High Temperature Decomposition Behavior of CaZrO3 Coating on Graphite for TiNi Alloy Melting  

作　　者：ZHAN Bin ZHANG Yue WANG Caifen WANG Xiaoying 詹斌;ZHANG Yue;WANG Caifen;WANG Xiaoying(Institute of Materials,China Academy of Engineering Physics,Mianyang 621907,China)

机构地区：[1]Institute of Materials,China Academy of Engineering Physics,Mianyang 621907,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2020年第5期980-985,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China (No.51702299)。

摘　　要：In order to restrain the carbon pollution, the feasibility of CaZrO3 coating was studied. The precursor powder was synthesized via solid-state reaction using metal calcium as a raw material. The protective coating on graphite was prepared by impregnation sintering method, and the effects of slurry viscosity, graphite density and coating thickness for coating were compared. The phase composition and microstructure of coatings were characterized, and the thermodynamic process was analyzed when the coating composition changed from CaZrO3 to ZrC. The results show that vacuum sintering can result in the decomposition of CaZrO3 and an intact ZrC coating with beautiful porous structure can be obtained.

关 键 词：CaZr03 ZRC IMPREGNATION coated graphite DECOMPOSITION 

分 类 号：TG174.4[金属学及工艺—金属表面处理]