| n型(AgSbTe2)x(PbTe)1-x热电材料的制备和性能 |
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| 引用本文： | 鄢永高,唐新峰,刘海君,尹玲玲,张清杰. n型(AgSbTe2)x(PbTe)1-x热电材料的制备和性能[J]. 武汉理工大学学报, 2007, 29(11): 1-3 |
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| 作者姓名： | 鄢永高 唐新峰 刘海君 尹玲玲 张清杰 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 国家自然科学基金;高校科技创新工程项目 |
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| 摘 要： | 采用熔融缓冷法制备了组成为(AgSbTe2)x(PbTe)1-x(x=0.04—0.20)的热电材料,研究了AgSbTe2固溶量对材料微观结构和热电传输性能的影响。结果表明,当AgSbTe2固溶量增大时,样品易发生相结构偏析,样品由富Pb和富AgSb的两相组成。样品热导率随AgSbTe2固溶量增加而降低,电性能也有一定程度的降低。样品的无量纲热电优值(ZT)随AgSbTe2固溶量的减小而增加。
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| 关 键 词： | 热电 熔融缓冷法 偏析 |
| 文章编号： | 1671-4431（2007）11-0001-03 |
| 修稿时间： | 2007-06-12 |
Preparation and Properties of n-type (AgSbTe2)x( PbTe)1-x Thermoelectric Material |
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| YAN Yong-gao,TANG Xin-feng,LIU Hai-jun,YIN Ling-ling,ZHANG Qing-jie. Preparation and Properties of n-type (AgSbTe2)x( PbTe)1-x Thermoelectric Material[J]. Journal of Wuhan University of Technology, 2007, 29(11): 1-3 |
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| Authors: | YAN Yong-gao TANG Xin-feng LIU Hai-jun YIN Ling-ling ZHANG Qing-jie |
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| Affiliation: | State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | (AgSbTe2)x(PbTe)1-x(x=0.04-0.20) samples were prepared by slow-cool-from-melts and the influences of AgSbTe2 content on the microstructure and thermoelectric properties were investigated.Results indicated that phase segregation occurs as x increases and the samples are characterized by a bi-phased material containing one main Pb-rich phase and another Ag-Sb-rich phase.As AgSbTe2 content increases,the thermal conductivity is depressed and the electrical properties decrease to some extent.The dimensionless of figure of merits(ZT) is greater for sample with a lower AgSbTe2 content. |
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| Keywords: | (AgSbTe2)x(PbTe)1-x |
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