Thermoelectric properties of Co1-xFexSb3 prepared by encapsulated induction melting

被引：1
作者：
Park, Kwan-Ho [1 ]
Ur, Soon-Chul [1 ]
Kim, Il-Ho [1 ]
机构：
[1] Chungbuk Natl Univ, ReSEM, Dept Mat Sci & Engn, 123 Geomdan Ri, Chungbuk 380702, South Korea
来源：
ADVANCES IN NANOMATERIALS AND PROCESSING, PTS 1 AND 2 | 2007年 / 124-126卷
关键词：
skutterudite; thermoelectric; induction melting; CoSb3;
D O I：
10.4028/www.scientific.net/SSP.124-126.939
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Co1-xFexSb3 skutterudites were synthesized by encapsulated induction melting and their thermoelectric properties were investigated. Single phase delta-CoSb3 was successfully obtained by the subsequent heat treatment at 773K for 24 hours in vacuum. However, delta-CoSb3 was decomposed to FeSb2 and Sb when x >= 0.3, which means that the solubility limit of Fe to Co is x < 0.3. The positive signs of Seebeck coefficients for all Fe-doped specimens revealed that Fe atoms acted as p-type dopants by substituting Co atoms. Thermoelectric properties were remarkably enhanced by Fe doping and optimum composition was found to be Co0.7Fe0.3Sb3 in this study.
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页码：939 / +
页数：2
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