Two approaches for the evaluation of collective diffusion correlation factors

被引:3
作者
Belova, IV
Murch, GE
机构
[1] Department of Mechanical Engineering, The University of Newcastle, Callaghan, NSW
来源
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1996年 / 73卷 / 01期
基金
澳大利亚研究理事会;
关键词
D O I
10.1080/01418619608242972
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The diffusion of probability and matrix methods for calculating collective (and tracer) correlation factors are compared using as an example the random alloy. It is shown that the method of diffusion probability can provide the general behaviour of the structure of the cosines (the cosine of the angle between a given jump of a species and a later jump) and of the summations, while the matrix method can give accurate values of the cosines. Accordingly, in cases of complicated systems and/or lattice structures the procedure of analysis of correlation effects should be a combination of these two methods.
引用
收藏
页码:131 / 146
页数:16
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