Effect of stress on coherently grown Au-Ni (001) solid solutions

被引：0
|
作者：
Abadias, G
Gehanno, V
Marty, A
Gilles, B
Dynna, M
机构：
来源：
THIN FILMS - STRUCTURE AND MORPHOLOGY | 1997年 / 441卷
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中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of epitaxial stress on the stability of Au-Ni solid solutions grown by MBE on Au(001) is investigated. Experimental studies (TEM, GIXD) have shown that the elastic energy of the AuNi alloys is relaxed via two competing ways : twinning and an ordering process in which pseudo-periodic antiphase structures based on the L1(0) unit cell are found. The stabilisation of a metastable ordered L1(0) phase in the stressed Au-Ni system is explained using thermodynamic calculations based on the minimisation of free energy including elastic contributions.
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页码：439 / 444
页数：6
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