PREPARATION AND CHARACTERIZATION OF CaZrO3COATING ON GRAPHITE FOR TiNi ALLOY MELTING

Bin Zhan, Yue Zhang, Yunfeng Xiao, Caifen Wang and Xiangdong Zhang
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Bin Zhan: Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, P. R. China
Yue Zhang: Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, P. R. China
Yunfeng Xiao: Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, P. R. China
Caifen Wang: Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, P. R. China
Xiangdong Zhang: Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, P. R. China

Surface Review and Letters (SRL), 2020, vol. 27, issue 05, 1-7

Abstract: Graphite is a favorable melting material of TiNi alloy. In order to reduce the carbon increment during high temperature process, the protective CaZrO3 coating has been prepared using different methods. First, CaZrO3 powder was synthesized via solid-state reaction using calcium metal as raw material. The coating on graphite was prepared by flame spraying, plasma spraying and dipping sintering, then it was observed and characterized. The results show that the apparent quality of the obtained coating is intactness. Here, the spraying coating is composition uniform and structure compact; the dipping coating exhibits an obvious color change and presents the typical porous structure.

Keywords: CaZrO3; thermal spraying; dipping; coated graphite (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X1950152X

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