期刊
CERAMICS INTERNATIONAL
卷 47, 期 9, 页码 12753-12761出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.01.135
关键词
Plasma spraying; ZrB2-ZrC; Composite coatings; Silicon carbide
资金
- National Natural Science Foundation of China [52072110, 51672067, 51541208, 51102074]
- Natural Science Foundation of Hebei Province [E2018202034, E2015202070]
The study showed that the addition of SiC can improve the density and mechanical properties of ZrB2-ZrC-SiC coating. This is because SiC enhances the melting state of powder feedstocks during plasma spraying and refines the grains in the composite coating.
The effects of SiC on microstructure and properties of plasma sprayed ZrB2-ZrC composite coating were investigated. Plasma sprayed ZrB2-ZrC and ZrB2-ZrC-SiC composite coatings were prepared and compared. The addition of SiC could improve the density of the ZrB2-ZrC-SiC coating that lead to better mechanical properties. The reason was that SiC improved the melting state of powder feedstocks during plasma spraying process and refined grains in ZrB2-ZrC-SiC composite coating.
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