Theory of thermal expansivity and bulk modulus for MgO and other minerals at high temperatures

被引：91
作者：
Shanker, J
Kushwah, SS
Kumar, P
机构：
[1] RISHI GALAV COLL,MORENA,MADHYA PRADESH,INDIA
[2] NARAIN COLL,SHIKOHABAD,UTTAR PRADESH,INDIA
来源：
PHYSICA B | 1997年 / 233卷 / 01期
关键词：
thermal expansivity; bulk modulus; MgO and other minerals; EQUATION;
D O I：
10.1016/S0921-4526(96)01238-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Gruneisen theory of thermal expansion as formulated by Born and Huang has been modified by including higher-order terms for the change in volume in the expansion of potential energy. New expressions are obtained for the thermal expansivity and bulk modulus, and used to estimate these quantities for MgO and other minerals in the temperature range 300-1800 K. The results are found to present close agreement with the experimental data.
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页码：78 / 83
页数：6
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