Structure, elastic stiffness, and hardness of Os 1- xRu xB 2 solid solution transition-metal diborides
Online Publication Date2012-05-18
Print Publication Date2012-05-31
Permanent link to this recordhttp://hdl.handle.net/10754/562199
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AbstractOn the basis of recent experiments, the solid solution transition-metal diborides were proposed to be new ultra-incompressible hard materials. We investigate using density functional theory based methods the structural and mechanical properties, electronic structure, and hardness of Os 1-xRu xB 2 solid solutions. A difference in chemical bonding occurs between OsB 2 and RuB 2 diborides, leading to significantly different elastic properties: a large bulk, shear moduli, and hardness for Os-rich diborides and relatively small bulk, shear moduli, and hardness for Ru-rich diborides. The electronic structure and bonding characterization are also analyzed as a function of Ru-dopant concentration in the OsB 2 lattice. © 2012 American Chemical Society.
CitationKanoun, M. B., Hermet, P., & Goumri-Said, S. (2012). Structure, Elastic Stiffness, and Hardness of Os1–xRuxB2 Solid Solution Transition-Metal Diborides. The Journal of Physical Chemistry C, 116(21), 11746–11751. doi:10.1021/jp3015657
PublisherAmerican Chemical Society (ACS)