Strong Anisotropic Effects of p-Type Bi2Te3 Element on the Bi2Te3/Sn Interfacial Reactions

被引:0
作者
Shan Ye
Jen-Dong Hwang
Chih-Ming Chen
机构
[1] National Chung Hsing University,Department of Chemical Engineering
[2] Industrial Technology Research Institute,Material & Chemical Research Laboratory
来源
Metallurgical and Materials Transactions A | 2015年 / 46卷
关键词
Solder Joint; Bi2Te3; Zone Melting; SnTe; Bismuth Telluride;
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摘要
The p-type Bi2Te3 thermoelectric materials made by zone-melting method exhibit high anisotropy in the mechanical/thermoelectric properties due to unidirectional crystal growth. This unidirectional crystal structure also has a strong effect on the Sn/p-Bi2Te3 interfacial reactions. Stripe-like Sn3Sb2 phase precipitated in the SnTe phase in a direction approximately perpendicular or parallel to the Sn/p-Bi2Te3 interface depending upon the p-Bi2Te3 crystal orientation. Such anisotropic growth behavior of the Sn3Sb2 phase significantly affected the SnTe phase growth.
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页码:2372 / 2375
页数:3
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