期刊
APPLIED SURFACE SCIENCE
卷 360, 期 -, 页码 970-978出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2015.11.097
关键词
Carbon/carbon composite; Ultra-high temperature ceramic coating; HfC nanowires; Mechanical property; Oxidation resistance
类别
资金
- National Natural Science Foundation of China [51272213, 51221001, 51202093]
- 111 project [B08040]
- State Key Laboratory of Solidification Processing (NWPU), China [98-QZ-2014]
To improve the oxidation resistance of carbon/carbon (C/C) composites, a dense HfC nanowire-toughened ultra-high temperature ceramic multiphase coating was prepared on SiC-coated C/C composites by chemical vapor deposition (CVD) and pack cementation. The microstructure, mechanical and oxidation resistance properties of the coating were investigated. The results show that the HfC nanowires in the coating could suppress the cracking of the coating and then improve the toughness of the coating. The flexural property, thermal shock and isothermal oxidation resistance of the coating were all improved due to the incorporation of HfC nanowires. (C) 2015 Elsevier B.V. All rights reserved.
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