SiC Nanowires Toughed HfC Ablative Coating for C/C Composites

作     者：Hejun Li Yongjie Wang Qiangang Fu Yanhui Chu 

作者机构：State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2015年第31卷第1期

页      面：70-76页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China (No. 51072166) National Science Foundation of China, (No. 51221001) Program for New Century Excellent Talents in University the "111 Project" (No. B08040) 

主　　题：Ablation performance Carbon/carbon composites Carb 

摘      要：In order to improve ablation resistance of carbon/carbon(C/C) composites,SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC *** nanowires grew randomly and had good combination with HfC *** nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC *** surface was much flatter and exhibited smaller cracks in center *** ablation mechanism of HfC coating has been changed by SiC *** HfO2 fused layer was formed on the surface of the toughed HfC coating,which could provide efficient protection for C/C ***,SiC nanowires toughed HfC coating behaved in better ablation resistance.