材料科学
涂层
复合材料
热冲击
陶瓷
微观结构
抗弯强度
韧性
胶结(地质)
断裂韧性
纳米线
化学气相沉积
等温过程
纳米技术
水泥
物理
热力学
作者
Jincui Ren,Yulei Zhang,Heng Hu,Tian Fei,Hejun Li
标识
DOI:10.1016/j.apsusc.2015.11.097
摘要
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.
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