High Temperature Decomposition Behavior of CaZrO3 Coating on Graphite for TiNi Alloy Melting
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第5期
论文作者：詹斌 ZHANG Yue WANG Caifen WANG Xiaoying
文章页码：980 - 985
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.
詹斌，ZHANG Yue，WANG Caifen，WANG Xiaoying
Institute of Materials, China Academy of Engineering Physics
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.
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