高温下地幔矿物质的体积弹性模量及二阶弹性常数  

Bulk Modulus and Second-order Elastic Constants of Mantle Minerals at High Temperature

作　　者：张玥 刘泉[1] Zhang Yue;Liu Quan(School of Physics and Material Science,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学物理与光电工程学院,安徽合肥230601

出　　处：《宁夏大学学报（自然科学版）》2022年第4期374-377,共4页Journal of Ningxia University(Natural Science Edition)

基　　金：安徽省高等学校省级教学研究项目(2018jyxm0699)。

摘　　要：通过分析大量的实验数据,给出高温下矿物质热膨胀系数的唯象公式,并结合热力学关系式,提出了一种简单而直接的方法计算3种典型地幔矿物质在不同温度下的体积弹性模量及二阶弹性常数.计算结果与实验数据保持一致.A phenomenological formula for the coefficient of thermal expansion of minerals at high temperatures is given by analyzing and comparing a large number of experimental data.Combined with the thermodynamic relationship,a simple and direct method is proposed to calculate the bulk modulus and second-order elastic constant of three typical mantle minerals at different temperatures.The calculated results are in good agreement with the experimental data.

关 键 词：高温 弹性常数 矿物质 

分 类 号：O522.2[理学—高压高温物理]