Synthesis of Filled-Skutterudite Thermoelectric Materials by Mechanical Alloying and Sintering

摘要：

La<,0.2>FeCo<,3>Sb<,12> filled-skutterudite compounds were prepared by mechanical alloying and subsequent hot press sintering and vacuum sintering respectively. There is a small amount Sb impurity along with the filled skutterudite compound when the powders MAed for 10h were vacuum sintered at 700℃ for 10h. While single-phase filled-skutterudite compounds could be obtained by hot pressing the as- MAed powders at 650℃ for 2h. The vacuum sintered sample presented a porous microstructure, and the sample density could be increased by hot press, furthermore, the hot pressed sample shows fine microstructure. The ZT of the filled skutterudite samples was 0.045 at 400K for two heat treatment procedures.

关键词： thermoelectric materials filled-skutterudite compounds mechanical alloying sintering

作者: Xinli Song Junyou Yang Jiangying Peng Siqian Bao Wen Zhu Tongjun Zhang

作者单位: Institute of Materials and Metallurgy, Wuhan University of Science and Technology, China Institute o Institute of Materials, Huazhong University of Science and Technology, China

会议类型: 国际会议

会议名称: 2006现代科技国际研讨会(The International Workshop on Modern Science and Technology in 2006)

会议地点: 北京

会议语种:英文

页码: 81-84

在线出版日期: 2006-04-01（万方平台首次上网日期，不代表论文的发表时间）