Elastic properties of 5d transition-metal carbides: An ab initio study

We have systematically studied the mechanical stability of group V transition metal carbides TMC₂ (TM=Hf, Ta, W, Re, Os, Ir, Pt, and Au) in the pyrite and fluorite phase, by calculating their elastic constants within the density functional theory scheme. It was found that all but ReC₂ and OsC₂ are s...

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Date:2015
Main Authors: Mex, L., Aguayo, A., Murrieta, G.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2015
Series:Condensed Matter Physics
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Elastic properties of 5d transition-metal carbides: An ab initio study / L. Mex, A. Aguayo, G. Murrieta // Condensed Matter Physics. — 2015. — Т. 18, № 3. — С. 33801: 1–7. — Бібліогр.: 24 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We have systematically studied the mechanical stability of group V transition metal carbides TMC₂ (TM=Hf, Ta, W, Re, Os, Ir, Pt, and Au) in the pyrite and fluorite phase, by calculating their elastic constants within the density functional theory scheme. It was found that all but ReC₂ and OsC₂ are stable in pyrite phase. On the other hand, all metal carbides studied were unstable in the fluorite phase.