Analytic model of the shear modulus at all temperatures and densities

被引：97

作者：

Burakovsky, L ^{[1
]}

Greeff, CW ^{[1
]}

Preston, DL ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.67.094107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An analytic model of the shear modulus applicable at temperatures up to melt and at all densities is presented. It is based in part on a relation between the melting temperature and the shear modulus at melt. Experimental data on argon are shown to agree with this relation to within 1%. The model of the shear modulus involves seven parameters, all of which can be determined from zero-pressure experimental data. We obtain the values of these parameters for 11 elemental solids. Both the experimental data on the room-temperature shear modulus of argon to compressions of similar to2.5, and theoretical calculations of the zero-temperature shear modulus of aluminum to compressions of similar to3.5 are in good agreement with the model. Electronic-structure calculations of the shear moduli of copper and gold to compressions of 2, performed by us, agree with the model to within uncertainties.

引用

页数：9

共 93 条

[1] THE ELASTIC CONSTANTS OF ZINC BETWEEN 4.2-DEGREES-K AND 670-DEGREES-K [J].