| Issue |
J. Phys. Colloques
Volume 48, Number C6, Novembre 1987
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
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|---|---|---|
| Page(s) | C6-323 - C6-328 | |
| DOI | https://doi.org/10.1051/jphyscol:1987653 | |
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
J. Phys. Colloques 48 (1987) C6-323-C6-328
DOI: 10.1051/jphyscol:1987653
Department of Materials Science and Engineering, Osaka University, Suita, Osaka 565, Japan
J. Phys. Colloques 48 (1987) C6-323-C6-328
DOI: 10.1051/jphyscol:1987653
SURFACE ENERGY AND EQUILIBRIUM SHAPE OF L12-TYPE A3B ORDERING ALLOYS
M. Yamamoto, T. Fukuda et S. NennoDepartment of Materials Science and Engineering, Osaka University, Suita, Osaka 565, Japan
Abstract
Calculation of surface energy of L12-type A3B ordering alloy was made on the basis of a broken bond model using Bragg-Williams approximation. Prior to the calculation of surface energy, calculation of broken bond density in the same alloy was made. Numerical results for Cu3Au alloy were presented as functions of surface orientation and degree of order. Applying Wulff's theorem to calculated γ-plots of the alloy, their external equilibrium shapes for the alloy with various degree of order (η) were predicted.