首页 | 本学科首页   官方微博 | 高级检索  
     

Zn4Sb3高性能热电材料的制备
引用本文:陈中春,辻村润一,葳本遼. Zn4Sb3高性能热电材料的制备[J]. 材料与冶金学报, 2011, 10(1): 51-57
作者姓名:陈中春  辻村润一  葳本遼
作者单位:日本鸟取大学
摘    要:A reaction-extrusion process has been developed to prepare Zn4Sb3 bulk materials with high thermoelectric performance.The synthesis,densification,and shape-forming of Zn4Sb3 bulk materials were realized simultaneously in one hot-extrusion process,and the resulting extrudates had high density with single β-Zn4Sb3 phase.A large extrusion ratio and a small punch speed are advantageous to enhance thermoelectric performance.The extruded Zn4Sb3 materials exhibited excellent thermoelectric performance,for example,the dimensionless thermoelectric figure of merit is 1.77 at 623 K,which is 36% higher compared to conventional hot-pressed materials.On the other hand,the incorporation of 1% SiC nanosized particles into Zn4Sb3 matrix leads to improvements in both thermoelectric and mechanical properties.

关 键 词:thermoelectric materials  thermoelectric power generation  extrusion  reactive synthesis

Preparation of high performance Zn4Sb3 bulk thermoelectric materials
CHEN Zhongchun,Junichi Tsujimura,Ryo Kuranoto. Preparation of high performance Zn4Sb3 bulk thermoelectric materials[J]. Journal of Materials and Metallurgy, 2011, 10(1): 51-57
Authors:CHEN Zhongchun  Junichi Tsujimura  Ryo Kuranoto
Affiliation:CHEN Zhong-chun1,Junichi Tsujimura2,Ryo Kuramoto2 (1.Department of Mechanical and Aerospace Engineering,Graduate School of Engineering,Tottori University,Koyama-minami 4-101, Tottori 680-8552,Japan;2.Department of Metallurgy,Graduate School of Engineering, Tohoku University,Aoba-yama 6-6-02,Sendai 980-8579,Japan)
Abstract:A reaction -extrusion process has been developed to prepare Zn4Sb3 bulk materials with high thermoelectric performance. The synthesis, densification, and shape -forming of Zn4Sb3 bulk materials were realized simultaneously in one hot - extrusion process, and the resulting extrudates had high density with single β - Zn4 Sb3phase. A large extrusion ratio and a small punch speed are advantageous to enhance thermoelectric performance. The extruded Zn4Sb3 materials exhibited excellent thermoelectric performance, for example, the dimensionless thermoelectric figure of merit is 1.77 at 623 K, which is 36% higher compared to conventional hot - pressed materials. On the other hand, the incorporation of 1% SiC nanosized particles into Zn4Sb3 matrix leads to improvements in both thermoelectric and mechanical properties.
Keywords:thermoelectric materials  thermoelectric power generation  extrusion  reactive synthesis
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号