LATTICE THEORY OF ALKALI HALIDE SOLID SOLUTIONS .2. ENTROPY OF MIXING AND SOLID SOLUBILITY

被引：33

作者：

FANCHER, DL

BARSCH, GR

机构：

[1] Materials Research Laboratory, The Pennsylvania State University, University Park, Penn.

[2] Materials Research Laboratory, Department of Physics, The Pennsylvania State University, Penn.

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1969年 / 30卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-3697(69)90262-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solid solubility curves are calculated for six alkali halide systems from theoretical heat of formatation data. Fair to good agreement with experimental data is found for the two systems for which these are available. The vibrational contribution to the entropy of mixing is found to be important and can be adequately calculated from the Debye approximation. The composition dependence of the elastic constants required for the calculation of the Debye temperature of the solid solution can be successfully determined from a simple interpolation formula based on Vegard's law for the volume under pressure. © 1969.

引用

页码：2517 / &

共 24 条

[1] STUDIES OF NACL-KCL SOLID SOLUTIONS .1. HEATS OF FORMATION, LATTICE SPACINGS, DENSITIES, SCHOTTKY DEFECTS AND MUTUAL SOLUBILITIES [J].