Oxidation protection of CrSi2-HfB2-SiC/SiC coating for graphite in variable-temperature environment

被引：13
作者：
Wang, Peipei [1 ]
Bai, Yuhang [1 ]
Zhao, Xing [1 ]
Ren, Xuanru [2 ]
Sun, Wanchang [1 ]
机构：
[1] Xian Univ Sci & Technol, Coll Mat Sci & Engn, Xian 710054, Shaanxi, Peoples R China
[2] China Univ Min & Technol, Coll Mat Sci & Engn, Xuzhou 221116, Jiangsu, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 199卷
基金：
中国国家自然科学基金;
关键词：
Coating; Oxidation protection; Graphite; Multiphase glass; Variable-temperature environment; CARBON/CARBON COMPOSITES; RESISTANCE; BEHAVIOR; C/C; MICROSTRUCTURE;
D O I：
10.1016/j.corsci.2022.110165
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The application of carbon materials in actual environment requires that they can resist oxidation in variable-temperature environment. CrSi2-HfB2-SiC/SiC coating was synthesized on graphite surface to protect it from oxidation at variable temperature. The anti-oxidation properties of the coated samples were tested and analyzed in variable-high-temperature environment from 1700 to 1500 ? and a wider variable temperature environment from room temperature to 1700 ?. Experimental results reflect that the CrSi2-HfB2-SiC/SiC coating can not only protect graphite from oxidation in 1700 -> 1500 ?, but also protect it reliable service in room temperature -> 1700 ?. Pre-oxidation can reduce the oxidation damage of the coating in variable-high-temperature environment.
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页数：9
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