熔炼-退火法制备Ca_3Co_4O_9热电材料  

Preparation of thermoelectric material Ca_3Co_4O_9 using melting-annealing technique

作　　者：张中建[1] 金应荣[1] 鲁云[2] 王洪[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039 [2]千叶大学工学部

出　　处：《西华大学学报（自然科学版）》2008年第5期70-72,共3页Journal of Xihua University:Natural Science Edition

基　　金：教育部春晖计划项目(No.Z2005-2-61003)

摘　　要：本文用氩等离子体电弧加热预烧结的名义(目标)组成为Ca3Co4O9的材料,使其熔化凝结成致密的CaO/CoO块体材料,然后在空气中于880℃退火96h,得到了致密的单相Ca3Co4O9块体热电材料。本研究为探索Ca3Co4O9的制备新方法奠定了实验基础。The nominal composition material Ca3Co4O9,after being pre-sintered at 900℃,melted by employing argon plasma and cooled naturally,is turned into compact CaO/CoO bulk material,and then changed into dense thermoelectric material Ca3Co4O9 after being annealed at 880℃.The melting-annealing technique is expected to be a new approach for preparing thermoelectric materialCa3Co4O9.

关 键 词：CA3CO4O9 热电材料 熔炼-退火法 组织结构 

分 类 号：O782.8[理学—晶体学] O792