| LIU Chang-peng,LEI Wei,RAN Xu-dong,ZHANG Fei-yue.Preparation of ZrB2/SiC Composite Powder Modified by TaSi2 and the Antioxidant Property of Its Coating[J],52(10):350-359 |
| Preparation of ZrB2/SiC Composite Powder Modified by TaSi2 and the Antioxidant Property of Its Coating |
| Received:October 18, 2022 Revised:February 26, 2023 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.10.030 |
| KeyWord:C/C composites ZrB2/SiC TaSi2 atmospheric plasma spraying coating density anti-oxidation ablation |
| Author | Institution |
| LIU Chang-peng |
Southwest Institute of Technology and Engineering, Chongqing , China |
| LEI Wei |
Southwest Institute of Technology and Engineering, Chongqing , China |
| RAN Xu-dong |
Southwest Institute of Technology and Engineering, Chongqing , China |
| ZHANG Fei-yue |
Southwest Institute of Technology and Engineering, Chongqing , China |
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| Abstract: |
| Because of its excellent performance, hypersonic vehicle has become the commanding point of military strategy and technology of military powers. C/C composites with high strength, light weight and good seismic performance have attracted wide attention. C/C composites not only have good electrical conductivity, thermal conductivity and light weight characteristics, but also have good friction resistance, high temperature resistance, thermal shock resistance and corrosion resistance, especially because of their excellent high temperature mechanical properties, so they become one of the ideal materials for hypersonic aircraft. However, due to the complex service environment of hypersonic vehicle (high temperature, water and oxygen environment), oxidation and ablation of C/C composites under high temperature and aerobic conditions have become the bottleneck of its wide application. The preparation of ZrB2/SiC coatings on C/C composites by atmospheric plasma spraying (APS ) is one of the effective methods to improve the anti-oxidation ablation performance and prolong the service life of C/C composites. However, the coatings still have some shortcomings such as difficult densification, low emissivity and fast heating rate, so they cannot be widely used. |
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