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Diffusion in a regular solid solution

Published online by Cambridge University Press:  03 March 2011

J.L. Chu  and
Sanboh Lee
J.L. Chu
Affiliation:
Department of Materials Science, National Tsing Hua University, Hsinchu, Taiwan 30042
Sanboh Lee
Affiliation:
Department of Materials Science, National Tsing Hua University, Hsinchu, Taiwan 30042
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Abstract

Diffusion in a regular solid solution was investigated. A thin plate of isotropic solid of constant surface molal fraction was considered. The regular solution is described by the parameter α. When α is positive, the attraction between unlike atoms is greater than the attraction between like atoms, and conversely. The depths of penetration and average molal fraction for a given period increase with increasing α. The separation of two curves for given α increase with increasing surface molal fraction. The diffusion coefficient is positive only if α is greater than −1/X(1 - X).

Type
Rapid Communication
Information
Journal of Materials Research , Volume 10 , Issue 6 , June 1995 , pp. 1354 - 1357
Copyright
Copyright © Materials Research Society 1995

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References

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