper
  • Gaal, Sean; Tangstad, Merete; Ravary, Benjamin; Ringdalen, Eli. (2010) Recycling of sludge from the production of manganese.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Øvrelid, E.J.; Tangstad, Merete; Engh, Thorvald Abel; Fejzo, A.. (2009) Settling of particles in molten silicon before directional casting of a solar grade silicon ingot.
    Academic chapter/article/Conference paper
  • Bao, Sarina; Kvithyld, A.; Gaal, S.; Engh, Thorvald Abel; Tangstad, Merete. (2009) Wetting of pure aluminum on filter materials graphite, AlF3 and Al2O3.
    Academic chapter/article/Conference paper
  • Øvrelid, E.J.; Tang, K.; Engh, Thorvald Abel; Tangstad, Merete. (2009) Feedstock. Springer
    Academic chapter/article/Conference paper
  • Ringdalen, Eli; Tangstad, Merete; Gaal, S. (2009) Initial melting and Reduction of Ore and Fluxes at the Top of the Coke Bed during SiMn-production.
    Academic chapter/article/Conference paper
  • Gaal, S; Ringdalen, Eli; Vaganov, Danil; Tangstad, Merete. (2009) Melting phenomenon of manganese bearing ores.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, Anne. (2008) Recycling of solar cell silicon scrap by filtration.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Øvrelid, E. J.; Tangstad, Merete; Engh, Thorvald Abel. (2008) Settling of solid particles in molten silicon as a refining step from metallurgical grade to solar grade silicon.
    Academic chapter/article/Conference paper
  • Ciftja, Arjan; Engh, Thorvald Abel; Tangstad, Merete; Kvithyld, Anne. (2008) Recycling of silicon scrap by filtration.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2008) The Solubility Of Carbon In Liquid Silicon And Its Dependence On The Boron Levels.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2008) TIME AND TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF CARBON IN LIQUID SILICON.
    Academic chapter/article/Conference paper
  • Eidem, Per Anders; Tangstad, Merete; Bakken, Jon Arne. (2007) Measurement of material resistivity and contact resistance of metallurgical coke. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Dalaker, Halvor; Tangstad, Merete. (2007) EFFECTIVE DISTRIBUTION COEFFICIENT OF BORON IN MULTICRYSTALLINE SOLAR GRADE SILICON.
    Academic chapter/article/Conference paper
  • Tang, Kai; Tangstad, Merete. (2007) Modeling viscosities of ferromanganese slags. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Ishak, R.J.; Tangstad, Merete. (2007) Degree of prereduction without coke consumption in industrial furnaces. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Monsen, Bodil; Tangstad, Merete; Solheim, I.; Syvertsen, M.; Ishak, R.J.; Midtgaard, H.. (2007) Charcoal for manganese alloy production. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Gaal, Sean; Lou, Dechun; Wasbø, Stein; Ravary, Benjamin; Tangstad, Merete. (2007) Melting phenomena in ferromanganese production. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Tranell, Gabriella; Gaal, Sean; Lu, D.; Tangstad, Merete; Safarian Dastjerdi, Jaafar. (2007) Reduction kinetics of manganese oxide from HC FeMn slags. Macmillan Publishers Ltd.
    Academic chapter/article/Conference paper
  • Monsen, Bodil Elisabeth; Tangstad, Merete; Midtgaard, Håvard. (2004) Use of Charcoal in Silicomanganese Production.
    Academic chapter/article/Conference paper

Report

  • Kristiansen, Save; Tangstad, Merete. (2023) Dissolution Rate and Wettability of SiO2-CaO-Al2O3 Slags on Quartz. NTNU
    Masters thesis
  • Forberg, Sigmund; Tangstad, Merete. (2023) Reduction of SiMn slags - Comparing Coke and Charcoal as Reductants. NTNU
    Masters thesis
  • Folstad, Marit Buhaug; Tangstad, Merete; Ringdalen, Eli; Einarsrud, Kristian Etienne. (2023) Slag and its effect on Si and FeSi production. NTNU
    Doctoral dissertation
  • Nordhus, Astrid; Ringdalen, Eli; Tangstad, Merete. (2022) Modelling Gas Flow in Furnaces for Si Production. NTNU
    Masters thesis
  • Bauman, Jesper; Tangstad, Merete. (2022) Wetting properties and interactions between SiO2-CaO-Al2O3 slag and SiC. NTNU
    Masters thesis
  • Solhaug, Emma; Tangstad, Merete. (2022) Methods for K-impregnation of carbon materials and their effect on the CO2 reactivity. NTNU
    Masters thesis
  • Tangstad, Merete; Larsen, Marius Hansen. (2022) Densification of charcoal by thermal decomposition of methane. NTNU
    Masters thesis
  • SOLHAUG, Emma; Tangstad, Merete. (2021) Densified biocarbon and the effect of potassium. NTNU
    Report
  • Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2020) Prereduction of Comilog- and Nchwaning ore. NTNU
    Doctoral dissertation
  • Pedersen, Tommy Andre; Tangstad, Merete. (2020) Electrical Resistivity in Carbon Materials Converting to SiC. NTNU
    Masters thesis
  • Sindland, Caroline; Tangstad, Merete. (2020) Production Rate of SiO Gas from Industrial Quartz and Silicon. NTNU
    Masters thesis
  • Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2020) Phase transformation and thermal degradation in industrial quartz. NTNU
    Doctoral dissertation
  • Sindland, Caroline; Tangstad, Merete. (2020) Production rate of SiO gas from industrial quartz and silicon . NTNU
    Masters thesis
  • Jayakumari, Sethulakshmy; Tangstad, Merete. (2020) Formation and Characterization of β- and α-Silicon Carbide Produced During Silicon/Ferrosilicon Process. Department of Materials Science and Engineering, Norwegian University of Science and Technology
    Doctoral dissertation
  • Kim, Pyunghwa; Tangstad, Merete. (2018) Reduction Rates of SiMn Slags from Various Raw Materials. NTNU
    Doctoral dissertation
  • Ngoy, Didier; Tangstad, Merete; Kalenga, Michel. (2018) Reduction Rate of MnO from Two Based Charges producing Ferromanganese. University of Johannesburg
    Masters thesis
  • Hustad, Hanne Mette; Tangstad, Merete. (2018) Tapping of FeSi Furnaces. NTNU
    Masters thesis
  • Hustad, Hanne Mette; Tangstad, Merete. (2017) The effect of FexOy on Al2O3 – CaO – SiO2 slag systems. International Student Seminar in Stockholm
    Report
  • Larssen, Trine; Tangstad, Merete. (2017) Reduction of MnO and SiO2 from Comilog and Assman based slags. NTNU
    Masters thesis
  • Tangstad, Merete; Holm, Katrine. (2017) The properties of calcined anthracite. NTNU
    Masters thesis
  • Olsen, Håkon Aleksander Hartvedt; Tangstad, Merete. (2016) A theoretical study on the reaction rates in the SiMn-production process. Norwegian University of Science and Technology
    Masters thesis
  • Sortland, Øyvind Sunde; Tangstad, Merete. (2015) Boron removal from silicon by steam and hydrogen. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Tangstad, Merete; Ni, Feng. (2015) Kinetics of the reaction between quartz and silicon carbide in different gas atmospheres. NTNU
    Masters thesis
  • Nadir, Bilal; Tangstad, Merete. (2015) Mn alloys production with the use of natural gas. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Masters thesis
  • Krokstad, Magnus; Tangstad, Merete. (2014) Elektrisk resistivitet i industrielle SiC-lag. NTNU
    Masters thesis
  • Næss, Mari K.; Tranell, Gabriella; Tangstad, Merete. (2013) Mechanisms and kinetics of liquid silicon oxidation. Doktoravhandlinger ved NTNU (145)
    Doctoral dissertation
  • Brynjulfsen, Thomas; Tangstad, Merete. (2013) Reduction of manganese ore agglomerates. NTNU-trykk
    Doctoral dissertation
  • Jakobsson, Lars Klemet; Tangstad, Merete. (2013) Distribution of boron between silicon and CaO-SiO2, MgO-SiO2, CaO-MgO-SiO2 and CaO-Al2O3-SiO2 slags at 1600°C. Doktoravhandlinger ved NTNU (326)
    Doctoral dissertation
  • Kamfjord, Nils Eivind; Tveit, Halvard; Tangstad, Merete. (2012) Mass and energy balances of the silicon process. NTNU-trykk
    Doctoral dissertation
  • Ksiazek, Michal; Tangstad, Merete. (2012) The thermophysical properties of raw materials for ferromanganese production. NTNU-trykk
    Doctoral dissertation
  • Slizovskiy, Dmitriy; Tangstad, Merete. (2012) Agglomeration in ferromanganese submerged arc furnaces with focus on K and Zn deposition. NTNU-trykk
    Doctoral dissertation
  • Sulentic, Ines; Tangstad, Merete. (2012) Removal of Boron from Silicon by Gas refining with Water and Hydrogen. NTNU
    Masters thesis
  • Røhmen, Camilla Modell; Tangstad, Merete; Olsen, Sverre E.. (2001) Melting and flow of slag and manganese ore in ferromanganese coke bed. SINTEF Materials Technology
    Report
  • Olsen, Sverre E.; Tangstad, Merete. (1999) Smeltereduksjon av HC FeMn-slagg i ASEA induksjonsovn. SINTEF Materials Technology, STF24 F99558
    Report

Product

  • Tangstad, Merete. (2020) The Norwegian Aluminium Production.
    Multimedia product

Teaching

Courses

  • TMT4155 - Heterogene likevekter og fasediagram
  • TMT4500 - Materialteknologi, fordypningsprosjekt
  • MT8218 - Avansert materialvitenskap
  • TMT4306 - Energibalanser som basis for livsløpsanalyser
  • MT8201 - Videregående metallproduksjon

Outreach

Utvikler batteri til strøm og varme

Podcast i Teknisk Sett om Thermobat og Sunson prosjektet hvor en utvikler batteri som skal produsere både strøm og varme.

2024

  • Academic lecture
    Rimal, Vishal; Tangstad, Merete. (2024) Slag flow into coke beds in Mn-furnaces. Norsk Materialteknisk Selskap - Avdeling Trøndelag Nasjonal konferanse for Materialteknologi 2024 , Trondheim, Norway 2024-08-28 - 2024-08-29
  • Academic lecture
    Kaam, Tristan Petrus Maria van; Tangstad, Merete; Lobo, Stephen Ceasar. (2024) Hydrogen reduction of ilmenite: Experimental parameters​. Centre for Environment-friendly Research (FME) HYDROGENi H2 science , Trondheim 2024-06-17 - 2024-06-18
  • Poster
    Jacob, Liyamol; Ringdalen, Eli; Tangstad, Merete; Ksiazek, Michal. (2024) SiO reduction using hydrogen. Nasjional konferanse materialteknologi 2024-08-28 - 2024-08-29
  • Poster
    Tangstad, Merete; Ringdalen, Eli; Ksiazek, Michal. (2024) SiO reduction using hydrogen. NTNU Nasjional konferranse materialteknologi , Trondheim 2024-08-28 - 2024-09-29
  • Academic lecture
    Rimal, Vishal; Tangstad, Merete. (2024) Flow investigation of multiphase manganese slags. AusIMM 12th International Conference on Molten Slags, Fluxes and Salts (MOLTEN 2024) , Brisbane 2024-06-17 - 2024-06-19
  • Academic lecture
    Mukono, Tichaona; Schanche, Trygve Lindahl; Canaguier, Vincent Yves; Wallin, Bogg Maria Elisabeth; Ringdalen, Eli; Tangstad, Merete. (2024) A Pilot Trial Investigating Use of Carbonated Ores in HCFeMnProduction. University of Science and Technology Beijing, The Chinese society for metals, China Ferroalloy industry Association The 17th international ferroalloy congress - INFACON XVII , Beijing, Kina 2024-09-18 - 2024-09-22
  • Academic lecture
    Kaam, Tristan Petrus Maria van; Tangstad, Merete; Lobo, Stephen Ceasar. (2024) Hydrogen Reduction of Ilmenite: Comparing two ores. Norsk Materialteknisk Selskap National Conference on Materials Science , Trondheim 2024-08-28 - 2024-08-29
  • Academic lecture
    Jiao, Jianmeng; Wallin, Maria; Tangstad, Merete. (2024) Manufacturing of FeSiB phase change material via aluminothermic reduction. Nasjonal konferanse for materialteknologi 2024 2024-08-28 - 2024-08-29
  • Academic lecture
    Jiao, Jianmeng; Wallin, Maria; Tangstad, Merete. (2024) Manufacturing of FeSiB high-temperature phase change material by silicothermic reduction. The12th International Conference on Molten Slags, Fluxes and Salts , Brisbane 2024-06-17 - 2024-06-19
  • Academic lecture
    Jiao, Jianmeng; Wallin, Maria; Tangstad, Merete. (2024) Aluminothermic reduction: A sustainable method for producing Fe65Si26B9 phase change material. University of Science and Technology Beijing The 17th International Ferro-Alloys Congress , Beijing, China 2024-09-18 - 2024-09-22

2023

  • Academic lecture
    Kaam, Tristan Petrus Maria van; Tangstad, Merete; Lobo, Stephen Ceasar. (2023) Hydrogen Reduction of Ilmenite: Reduction of different ores at 800 C. Hydrogeni HYDROGENi Consortium Days , Trodheim 2023-10-31 - 2023-11-01
  • Lecture
    Tangstad, Merete. (2023) Electrical resistivity of charge materials. NORCE Norwegian Research Centre AS SAFECI industrial seminar , Kristiansand 2023-03-09 - 2023-03-10
  • Programme participation
    Tangstad, Merete. (2023) Utvikler batteri for både strøm og varme. Teknisk Sett podcast Teknisk Sett podcast [Radio] 2023-07-06
  • Academic lecture
    Rimal, Vishal; Tangstad, Merete. (2023) Flow of multiphase manganese slag. KTH Royal Institute of Technology International Seminar 2023 , Stockholm 2023-11-23 - 2023-11-24
  • Academic lecture
    Tangstad, Merete. (2023) Extractive Metallurgy Education – On the rim of extinction or in the beginning of a new era ? . TMS TMS 2023 Annual Meeting & Exhibition , San Diego 2023-03-19 - 2023-03-23

2022

  • Academic lecture
    Tangstad, Merete. (2022) The Main Tool for Sustainability Analyses. THANOS INTERNATIONAL CONFERENCE ON ENHANCED USE OF THERMODYNAMIC DATA IN PYROMETALLURGY TEACHING AND RESEARCH , Johannesburg 2022-09-28 - 2022-09-29
  • Academic lecture
    Hoover, Haley; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Electrical resistivity of transformed carbon materials in the silicon furnace. TMS Furnace Tapping , Anaheim 2022-02-27 - 2022-03-03
  • Academic lecture
    Hoover, Haley; Głowacki, Meggi; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Electrical resistivity of charge materials in the Si process and its effect on energy and CO2 emissions. COM2022 , Montreal 2022-08-21 - 2022-08-24
  • Academic lecture
    Hoover, Haley; Głowacki, Meggi; Sævarsdottir, Gudrun; Tangstad, Merete. (2022) Electrical resistivity of charge materials in the Si/FeSi furnace. Silicon for the chemical and solar industry XVI , Trondheim 2022-06-14 - 2022-06-16

2021

  • Academic lecture
    Tangstad, Merete; Ringdalen, Eli; Olsen, Jan Erik; Einarsrud, Kristian Etienne; Myrhaug, Edin Henrik; Reynolds, Quinn. (2021) Conceptual Model Of Tapping Mechanisms In FeSi/Si Furnaces . NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2021) The Effect of Electrode Movements on Inductive Reactance in a Submerged Arc Furnace . NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Jesus, Leandro Gustavo de Mendes; Tangstad, Merete. (2021) Prereduction of Manganese Briquettes Produced with Tailing Dam Materials from Urucum/Brazil. NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Folstad, Marit Buhaug; Tangstad, Merete. (2021) SiO2-CaO-Al2O3 slags in Si/FeSi furnaces . NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Jusnes, Karin Fjeldstad; Hjelmseth, Roger; Folstad, Marit Buhaug; Ditlefsen, Nikolai; Tangstad, Merete. (2021) Investigation of Slag Compositions and Possible Relation to Furnace Operation of a FeSi75 Furnace . NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Ksiazek, Michal Tomasz; Saadieh, Raghed; Gaertner, Heiko; Grådahl, Svend; Sægrov, Bendik; Tangstad, Merete. (2021) Industrial measurements of the gas and temperature in Si and FeSi production process. NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Poster
    Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2021) A Raman-structure model for the viscosity of SiO2-CaO-Al2O3 system . ASMET, FEMS Euromat 2021 , Online 2021-09-13 - 2021-09-17
  • Academic lecture
    Surup, Gerrit Ralf; Smith, Nicholas Albert; Tangstad, Merete. (2021) The Properties of Carbon Blends in Submerged arc Furnaces. SINTEF/NTNU/FFF 16th International Ferro-Alloys Congress (INFACON XVI) , Trondheim 2021-09-27 - 2021-09-29
  • Academic lecture
    Ringdalen, Eli; Gjøvik, Jonas Einan; Larssen, Trine Asklund; Tangstad, Merete. (2021) Pretreatment of Manganese Ores in Different Gas-Atmospheres- a Method to Reduce Energy Consumption and Co2 Emissions in Mn-Alloy Production. NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Haraldsson, Hakon; Tesfahunegn, Yonatan; Tangstad, Merete; Saevarsdottir, Gudrun. (2021) Modelling of Electric Arcs for Industrial Applications, a Review . NTNU/SINTEF/FFF Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021 , Digitalt 2021-09-27 - 2021-09-29
  • Academic lecture
    Haghdani, Shokouh; Tangstad, Merete; Einarsrud, Kristian Etienne. (2021) An Investigation on the Relationship between Structure and Viscosity of Silicate Slags. Infacon XIV 2021-09-27 - 2021-09-29
  • Academic lecture
    Bublik, Sergey; Gouttebroze, Sylvain; Coudert, Térence; Tangstad, Merete; Einarsrud, Kristian Etienne. (2021) SlagCalculator: A Framework for Slag and Metallurgical Properties. Infacon XIV , Trondheim 2021-09-27 - 2021-09-29
  • Academic lecture
    Kaffash, Hamideh; Tangstad, Merete. (2021) The effect of densification on compressive strength of charcoal. Infacon Infacon XVI: International Ferro-Alloys Congress , Trondheim, Norge 2021-09-27 - 2021-09-29
  • Academic lecture
    Hoover, Haley; Tangstad, Merete; Sævarsdottir, Gudrun A.. (2021) Electrical Resistivity of Partially Transformed Silicon Carbide Made from Coal. INFACON XVI , Trondheim 2021-09-27 - 2021-09-29
  • Academic lecture
    Tangstad, Merete. (2021) Research through academia, research institutions and industry. ASMET, FEMS Euromat 2021 , Digitalt 2021-09-13 - 2021-09-17
  • Academic lecture
    Larssen, Trine Asklund; Tangstad, Merete. (2021) Off-gas characteristics for varying conditions in the prereduction zone of a ferromanganese furnace – a basis for energy recovery. SINTEF/NTNU/FFF INFACON XVI , Online 2021-09-27 - 2021-09-29
  • Academic lecture
    Folstad, Marit Buhaug; Yu, Han; Wang, Haijuan; Tangstad, Merete. (2021) Formation of slag in Si furnaces. Molten 2021 2021-02-21 - 2021-02-25

2020

  • Programme participation
    Tangstad, Merete. (2020) Science Forum South Africa 2020 . South Afriuca South Afriuca [Internet] 2020-12-10
  • Academic lecture
    Hoover, Haley; Pedersen, Tommy Andre; Sævarsdóttir, Gudrun A.; Tangstad, Merete. (2020) Bulk Resistivity of SiC and Carbon Materials in the Silicon Furnace. NTNU Silicon for the Chemical and Solar Industry XV , Trondheim 2020-06-15 - 2020-06-18
  • Lecture
    Broggi, Andrea; Tangstad, Merete; Ringdalen, Eli. (2020) Empirical analysis of clogging of SiC charges: effect of condensation of SiO and CO. Silicon for the Chemical and Solar Industry XV 2020-06-16 -
  • Lecture
    Canaguier, Vincent Yves; Tangstad, Merete. (2020) Foaming of silicomanganese slags, a role of sulfur?. NTNU; Norsk Materialteknisk Selskap; Norsk Metallografisk Forening; Norsk Korrosjonsteknisk Forening Nasjonal Konferanse for Materialteknologi , Online 2020-12-02 - 2020-12-03
  • Lecture
    Gjøvik, Jonas Einan; Mukono, Tichaona; Ringdalen, Eli; Wallin, Maria; Tangstad, Merete. (2020) Pilot scale production of high carbon ferromanganese. NTNU Nasjonal Konferanse for Materialteknologi , Trondheim 2020-12-02 - 2020-12-03
  • Lecture
    Tangstad, Merete. (2020) Fagdag Controlled Tapping. NTNU Fagdag mottagende industri , Trondheim 2020-08-19 -
  • Lecture
    Tangstad, Merete. (2020) Operational problems - condensation reactions, slag and SiC-accumulation. CRU CRU - Silicon market Virtual Forum 2020 , Digitalt 2020-11-12 - 2020-11-13
  • Academic lecture
    Kaffash, Hamideh; Tangstad, Merete. (2020) Densification and CO2 reactivity of charcoal. Nasjonalkonferanse Trondheim 2020 2020-12-02 - 2020-12-03
  • Academic lecture
    Larssen, Trine Asklund; Tangstad, Merete. (2020) Prereduction of manganese ores. NTNU Nasjonal konferanse i materialteknologi , Online 2020-12-02 - 2020-12-03

2019

  • Academic lecture
    Tangstad, Merete. (2019) General background pretreatment of Mn-ores. Pretreatment of mn ores 2019-02-11 - 2019-02-11
  • Academic lecture
    Bublik, Sergey; Bao, Sarina; Tangstad, Merete; Einarsrud, Kristian Etienne. (2019) Slag-metal interactions in the FeMn tapping process: Interfacial properties and wetting. TMS 2019 Liquid Metal Processing & Casting Conference , Birmingham 2019-09-08 - 2019-09-11
  • Interview
    Tangstad, Merete. (2019) Ny metode for å lagre sol og vind. Gemini.no Gemini.no [Business/trade/industry journal] 2019-05-06
  • Poster
    Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete. (2019) Evolution of SiOx shell layers on SiC-SiOx core-shell nanowires. International Conference on Silicon Carbide and Related Materials , Kyoto 2019-09-29 - 2019-10-04
  • Poster
    Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2019) Experimental study of the initial stages of manganese ferroalloy prereduction. SINTEF Energi HighEFF Annual Consortium Meeting 2019 , Trondheim 2019-05-08 - 2019-05-09
  • Lecture
    Kaffash, Hamideh; Tangstad, Merete. (2019) Dissolution rate of carbon in liquid metal. LMPC 2019 2019-09-08 - 2019-09-11
  • Academic lecture
    Aarnæs, Trygve Storm; Tangstad, Merete. (2019) EFFECT OF H2 ON SiO AND SiC FORMATION. European Conference on Silicon and Silica Based Materials The 2nd European Conference on Silicon and Silica Based Materials , Hotel Palota - Lillafüred, Erzsébet sétány 1. 2019-10-06 - 2019-10-10
  • Academic lecture
    Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2019) The effects of cristobalite formation on disintegration of quartz. The 1st European Conferance on Silica and Silica Based Materials , Miskolc 2019-10-07 - 2019-10-10

2018

  • Lecture
    Broggi, Andrea; Tangstad, Merete. (2018) Small scale experiments simulating condensation of SiO and CO in silicon furnaces. NTNU Silicon for the Chemical and Solar industry XIV , Svolvær 2018-06-11 - 2018-06-14
  • Academic lecture
    van Staden, Yolindi; Beukes, Paul; van Zyl, Peter; Ringdalen, Eli; Tangstad, Merete; Kleynhans, Ernst L.J.. (2018) Dam-ring formation in chromite pre-reduction rotary kilns – influence of pulverised carbonaceous fuel and ore composition. SAIMM Infacon 15 , Cape Town 2018-02-25 - 2018-02-28
  • Academic lecture
    Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli; Grådahl, Svend; Hustad, Hanne Mette; Holtan, Joakim. (2018) Measurement of metal temperature during tapping of an industrial FeSi furnace. Furnace tapping conference , Kruger National Park 2018-10-14 - 2018-10-17
  • Academic lecture
    Jayakumari, Sethulakshmy; Tangstad, Merete. (2018) Silicon carbide formation from coal or charcoal during Si and FeSi process. Conference , Cape town 2018-02-25 - 2018-02-28
  • Academic lecture
    Jayakumari, Sethulakshmy; Tangstad, Merete. (2018) Formation of elemental silicon in beta-SiC particles. Conference 2018-06-11 - 2018-06-14
  • Lecture
    Tangstad, Merete. (2018) Obligations and privileges of a PhD student in the SiManTi student group . SINTEF Energi AS HighEFF Annual Consortium Meeting 2018 , Trondheim 2018-05-02 -
  • Academic lecture
    Ngoy, Didier; Kalenga, Michel; Tangstad, Merete. (2018) Reduction rate of MnO from two different charge compositions in ferromanganese production process. SAIMM Infacon 15 , Cape Town 2018-02-25 - 2018-02-28
  • Academic lecture
    Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Phase Transformations from Quartz to Cristobalite. TMS, SME, MetSoc Extraction 2018 - Hays symposium , Ottawa 2018-08-26 - 2018-08-29
  • Academic lecture
    Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Cracks, Disintegration and Phases Transformations in Quartz. NTNU Silicon for the Chemical and Solar Industry XIV , Svolvær 2018-06-11 - 2018-06-14
  • Academic lecture
    Folstad, Marit Buhaug; Tangstad, Merete; Ringdalen, Eli; Fredriksli, R; Dalum, Synnøve. (2018) Tapping procedures in silicon production, and the role of female tapping operators. SAIMM Tapping Conference , Kruger 2018-10-14 - 2018-10-17
  • Lecture
    Sævarsdóttir, Gudrun A.; Tangstad, Merete. (2018) Electrical currentpaths in the Si furnace. Controlled tapping møte 2018-09-19 - 2018-09-19
  • Academic lecture
    Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli. (2018) Shock Heating of Quartz used in Silicon and Ferrosilicon Production. Infacon XV , Cape Town 2018-02-25 - 2018-02-28
  • Academic lecture
    Larssen, Trine Asklund; Tangstad, Merete; Kero, Ida. (2018) Energy Distribution in HC FeMn and SiMn - Energy vs Exergy Analyses. Infacon XV , Cape Town 2018-02-25 - 2018-02-28
  • Lecture
    Broggi, Andrea; Tangstad, Merete. (2018) Condensation of SiO and CO in silicon production - a literature review. TMS Peter Hayes Symposium Pyrometallurgical processing - Extraction 2018 , Ottawa 2018-08-26 - 2018-08-29
  • Lecture
    Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2018) The rapid Si-furnace excavation - an unique chance to investigate the interior of the furnace. INFACON XV , Cape Town 2018-02-25 - 2018-02-28
  • Lecture
    Steenkamp, Joalet; Tangstad, Merete. (2018) Overview of Furnace Tapping research at MINTEK. NTNU (IMA) Norwegian Adventure , NTNU 2018-05-18 - 2018-05-18
  • Academic lecture
    Polkowski, Wojciech; Sobczak, Natalia; Tangstad, Merete; Safarian, Jafar; Jiao, Jianmeng; Grorud, Bettina. (2018) Silicon and silicon-boron alloys as phase change materials in thermal storage units. Silicon for the Chemical and Solar Industry XIV , Svolvær 2018-06-11 - 2018-06-14
  • Academic lecture
    Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun. (2018) The Effect of Pitch Circle Diameter of Electrodes on Current Distributions in Submerged Arc Furnace. IEEE 2018 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO) , Reykjavik 2018-08-08 - 2018-08-10
  • Lecture
    Kaffash, Hamideh; Tangstad, Merete. (2018) Dissolution kinetics of carbon in Fe-Mn alloys. Infacon 2018 , Cape town 2018-02-25 - 2018-02-28
  • Lecture
    Kaffash, Hamideh; Tangstad, Merete. (2018) Dissolution of graphite in iron manganese alloys. Extraction 2018 , Ottawa 2018-08-26 - 2018-08-29

2017

  • Academic lecture
    Tangstad, Merete; Hustad, Hanne Mette. (2017) The effect of FexOy on Al2O3 – CaO – SiO2 slag systems. KTH International student seminar 2017 , Stockholm 2017-11-22 - 2017-11-23
  • Lecture
    Myrhaug, Edin; Tangstad, Merete. (2017) Lining and taphole concepts. NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Holtan, Joakim; Tangstad, Merete. (2017) Industrial theories and challenges. NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Strumpfer, Hendrik; Tangstad, Merete. (2017) Industrial theories and challenges (Glencore). NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Fatnes, Eirik; Tangstad, Merete. (2017) Industrial theories and challenges (Eramet). NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Reynolds, Quinn; Tangstad, Merete. (2017) Related work at Mintek. NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Steenkamp, Joalet Dalene; Tangstad, Merete. (2017) Summary of tapping conference. NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Kim, Pyunghwa; Larssen, Trine Asklund; Tangstad, Merete. (2017) EMPIRICAL ACTIVATION ENGERGIES OF MnO AND SiO2 REDUCTION IN SiMn SLAGS BETWEEN 1500 AND 1650 °C. TMS 17 , San Diego, CA, USA 2017-02-26 - 2017-03-03
  • Poster
    Kim, Pyunghwa; Tangstad, Merete. (2017) Reaction Mechanisms in the SiMn Process: Rate Models. SFI Spring meeting, 2017 2017-04-25 - 2017-04-26
  • Lecture
    Segapela, Nomsi; Tangstad, Merete. (2017) Study potential for tap-hole clay erosion using dynamic laboratory-scale tests. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 - 2017-05-18
  • Lecture
    Thobadi, Itumeleng; Tangstad, Merete. (2017) Study potential for tap-hole clay corrosion by FeCr alloy and slag using static wear tests. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 - 2017-05-18
  • Lecture
    Matinde, Elias; Tangstad, Merete. (2017) Overview of pyrometallurgy research at WITS. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 - 2017-05-18
  • Lecture
    Banda, Wesley; Tangstad, Merete. (2017) Chemical wear of carbon-based refractory material by SiMn alloy. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 - 2017-05-18
  • Lecture
    Ngoy, Didier; Tangstad, Merete. (2017) Reduction behaviors of South Africa Mn ores in FeMn Process. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 - 2017-05-18
  • Lecture
    Li, Xiang; Tangstad, Merete. (2017) Production of SiMn-Alloys by Natural Gas and Carbon Black. Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies, TMS 2017 , San Diego 2017-02-25 - 2017-03-02
  • Lecture
    Andresen, Birger; Tangstad, Merete. (2017) Industrial theories and challenges (Wacker). NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Academic lecture
    Tangstad, Merete; Ksiazek, Michal Tomasz; Ringdalen, Eli. (2017) Excavation of Si and FeSi furnaces. NTNU (IMA) Controlled Tapping seminar , Trondheim 2017-10-11 - 2017-10-12
  • Lecture
    Ksiazek, Michal Tomasz; Ringdalen, Eli; Tangstad, Merete. (2017) Excavations of the Si/FeSi furnaces: comparison of furnace 1 and 4 in Wacker. SFI Høstmøte 2017 2017-11-07 - 2017-11-08
  • Lecture
    Ksiazek, Michal Tomasz; Ringdalen, Eli; Tangstad, Merete. (2017) Furnace excavations:Comparison of results from FeSi 75% and FeSi 50%. Meeting with industry (Finnfjord) , Finnsnes 2017-01-16 - 2017-01-18
  • Lecture
    Letsoalo, Mmaphela; Tangstad, Merete. (2017) Characterization of tap-hole clay. NTNU (IMA) Norwegian Adventure , NTNU 2017-05-18 -
  • Lecture
    Tangstad, Merete. (2017) Carbon materials in Mn-production. NTNU (IMA) Carbon course , NTNU 2017-03-27 - 2017-03-28
  • Lecture
    Beukes, Paul; Tangstad, Merete. (2017) Carbon reduction materials in Cr-production. NTNU (IMA) Carbon course , NTNU 2017-03-27 - 2017-03-28
  • Lecture
    Steenkamp, Joalet; Tangstad, Merete. (2017) Carbon materials. NTNU (IMA) TMT4306 , NTNU 2017-09-04 - 2017-09-04

2016

  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2016) Phase transformations in quartz and it's effect on furnace operation. Silicon for the chemical and solar industry, XIII, Norway 2016 , Kristiansand 2016-06-14 - 2016-06-16
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete; Safarian, Jafar; Valderhaug, Aasgeir Mikael. (2016) Interaction of molten silica with silicon carbide in silicon process. The 10th InternationalConference on Molten Slags, Fluxes and Salts (MOLTEN16) , Seattle 2016-05-23 - 2016-05-26
  • Academic lecture
    Kim, Pyunghwa; Holtan, Joakim; Tangstad, Merete. (2016) REDUCTION BEHAVIOR OF ASSMANG AND COMILOG ORE IN THE SiMn PROCESS. TMS TMS: MOLTEN 16 , Seattle, Washinton 2016-05-21 - 2016-05-25
  • Poster
    Li, Fei; Tangstad, Merete. (2016) Behavior of Quartz and Carbon Black Pellets at Elevated Temperatures. 2016 EPD Congress,TMS2016 , Nashville 2016-02-15 - 2016-02-18
  • Lecture
    Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2016) Five furnaces five different stories. NTNU Silicon for the chemical and solar industry XIII , Kristiansand 2016-06-13 -
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2016) Softening and melting of SiO2, an important parameter for reactions with quartz in Si-production. TMS (The Minerals, Metals & Materials Society) The 10th InternationalConference on Molten Slags, Fluxes and Salts (MOLTEN16) , Seattle 2016-05-22 - 2016-05-25
  • Lecture
    Ksiazek, Michal Tomasz; Ringdalen, Eli; Tangstad, Merete. (2016) FIVE FURNACES FIVE DIFFERENT STORIES. Silicon for the chemical and solar industry XIII 2016-06-13 - 2016-06-16
  • Lecture
    Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2016) Zones and Reactions in the Si Furnace. SiManTi Seminar in Oxford 2016-09-12 - 2016-09-13
  • Academic lecture
    Li, Fei; Tangstad, Merete. (2016) Use of agglomerated raw materials in Si production. NTNU Silicon for the Chemical and Solar Industry XIII , Kristiansand 2016-06-13 - 2016-06-16

2015

  • Academic lecture
    Skjeldestad, Aslak; Tangstad, Merete; Lindstad, Lars; Larsen, Bjørnar. (2015) Temperature Profiles in Søderberg Electrodes. INFACON XIV , Kiev 2015-06-01 - 2015-06-04
  • Academic lecture
    Jayakumari, Sethulakshmy; Tangstad, Merete. (2015) Carbon Materials for Silicomanganese reduction. INFACON XIV , Kiev 2015-06-01 - 2015-06-04
  • Academic lecture
    Li, Fei; Tangstad, Merete; Solheim, Ingeborg. (2015) Quartz and Carbon Black Pellets for Silicon Production. The Fourteenth International Ferroalloys Congress(Infacon XIV) 2015-05-31 - 2015-06-04
  • Academic lecture
    Tangstad, Merete; Ringdalen, Eli; Ichihara, K. (2015) Pretreatment unit in ferromanganese production. Infacon INFACON 14 , Kiev 2015-05-31 - 2015-06-04
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete; Brynjulfsen, Thomas. (2015) Melting Behaviour of Mn sources - effect on furnace performance. INFACON INFACON 14 , Kiev 2015-05-31 - 2015-07-04

2014

  • Academic lecture
    Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Distribution of Boron, Calcium and Aluminium between Silicon and CaO-Al2O3-SiO2 Slags. The Minerals, Metals & Materials Society (TMS) TMS 2014 , San Diego, California 2014-02-16 - 2014-02-20
  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2014) Boron Removal from Silicon Melts by H2O/H2 Gas Blowing - Gas-phase Mass Transfer. TMS 2014 143rd ANNUAL MEETING & EXHIBITION 2014-02-16 - 2014-02-20
  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2014) Boron Removal from Silicon Melts by H2O/H2 Gas Blowing - Mass Transfer in Melt and Gas. Norsk Materialteknisk Selskap, Norsk Metallografisk Forening Nasjonal Konferanse for Materialteknologi NMS+NMF Sommermøte 2014-06-05 - 2014-06-05
  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2014) Boron Removal from Silicon Melts by H2O/H2 Gas Blowing - Steam Supply and Boron Removal. Norwegian Solar Cell Conference 2014 2014-05-12 - 2014-05-13
  • Poster
    Jakobsson, Lars Klemet; Tangstad, Merete. (2014) Distribution of boron between silicon and CaO-MgO-Al2O3-SiO2 slags at 1600 °C. McGill University and École Polytechnique Symposium on Advances in Computational Thermodynamics , Fairmont Le Château Montebello, Québec 2014-08-17 - 2014-08-19
  • Academic lecture
    Tangstad, Merete; Ksiazek, Michal Tomasz; Andersen, Jan Erlend. (2014) Zones and materials in the Si furnace. NTNU Silicon for the chemical and solar industry , Trondheim 2014-06-24 - 2014-06-27
  • Academic lecture
    Vangskåsen, Jørund; Tangstad, Merete. (2014) Condensate in the metallurgical silicon process-reaction mechanisms. Kazhakstan ferroalloy Infacon XIII , Almati 2014-06-04 - 2014-06-07

2013

  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2013) Removal of Boron from Silicon by Reactive Gas Refining. TMS 2013 142nd ANNUAL MEETING & EXHIBITION 2013-03-03 - 2013-03-07
  • Academic lecture
    Ksiazek, Michal; Mánik, Tomás; Tangstad, Merete; Ringdalen, Eli. (2013) The thermal diffusivity of raw materials for ferromanganese production. INFACON XIII, The 13th. International Ferroalloys Congress , Almaty 2013-06-09 - 2013-06-12
  • Academic lecture
    Jakobsson, Lars Klemet; Tangstad, Merete. (2013) Boron and calcium refining of ferrosilicon by slag treatment. Abishev Chemical-Metallurgical Institute INFACON XIII , Almaty 2013-06-09 - 2013-06-12
  • Academic lecture
    Jakobsson, Lars Klemet; Tangstad, Merete. (2013) Distribution of Boron between Silicon and CaO-MgO-SiO2 Slags. The Minerals, Metals and Materials Society TMS 2013 , San Antonio 2013-03-03 - 2013-03-07
  • Academic lecture
    Bao, Sarina; Tangstad, Merete; Tang, Kai; Ringdalen, Eli. (2013) Production of SiO Gas in the Si Process. The 13th International Ferroalloys Congress 2013-06-09 - 2013-06-12
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2013) Quarts-cristobalite transformation and its effect on reaction in Si and FeSi production. Kazhakstan Ferroalloy Infacon XIII , AlmaAti 2013-06-04 - 2014-06-07
  • Academic lecture
    Tang, Kai; Krystad, Egil; Tranell, Gabriella; Tangstad, Merete. (2013) Boron and Phosphors Distribution Equilibria among the Molten Si, Slag and Metal Phases. 2013 TMS Annual Meeting & Exhibition , San Antoine, Texas 2013-03-03 - 2013-03-07
  • Popular scientific lecture
    Tangstad, Merete. (2013) Fra sand til solceller. NTNU Researchers Night , Trondheim 2013-09-27 - 2013-09-27
  • Academic lecture
    Vangskaasen, Jørund; Tangstad, Merete. (2013) Condensate production in the silicon process. International ferroalloy conference, INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Visser, Marius; Smith, Herman; Tangstad, Merete; Ringdalen, Eli. (2013) PROPERTIES OF NCWANENG- AND GLORIA- ORE IN THE PRODUCTION OF FeMn ALLOYS. International ferroalloy conference, Infacon XIII 2013-06-09 - 2013-06-12
  • Poster
    Ladam, Yves; Tangstad, Merete; Ravary, Benjamin. (2013) ENERGY MAPPING OF INDUSTRIAL FERROALLOY PLANTS. International ferroalloy congress, INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Maroufi, Samane; Ciezki, George; Tangstad, Merete; Jahanshani, Sharif; Ostrovski, Oleg. (2013) Characterisation and reduction of high-silicon ironstone in CO gas. INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Maroufi, Samane; Ciezki, George; Tangstad, Merete; Jahanshani, Sharif; Ostrovski, Oleg. (2013) Carbothermal reduction of high-silicon ironstone ore. INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Steenkamp, Joalet; Tangstad, Merete; Pistorius, Chris; Mølnås, Håvard; Muller, Jaques. (2013) CORROSION OF TAPHOLE CARBON REFRACTORY BY CaO-MnO-SiO2-Al2O3-MgO SLAG FROM A SiMn PRODUCTION FURNACE. International ferroalloy congress, INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2013) Study of SiMn production in a pilot scale furnace - comparing Carajas sinter and Assmang ore. Infacon XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Slizovskiy, Dmitry; Tangstad, Merete. (2013) Agglomeration of charge in ferromanganese submerged arc furnaces. INFACON XIII 2013-06-09 - 2013-06-12
  • Academic lecture
    Brynjulfsen, Thomas; Tangstad, Merete. (2013) Melting and Reduction of Manganese Sinter and Pellets. INFACON XIII , Almaty 2013-06-09 - 2013-06-12
  • Academic lecture
    Kalenga, Michel; Xiaowei, P; Tangstad, Merete. (2013) Manganese Alloys Production: Impact of Chemical Compositions of Raw Materials on the Energy and Materials Balance. INFACON XIII , Almaty 2013-06-09 - 2013-06-12
  • Academic lecture
    Tang, Kai; Ringdalen, Eli; Tangstad, Merete; Olsen, Sverre E.. (2013) Potassium Distribution between Liquid Mn-Fe-C Alloys and MnO-SiO2-CaO Slags. 13th International Ferroalloys Congress , Almaty 2013-06-09 - 2013-06-12

2012

  • Academic lecture
    Safarian, Jafar; Kolbeinsen, Leiv; Tangstad, Merete. (2012) Thermodynamic Properties of the Silicon Binary Melts. TMS - The Mineral, Metals & Materials Society TMS 2012 Annual Meeting & Exhibition! , Swan and Dolphin Resort • Orlando, Florida 2012-03-11 - 2012-03-15
  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2012) B Removal from Si by Reactive Gas Refining. Norsk Metallurgisk Selskap Nasjonal Konferanse for Materialteknologi 2012-05-09 - 2012-05-10
  • Academic lecture
    Sortland, Øyvind Sunde; Tangstad, Merete. (2012) Prospects of Using Syngas for B Removal from Si. UMG-Silicon seminar , Trondheim-Tromsø, Norway 2012-04-24 - 2012-04-26
  • Academic lecture
    Jakobsson, Lars Klemet; Tangstad, Merete. (2012) Distribution of boron and calcium between silicon and calcium silicate slags. TMS 2012 , Orlando 2012-03-11 - 2012-03-15
  • Academic lecture
    Bao, Sarina; Syvertsen, Martin; Rasch, Bjørn; Kvithyld, Anne; Engh, Thorvald Abel; Tangstad, Merete. (2012) Al2O3 and SiC Ceramic Foam Filtration of Aluminium. Norsk Metallurgisk Selskap Nasjonal Konferanse for Materialteknologi , Trondheim 2012-05-09 - 2012-05-10
  • Poster
    Jakobsson, Lars Klemet; Tangstad, Merete. (2012) Determination of Boron in Silicon and Slags by HR-ICP-MS. Renewable Energy Research Conference 2012 , Trondheim 2012-04-16 - 2012-04-18
  • Academic lecture
    Tangstad, Merete; Ringdalen, Eli. (2012) Ferroalloy Research in Norway - Cooperation between Academia and Industry. TMS TMS 2012 nternational Smelting Technology Symposium: Incorporating the 6th Advances in Sulphide Smelting Symposium , Orlando 2012-03-11 - 2012-03-15
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2012) Reaction Mechanisms in Carbothermic Production of Silicon, Study of Selected Reactions. TMS TMS 2012 International Smelting Technology Symposium: Incorporating the 6th Advances in Sulphide Smelting Symposium , Orlando 2012-03-11 - 2012-03-15
  • Poster
    Tang, Kai; Ringdalen, Eli; Tangstad, Merete; Olsen, Sverre E.. (2012) Potassium Distribution between Liquid Mn-Fe-C Alloys and MnO-SiO2-CaO Slags. 13th International Ferroalloys Congress , Almaty 2012-06-09 - 2012-06-12

2011

  • Academic lecture
    Safarian, Jafar; Xakalashe, Bhole; Tangstad, Merete. (2011) Vacuum removal of the impurities from different silicon melts. 26th European Photovoltaic Solar Energy Conference and Exhibition , Hamburg 2011-09-05 - 2011-09-09
  • Academic lecture
    Jakobsson, Lars Klemet; Tangstad, Merete. (2011) Distribution of boron between molten silicon and calcium silicate slags. Fray International Symposium 2011-11-27 - 2011-12-01
  • Academic lecture
    Bao, Sarina; Engh, Thorvald Abel; Tangstad, Merete. (2011) Ceramic Foam Filtration (CFF) Efficiency Calculation Regarding Boundary Layer. Department of Materials Science and Engineering, Norwegian U PHD Al Seminar in IMT, NTNU , Trondheim 2011-01-20 - 2011-01-20
  • Academic lecture
    Xakalashe, Bhole; Tangstad, Merete. (2011) Silicon processing: from quartz to crystalline silicon solar cells. Southern African Pyrometallurgy 2011 , Johannesburg 2011-03-06 - 2011-03-09
  • Academic lecture
    Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli. (2011) The thermophysical properties of raw materials for ferromanganese production. The Southern African Institute of Mining and Metallurgy Southern African Pyrometallurgy 2011 International Conference , Johannesburg 2011-03-06 - 2011-03-09
  • Lecture
    Ringdalen, Eli; Tangstad, Merete. (2011) ROMA Resource Optimization and Recovery in the Material Industry - a Norwegian cooperation project. FFC Paris EOROMAT 2011: European Congress and Exhibition on Advanced Materials and Processes , Montpellier 2011-09-12 - 2011-09-15
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete. (2011) Pyrometallurgical Research at SINTEF and NTNU in Norway. The Southern African Institute of Mining and Metallurgy Southern African Pyrometallurgy 2011 International Conference , Johannesburg 2011-09-06 - 2011-09-09

2010

  • Academic lecture
    Safarian, Jafar; Tangstad, Merete. (2010) Slag-Carbon Reactivity. INFACON XII 2010-06-06 - 2010-06-09
  • Academic lecture
    Zheng, Song-sheng; Engh, Thorvald Abel; Tangstad, Merete; Luo, Xue-tao. (2010) A Simulation of Phosphorus Removal from Molten Silicon by Induction Vacuum Refining. NTNU/SINTEF Renewable Energy Research Conference , Trondheim 2010-06-07 - 2010-06-08
  • Academic lecture
    Slizowskiy, Dmitriy; Tangstad, Merete. (2010) The effect of potassium and zinc circulation on agglomeration of a charge in SAF. Infacon XII , Helsinki 2010-06-06 - 2010-06-09
  • Academic lecture
    Safarian, Jafar; Tangstad, Merete. (2010) Vacuum behavior of the dissolved elements in molten silicon. NTNU Silicon for the Chemical and Solar Industry X , Ålesund-Geiranger 2010-06-28 - 2010-07-02
  • Academic lecture
    Eidem, P.A.; Tangstad, Merete; Bakken, Jon Arne; Ishak, R.. (2010) Influence of coke particle size on the electrical resistivity of cokebeds. Outotec Infacon XII , Helsinki 2010-06-06 - 2010-06-09
  • Poster
    Tangstad, Merete; Ksiazek, Michal; Andersen, Vegar; Ringdalen, Eli. (2010) Small scale laboratory experiments simulating an industrial silicon furnace. Infacon XII Infacon XII , Helsinki 2010-06-06 - 2010-06-09
  • Academic lecture
    Tangstad, Merete; Leroy, Delphine; Ringdalen, Eli. (2010) Behavior of agglomerates in ferromanganese production. Outotec Infacon XII , helsinki 2010-06-06 - 2010-06-09
  • Academic lecture
    Zhang, Song-sheng; Safarian, Jafar; Seok, Seongho; Kim, Sungwook; Tangstad, Merete; Luo, Xue-tao. (2010) Elimination of Phosphorus from Si-P system by induction refining at a finite reduced pressure. The 2010 International Symposium on metallurgical purification technologies of SOG-Si 2010-09-12 - 2010-09-15
  • Academic lecture
    Sørensen, Bjørn Eske; Gaal, S.; Tangstad, Merete; Ringdalen, Eli; Kononov, Ring; Ostrovski, Oleg. (2010) Properties of manganese ores and their change in the process of calcination. Outotec Infacon XII 2010-06-06 - 2010-06-09
  • Poster
    Jakobsson, Lars Klemet; Tangstad, Merete. (2010) Distribution of Boron between Molten Silicon and Slag. Senter for fornybar energi Renewable Research Conference 2010 , NTNU 2010-06-07 - 2010-06-08
  • Academic lecture
    Bao, Sarina; Tangstad, Merete; Engh, Thorvald Abel. (2010) Wetting of Aluminium with Filter Materials. Norsk Metallurgisk Selskap Nasjonal Konferanse for Materialteknologi , Oslo 2010-06-03 - 2012-06-04
  • Academic lecture
    Gaal, S; Tangstad, Merete; Ravary, Benjamin; Ringdalen, Eli. (2010) Recycling of sludge from the production of manganese;. Australasian Institute of Mining and Metallurgy ( AusIMM ) XXV International Mineral Processing Congress (IMPC 2010) , Brisbane 2010-09-06 - 2010-09-09

2009

  • Academic lecture
    Safarian, Jafar; Tangstad, Merete; Gaal, Sean. (2009) Thermal analysis of silicon-phosphorus alloys at elevated temperatures. SINTEF/NTNU 3rd International workshop on Crystalline Silicon Solar Celles , Trondheim 2009-06-03 - 2009-06-05
  • Academic lecture
    Ringdalen, Eli; Tangstad, Merete; Gaal, S. (2009) Initial melting and Reduction of Ore and Fluxes at the Top of the Coke Bed during SiMn-production. Gecamin Molten 2009: The VIII International Conference on Molten slags, fluxes and salts , Santiago 2009-01-18 - 2009-01-21
  • Academic lecture
    Gaal, S; Ringdalen, Eli; Vaganov, Danil; Tangstad, Merete. (2009) Melting phenomenon of manganese bearing ores. Gecamin Molten 2009; VIII INternational Conference on Molten Slags, fluxes and salts , Santiago 2009-01-18 - 2009-01-21

2008

  • Poster
    Dalaker, Halvor; Tangstad, Merete. (2008) The Solubility Of Carbon In Liquid Silicon And Its Dependence On The Boron Levels. 18th NREL workshop on crystalline silicon solar cells & modules 2008-08-03 - 2008-08-06
  • Poster
    Dalaker, Halvor; Tangstad, Merete. (2008) TIME AND TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF CARBON IN LIQUID SILICON. 23rd EU-PVSEC 2008-09-01 - 2008-09-05

2007

  • Poster
    Dalaker, Halvor; Tangstad, Merete. (2007) EFFECTIVE DISTRIBUTION COEFFICIENT OF BORON IN MULTICRYSTALLINE SOLAR GRADE SILICON. 22nd European PVSEC 2007-09-03 - 2007-09-07

2001

  • Academic lecture
    Tangstad, Merete; Heiland, Bjørn; Olsen, Sverre E.; Tronstad, Ragnar. (2001) SiMn Production in a 150 kVA Pilot Scale Furnace. The Ninth International Ferroalloys Congress , Quebec City, Canada, June 3-6, 2001
  • Academic lecture
    Ostrovski, Oleg; Olsen, Sverre E.; Tangstad, Merete; Yastreboff, Michael. (2001) Kinetic Modelling of MnO Reduction from Manganese Ore. The Ninth International Ferroalloys Congress , Quebec City, Canada, June 3-6, 2001

1998

  • Academic lecture
    Olsø, Vegard; Tangstad, Merete; Olsen, Sverre E.. (1998) Reduction kinetics of MnO-saturated slags. 8th International Ferroalloys Congress, INFACON 8 , Beijing, Kina

1997

  • Academic lecture
    Tangstad, Merete; Olsen, Sverre E.. (1997) Phase relations in ferromanganese slags during melting and reduction. Molten Slags, Fluxes and Salts'97 Conference , Sydney

1995

  • Academic lecture
    Olsen, Sverre E.; Tangstad, Merete. (1995) The importance of slag basicity in the production of high carbon ferromanganese. Electric Furnace Conference , Orlando, Fla.

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