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High hardness, low Young's modulus and low friction of nanocrystalline ZrW2 Laves phase and Zr1-xWx thin films

Author
Horwat, D.; Jimenez-Pique, E.; Pierson, J.; Migot, A.; Dehmas, M.; Anglada, M.
Type of activity
Journal article
Journal
Journal of physics and chemistry of solids
Date of publication
2012-04
Volume
73
Number
4
First page
554
Last page
558
DOI
https://doi.org/10.1016/j.jpcs.2011.12.009 Open in new window
Repository
http://hdl.handle.net/2117/15849 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0022369711004343 Open in new window
Abstract
Zr1−xWx nanocrystalline films of Zr-W solid solutions and ZrW2 Laves phase were synthesized by magnetron co-sputtering. Large values of the H/E ratio up to 0.09 are observed for grain sizes in the nanometer range along with a hardness above 10 GPa and Young's modulus below 230 GPa. H/E values are correlated with the developed surface of grain boundaries suggesting an elastic deformation mostly handled by the grain boundaries. This is associated to friction coefficients comparable to those of m...
Citation
Horwat, D. [et al.]. High hardness, low Young's modulus and low friction of nanocrystalline ZrW2 Laves phase and Zr1-xWx thin films. "Journal of physics and chemistry of solids", Abril 2012, vol. 73, núm. 4, p. 554-558.
Keywords
A. Intermetallic compounds, A. Nanostructures, A. Thin films, D. Mechanical properties
Group of research
CIEFMA - Structural Integrity, Micromechanics and Materials Reliability Centre
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants