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Effect of Y-filling on thermoelectric properties of CoSb3 |
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| Authors: | LIU Hongquan GAO Hongli GU Yijie Zhao Xinbing |
| Affiliation: | LIU Hongquan 1,GAO Hongli 2,GU Yijie 1,Zhao Xinbing 2 (1. College of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266510,China,2. State Key Laboratory of Silicon Materials,Department of Materials Science,Zhejiang University,Hangzhou 310027,China) |
| Abstract: | The CoSb3 and Y0.18Co4Sb12 compounds were synthesized by a metallurgical route. Their bulk materials were prepared by the hot-pressed process under vacuum. Thermoelectric properties of the samples were measured by the thermoelectric measurement system and the laser flash diffusivity apparatus. The carrier type conversion of hot-pressed CoSb3 was found at about 530 K, while the conversion was missed for the Y0.18Co4Sb12 sample. Electrical conductivity of the Y0.18Co4Sb12 sample increased due to the increase ... |
| Keywords: | thermoelectric material skutterudites electrical properties thermal conductivity rare earths |
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