Dense-Gas Formulation of Self-Diffusion of Liquid Metals
Dense-Gas Formulation of Self-Diffusion of Liquid Metals
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DOI：
10.1103/physrev.165.222
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发表时间：
1968-01
期刊：
影响因子：
--
通讯作者：
P. Ascarelli;A. Paskin
中科院分区：
文献类型：
--
作者：
P. Ascarelli;A. Paskin
基于稠密流体的范德华概念，建立了一种液态金属自扩散系数的精确理论。利用恩斯科格硬球公式，我们得到了以下结果：1）一种自扩散系数的关系式，它能精确给出在大气压下整个液态范围内自扩散系数的大小及其对温度的依赖关系；2）熔点与自扩散系数之间的一种关系，它是林德曼熔化定律在凝固方面的对应关系。
An accurate theory for the self-diffusion coefficient of liquid metals is developed in terms of the Van der Waals concept of a dense fluid. Making use of the Enskog hard-sphere formulation we obtain the following results: 1) a relationship for the coefficient of self-diffusion which accurately gives both the magnitude and temperature dependence over the entire liquid range at atmospheric pressure; 2) a relation between the melting point and the coefficient of self-diffusion which is the freezing counterpart of the Lindemann law of melting.