机械球磨和烧结制备CoSb_3的工艺研究  

Preparing of CoSb_3 by high-energy ball milling and sintering

作　　者：彭江英[1] 杨君友[1] 陈跃华[1] 朱文[1] 宋新莉[1] 张同俊[1] 

机构地区：[1]华中科技大学模具技术国家重点实验室,湖北武汉430074

出　　处：《材料科学与工艺》2005年第2期113-115,共3页Materials Science and Technology

基　　金：国家基础研究快速反应基金资助项目([2001]51)武汉市青年科技晨光计划资助项目(20015005029)华中科技大学研究生基金资助项目(J0226).

摘　　要：针对skutterudite材料制备工艺中熔融法和固相反应法合成周期长、工序多的不足,尝试将机械合金化法应用于skutterudite材料制备中.探讨了CoSb3的机械合金化和烧结制备工艺,研究表明,Co、Sb粉末的机械合金化在球磨10h后开始,球磨40h后已全部合金化,得到CoSb3和CoSb2相混合物.合金化过程中CoSb3相先于CoSb2相形成.采用球磨10h-700℃烧结2h的工艺可得到单相CoSb3,制备工序简单,所需时间大大缩短.Considering that melting and solid state reaction methods are complex and time - consuming in preparing skutterudite materials, mechanical alloying is selected to be studed. As the first, mechanical alloying and sintering processes of semiconductor CoSb3 have been studied. It has been found that mechanical alloying begins after 10 hours milling, then element components disappear after 40 hours and compounds CoSb3, CoSb2 are developed. Optimal preparing condition for single pashe CoSb3 is found to be mechanical alloying for 10 hours and then sintering for 2 hours at 700℃.

关 键 词：热电材料 SKUTTERUDITE CoSb3 机械合金化 烧结 

分 类 号：TN37[电子电信—物理电子学]