电源技术2012，Vol.36Issue(7)：995-998,4.
热压法制备P型Bi2Te3基温差电材料研究
Preparation of P-type Bi2Te3 based thermoelectric material by hot pressing
葛晓丽 1杨文昭 1张丽丽1
作者信息
- 1. 中国电子科技集团公司第十八研究所,天津300384
- 折叠
摘要
Abstract
In this article,with the p-type pseudo-binary thermoelectric material Bi2Te3-Sb2Te3 as the precursor,the samples were prepared with vacuum hot pressing technology,and their properties were measured before and after the hot pressing.The results indicate that the hot pressing samples have higher density and mechanical strength,which improves the phenomenon of splitting along the cleavage plane.Meanwhile,the hot pressing method changes the crystal structure and carrier concentration in the materials,which lead to the decrease of electric conductivity and the change of Seebeck coefficient,and then results in the decrease of thermal conductivity.For comprehensive consideration,the thermoelectric figure of merit of the hot pressing material is basically equivalent to that of zone-melting samples,but the mechanical properties of the former are much better than the later,which will provide a great advantage in practical application.关键词
P型Bi2Te3基温差电材料/热压/热电性能/机械强度Key words
P-type Bi2Te3 based thermoelectric material/hot pressing/thermoelectric properties/mechanical properties.分类
信息技术与安全科学引用本文复制引用
葛晓丽,杨文昭,张丽丽..热压法制备P型Bi2Te3基温差电材料研究[J].电源技术,2012,36(7):995-998,4.
