Elastic moduli of superhard rhenium diboride

被引：29
|
作者：
Koehler, Michael R. [1 ]
Keppens, Veerle [1 ]
Sales, Brian C. [2 ]
Jin, Rongying [2 ]
Mandrus, David [2 ]
机构：
[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37919 USA
[2] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 09期
基金：
美国国家科学基金会;
关键词：
RESONANT ULTRASOUND SPECTROSCOPY; SOLIDS;
D O I：
10.1088/0022-3727/42/9/095414
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The elastic moduli of polycrystalline rhenium diboride are measured as a function of temperature between 5 and 325 K. The room temperature results show that ReB2 has very high values for both the bulk and shear modulus, confirming the incompressible and superhard nature of this material. With decreasing temperature, the moduli increase, with a hint of softening below 50K.
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页数：4
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