| 掺杂PbTe基热电材料的粉末冶金法制备及其性能研究 |
| |
| 引用本文： | 丁夏楠,蒋阳,杨奔,仲洪海,余大斌.掺杂PbTe基热电材料的粉末冶金法制备及其性能研究[J].粉末冶金工业,2012,22(4):35-40. |
| |
| 作者姓名： | 丁夏楠 蒋阳 杨奔 仲洪海 余大斌 |
| |
| 作者单位： | 1. 合肥工业大学材料科学与工程学院,安徽合肥,230009
2. 电子工程学院脉冲强激光技术国家重点实验室,安徽合肥,230037 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目，国家重点基础研究发展规划(973计划)资助项目，国家自然科学基金资助项目，国家教育部“新世纪优秀人才支持计划”资助项目，总装重点创新项目 |
| |
| 摘 要： | 通过溶剂热法制备出立方相PbTe纳米粉末,采用真空封管熔炼法得到PbTe基热电材料Ag0.5Pb8-xSnxSb0.5Te10的合金锭。通过高能球磨得到合金粉末,采用粉末冶金快速热压工艺制备该材料的块体材料。研究了不同Pb/Sn比在300～700K范围内对材料热电性能的影响。研究结果表明,当x=4,电导率在300K时达到1 300S/cm,在600K时达到340S/cm。当x=2,Seebeck系数在625K时达到261μV/K的最大值。功率因子达到15.9×10-4 Wm-1 K-2。
|
| 关 键 词： | PbTe基热电材料 粉末冶金 功率因子 Seebeck系数 |
PROPERTIES CHARACTERIZATION OF DOPED PbTe MATRIX THERMOELECTRIC MATERIALS VIA POWDER METALLURGY METHOD |
| |
| DING Xia-nan
,
JIANG Yang
,
YANG Ben
,
ZHONG Hong-hai
,
YU Da-bin.PROPERTIES CHARACTERIZATION OF DOPED PbTe MATRIX THERMOELECTRIC MATERIALS VIA POWDER METALLURGY METHOD[J].Powder Metallurgy Industry,2012,22(4):35-40. |
| |
| Authors: | DING Xia-nan JIANG Yang YANG Ben ZHONG Hong-hai YU Da-bin |
| |
| Affiliation: | 1.School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China; 2.State Key Laboratory of Pulsed Power Laser Technology,Electronic Engineering Institute, Hefei 230037,China) |
| |
| Abstract: | Cubic phase PbTe nanoparticles were synthesized by solvothemal process,and PbTe matrix thermoelectric materials Ag0.5Pb8-xSnxSb0.5Te10 alloys were prepared via vacuum melting in a sealed quartz glass tube.Alloy powders were prepared by high-energy ball milling process,then the Ag0.5Pb8-xSnxSb0.5Te10 bulk alloys were prepared by powder metallurgy rapid hot-pressing sintering method.Effects of different Pb/Sn rate on thermoelectric properties at different temperature(from 300 K to 700 K) were investigated.Result shows that the electrical conductivity reaches the maximum value of 1 300 S/cm at 300 K and 340 S/cm at 600 K as x equals to 4,and the seebeck coefficient and power factor reach the maximum values of 261 μV/K and 15.9×10-4Wm-1K-2 as x equals to 2. |
| |
| Keywords: | PbTe matrix thermoelectric materials powder metallurgy power factor Seebeck coefficient |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
