| 热压法制备N型Si0.8Ge0.2合金及其热电性能 |
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| 引用本文： | 殷海波,王丹,徐桂英,张春燕,马国超.热压法制备N型Si0.8Ge0.2合金及其热电性能[J].装备制造技术,2007(4):18-20. |
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| 作者姓名： | 殷海波 王丹 徐桂英 张春燕 马国超 |
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| 作者单位： | 北京科技大学特种陶瓷与粉末冶金研究室,北京,100083 |
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| 摘 要： | 采用真空熔炼和热压烧结法制备了掺P量为0．1％～0．3％的N型Si0．8Ge0．2固溶体合金，对样品进行了物相结构分析和微观形貌表征，并研究了掺P量对合金室温热电性能的影响。结果表明：随着P掺杂量的增加，电导率σ增加缓慢，各样品相差不大，塞贝克系数α明显减小。功率因子α2σ随之减小。
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| 关 键 词： | SiGe合金 热电材料 热压 |
| 文章编号： | 1672-545X(2007)04-0018-03 |
| 修稿时间： | 2007-02-03 |
Synthesis and Thermoelectric Properties of N-type Si0.8Ge0.2 Alloys by Hot Pressing |
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| Authors: | YIN Hai-bo WANG Dan XU Gui-ying ZHANG Chun-yan MA Guo-chao |
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| Affiliation: | The Laboratory of Special Ceramics and Powder Meta llury,University of Scienc and Science and Techndogy Beijing,Beijing 100083,China |
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| Abstract: | N-type Si0.8Ge0.2 alloys doped with 0.1%~0.3.% P have been synthesized by melting in vacuum and hot pressing.Phase structure and micromorphology,as well as the P dependence of thermoelectric parameter at room temperature were observed.The results show that the electrical conductivity increases slowly with the increase of P contents,it causes small difference between samples.As the P contents increase,the Seebeck coefficient decreases obviously and power factor decreases subsequently. |
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| Keywords: | SiGe alloys thermoelectric materials hot pressing |
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