| 制备工艺对p型碲化铋基合金热电性能的影响 |
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| 引用本文： | 蒋俊,李亚丽,许高杰,崔平,吴汀,陈立东,王刚.制备工艺对p型碲化铋基合金热电性能的影响[J].物理学报,2007,56(5):2858-2862. |
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| 作者姓名： | 蒋俊 李亚丽 许高杰 崔平 吴汀 陈立东 王刚 |
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| 作者单位： | (1)洛阳耐火材料研究院,洛阳 471039; (2)中国科学院宁波材料技术与工程研究所,宁波 315040; (3)中国科学院上海硅酸盐研究所,上海 200050 |
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| 基金项目： | 浙江省科技攻关计划;中国博士后科学基金 |
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| 摘 要： | 利用区熔法、机械合金化、放电等离子烧结(SPS)技术、热压法等多种工艺制备了p型碲化铋基热电材料.在300—500K的温度范围内测量了各热电性能参数，包括电导率(σ)、塞贝克系数(α)和热导率(κ)，研究了制备工艺对热电性能的影响.结果表明，所制备的块体材料与同组成区熔晶体相比，性能优值ZT均有不同程度的提高.其中，利用区熔法结合SPS技术可获得热电性能最佳的块体材料，其ZT值达1.15.
关键词：
碲化铋
放电等离子烧结
区熔法
热电性能
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| 关 键 词： | 碲化铋 放电等离子烧结 区熔法 热电性能 |
| 文章编号： | 1000-3290/2007/56(05)/2858-05 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 07 28 2006 12:00AM |
Effect of preparation methods on thermoelectric properties of p-type Bi2Te3-based materials |
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| Jiang Jan,Li Ya-Li,Xu Gao-Jie,Cui Ping,Wu Ting,Chen Li-Dong,Wang Gang.Effect of preparation methods on thermoelectric properties of p-type Bi2Te3-based materials[J].Acta Physica Sinica,2007,56(5):2858-2862. |
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| Authors: | Jiang Jan Li Ya-Li Xu Gao-Jie Cui Ping Wu Ting Chen Li-Dong Wang Gang |
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| Institution: | 1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315040, China ; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 3. Luoyang Institute of Refractories Research, Luoyang 471039, China |
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| Abstract: | p-type Bi2Te3-based thermoelectric materials were fabricated by various methods, such as zone-melting, mechanical alloying, spark plasma sintering (SPS) and hot-pressing. Electrical conductivity (σ), Seebeck coefficient (α), and thermal conductivity (κ) were measured in the temperature range of 300—500K. The influence of the preparation methods on thermoelectric properties was studied. Compared with that of the zone-melted ingot, the figure of merit ZT (ZT=α2σT/κ) of those materials fabricated by the other methods mentioned were all increased to some extent. The obtained maximum ZT value was about 1.15 for that fabricated by the combination of zone-melting and spark plasma sintering technique. |
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| Keywords: | Bi2Te3 spark plasma sintering zone-melting thermoelectric property |
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