Correlation between hardness and elastic moduli of the ultraincompressible transition metal diborides RuB2, OsB2, and ReB2

被引：190
作者：
Chung, Hsiu-Ying [1 ]
Weinberger, Michelle B. [2 ,3 ]
Yang, Jenn-Ming [1 ]
Tolbert, Sarah H. [2 ,3 ]
Kaner, Richard B. [1 ,2 ,3 ]
机构：
[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 26期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1063/1.2946665
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The ultraincompressible transition metal diborides RuB2, OsB2, and ReB2 were synthesized by arc melting the elemental metals and boron under an argon atmosphere at ambient pressure. The hardness and Young's modulus were measured using nanoindentation with a Berkovich diamond indenter. The bulk modulus and shear modulus were derived based on an isotropic model and then plotted as a function of hardness. A strong correlation is observed between the hardness and shear modulus for these transition metal diborides. (c) 2008 American Institute of Physics.
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页数：3
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