[1]姚栋嘉,李贺军,张守阳,等.C/C复合材料SiC涂层强冲蚀环境的烧蚀性能研究[J].中国材料进展,2015,(7-8):101-105.[doi:10.7502/j.issn.1674-3962.2015.07.17]
　YAO Dongjia,LI Hejun,ZHANG Shouyang,et al.Anti-Ablation Property of SiC Coating on C/C Composites at High Speed[J].MATERIALS CHINA,2015,(7-8):101-105.[doi:10.7502/j.issn.1674-3962.2015.07.17]
点击复制

C/C复合材料SiC涂层强冲蚀环境的烧蚀性能研究()
分享到：

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2015年第7-8期
页码:
101-105
栏目:
研究报告
出版日期:
2015-08-18

文章信息/Info

Title:
Anti-Ablation Property of SiC Coating on C/C Composites at High Speed
作者:
姚栋嘉;  李贺军;  张守阳;  李克智;  王永杰
西北工业大学 凝固技术国家重点实验室
Author(s):
YAO Dongjia;  LI Hejun;  ZHANG Shouyang;  LI Kezhi;  WANG Yongjie
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University
关键词:
炭/炭复合材料; 碳化硅涂层; 抗烧蚀
DOI:
10.7502/j.issn.1674-3962.2015.07.17
文献标志码:
A
摘要:
采用低压化学气相沉积法在碳纤维增强碳基（C/C）复合材料表面制备了碳化硅（SiC）涂层，借助XRD与SEM对SiC涂层的微观结构进行了分析，采用划痕仪测试了SiC涂层的结合力，研究了涂覆涂层后的C/C复合材料在强冲蚀条件下的烧蚀性能，分析了SiC涂层在强冲蚀条件下的失效机理.结果表明：LPCVD法制备的SiC涂层结构完整，无裂纹，无缺陷；涂层的结合力较弱，为5N；C/C复合材料烧蚀600s后涂层大部分区域保持完好，冲刷最强位置涂层遭到破坏；机械剥蚀是在强冲蚀条件下SiC涂层失效的主要原因。
Abstract:
To protect carbon/carbon (C/C) composites against ablation at high speed airflow, SiC coating was prepared on the surface of C/C composites by low pressure chemical vapor deposition. The microstructure of the as-received coating was analyzed by XRD and SEM. The binding force between the coating and composites was tested by scratch tester. The ablation behaviors of the coated samples at high speed airflow were studied. The results show that the as-received SiC coating possesses a crack-free structure. The binding force is 5 N, which is weak between the coating and composites. After ablation for 600 s, most region of the coating remain intact, the coating where the airflow scoured the most severely is damaged. Mechanical denudation is the main reason of the coating’s failure at high speed airflow.
更新日期/Last Update: 2015-08-12