HIGH-TEMPERATURE ELASTIC-CONSTANTS OF PLATINUM SINGLE-CRYSTALS
HIGH-TEMPERATURE ELASTIC-CONSTANTS OF PLATINUM SINGLE-CRYSTALS
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DOI：
10.1016/0956-7151(92)90011-3
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发表时间：
1992-04-01
期刊：
影响因子：
--
通讯作者：
MCLELLAN, RB
中科院分区：
文献类型：
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作者：
COLLARD, SM;MCLELLAN, RB
在300-1480K温度范围内测量了两种取向的铂单晶的弹性波速，测得的弹性常数C11、C12和C44与以前的低温数据很好地吻合，并表现出与温度的依赖关系，而不符合准谐模型。剪切常数随温度的变化与电子结构与C44值之间的关系模型定性一致。
Elastic wave velocity measurements in two oriented Pt single crystals have been measured in the temperature range 300-1480 K. The elastic constants C11, C12 and C44 are in excellent agreement with previous low temperature data and exhibit a temperature-dependence which is not in accord with the quasi-harmonic model. The temperature-dependence of the shear constant is in qualitative agreement with a model which relates the electronic structure to the value of C44.