Background and activities
Nuria Espallargas (1979) is a Professor at the Department of Engineering Design and Materials. She has a MSc in Chemistry from University of Barcelona (Spain) and a PhD in Metallurgy and Materials Engineering from the same university.
She is also the NTNU leader of the Gemini Centre “Tribology” since 2012.
She has supervised 3 graduated doctoral candidates, and is currently supervising and co-supervising 8 PhD candidates and 2 postdocs.
- Surface chemistry and engineering.
- Tribology and tribocorrosion.
The main motivation is to perform basic research to understand degradation phenomena that starts on metal surfaces exposed to aggressive environment. Under these conditions metals are typically covered by oxides, which greatly affect wear and friction. The focus is to understand the degradation phenomena of materials exposed to chemo-mechanical effects.
Surface engineering is the key to add functionality to surfaces and therefore finding new solutions to materials problems by controlling their surface chemistry is the ultimate goal of my research. In addition, understanding the mechanisms at the nano, micro and macro scale is crucial to solve materials degradation therefore the other goal of my research is to perform testing across scales to design and optimise surface solutions.
I find my research relevant for different types of applications, i.e. oil&gas, drilling and tunneling, biomaterials, sports and renewable energy (wind and solar).
Main topics of research projects
- Tribocorrosion mechanisms in coatings and metals.
- Multidegradation - the interaction of tribocorrosion with fatigue.
- Nano-tribology for offshore materials.
- Coatings and surface treatments for use in tribocorrosive environments.
- Chemistry for developing new materials for thrermal spraying.
- Environmentally Acceptable Lubricants and water lubrication for offshore applications.
- Galling/adhesion mechanisms of metal forming.
- Low temperature tribology.
Recent work experience
- 2015 – 2016 Visiting Professor, Laboratory for Surface Science and Technology, Dept. of Materials, ETH, Zurich.
- 2014 – current CTO and co-founder, Seram Coatings AS.
- 2012 – current Professor, Department of Engineering Design and Materials, NTNU.
- 2009 – 2014 Scientific Advisor, SINTEF MC.
- 2015: Editor of the book “Future Development of Thermal Spray Coatings: Types, Designs, Manufacture and Applications”. Woodhead Publishing Ltd (Elsevier). ISBN 9780857097699. doi:10.1016/B978-0-85709-769-9.09987-5.
- 2015 – current: Editorial board of the journal Wear (Elsevier).
- 2014 – current: Editorial board of the Journal of Bio- and Tribo-Corrosion (Springer).
- 2014 – current: Board member of Seram Coatings AS.
- 2013: Editor of the NordTrib 2012 special issue in Wear. “Selected papers from those presented at the 15th Nordic Symposium on Tribology (Nordtrib 2012) Trondheim, June 12-15, 2012”. Wear 308 (1–2) (2013).
- Young innovator award 2015 (Norway). To the best younger entrepreneur woman of Norway in 2015.
- Nominated for the best communicator of NTNU at the “Kom Award NTNU 2015”.
- Seram Coatings AS:
- Innovator award 2015 (Norway). To the most innovative start-up of Norway in 2015.
- Academic Enterprise Award 2015. Awarded by the Science Business Standing Committee for Horizon 2020 (The EU Framework Programme for Research and Innovation).
- Adolf Øien Kapitalfond award 2014. To the most promising start-up of Mid-Norway in 2014.
Membership in Academic and Professional Organizations and Committees
- 2013 – current: Member of the International Advisory Committee of the International Tribo-corrosion Conference organized by International TriboCorrosion Network.
- 2012 – current: Member of the International Advisory Board of International Tribology Symposium of the International Federation for the Promotion of Mechanism and Machine Science.
- 2009 – current: Member of the Nordic Advisory Board of the Nordic Tribology Symposium (NordTrib).
Selected invited talks at international conferences/workshops
- July 2016: Second international workshop on understanding and controlling nano and mesoscale friction. 4-7 July, Riga, Latvia. Invited speaker: “Nano-tribocorrosion on passive metals: a new approach to investigate the role of friction in tribocorrosion mechanisms”.
- March 2016: WE-Heraeus-Seminar: Mechanisms of Tribology. 29-March to 1-April, Bad Honnef, Germany. Invited speaker: “Effect of surface oxides on friction of metals and ceramic-metallic materials”.
- June 2015: European Conference on Tribology (ECOTRIB 2015). 3-5 June, Lugano, Switzerland. Keynote: “Tribocorrosion and coatings - the unexpected behaviour”.
- January 2013: Orthopaedic Research Society (ORS) 2013 annual meeting. 26-30 January, San Antonio, USA. “Tribocorrosion in Orthopedic Implants – A New Approach to an Old Problem”.
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
- (2016) Effect of 4-point bending and normal load on the tribocorrosion-fatigue (multi-degradation) of stainless steels. Tribology International. vol. 99.
- (2016) Effect of atmosphere, temperature and carbide size on the sliding friction of self-mated HVOF WC-CoCr contacts. Tribology International. vol. 101.
- (2016) Elucidating the complex role of surface oxides formed during sliding of self-mated warm sprayed WC-CoCr in different environments. Tribology International. vol. 94.
- (2016) Tribocorrosion studies of metallic biomaterials: The effect of plasma nitriding and DLC surface modifications. Journal of The Mechanical Behavior of Biomedical Materials. vol. 63.
- (2016) Degradation of Zr-based bulk metallic glasses used in load-bearing implants: A tribocorrosion appraisal. Journal of The Mechanical Behavior of Biomedical Materials. vol. 60.
- (2015) Influence of Corrosion on the Abrasion of Cutter Steels Used in TBM Tunnelling. Rock Mechanics and Rock Engineering. vol. 48 (1).
- (2015) A metal ion release study of CoCrMo exposed to corrosion and tribocorrosion conditions in simulated body fluids. Wear. vol. 332.
- (2015) Tribocorrosion Mechanisms of Ti6Al4V in Artificial Saliva by Zero-Resistance Ammetry (ZRA) Technique. Journal of Bio- and Tribo-Corrosion. vol. 1 (8).
- (2015) Suspension Plasma Spraying of Sub-micron Silicon Carbide Composite Coatings. Journal of thermal spray technology (Print). vol. 24 (5).
- (2015) Tribological Behaviour of Thermally Sprayed Silicon Carbide Coatings. Tribology International. vol. 85.
- (2014) A Tribological Study of UHMWPE Ski Base Treated with Nano Ski Wax and its Effects and Benefits on Performance. Procedia Engineering. vol. 72.
- (2014) A new type of self-lubricated thermal spray coatings – liquid lubricants embedded in a metal matrix. Journal of thermal spray technology (Print). vol. 24 (1).
- (2014) Tribocorrosion mechanisms of NiCrMo-625 alloy: An electrochemical modeling approach. Tribology International. vol. 73.
- (2013) Liquid-Solid Self-Lubricated Coatings. Journal of thermal spray technology (Print). vol. 22 (1).
- (2013) Tribocorrosion of Pulsed Plasma-Nitrided CoCrMo Implant Alloy. Tribology letter. vol. 49 (1).
- (2013) Bulk Metallic Glasses (BMG) for biomedical applications – a tribocorrosion investigation of Zr55Cu30Ni5Al10 in simulated body fluid. Wear. vol. 301 (1-2).
- (2013) A new experimental technique for quantifying the galvanic coupling effects on stainless steel during tribocorrosion under equilibrium conditions. Wear. vol. 307 (1-2).
- (2013) The wear and lubrication performance of liquid–solid self-lubricated coatings. Surface & Coatings Technology. vol. 235.
- (2013) Thermally Sprayed SiC Coatings for Offshore Wind Turbine Bearing Applications. Journal of thermal spray technology (Print). vol. 22 (8).
- (2012) Multi-degradation behavior of austenitic and super duplex stainless steel - The effect of 4-point static and cyclic bending applied to a simulated seawater tribocorrosion system. Wear. vol. 288.