Preparation and ablation resistance of ZrC nanowires-reinforced CVD-ZrC coating on sharp leading edge C/C composites

被引：35
|
作者：
Li, Bo [1 ]
Li, Hejun [1 ]
Yao, Xiyuan [1 ]
Zhu, Xiaofei [1 ]
Liu, Ningkun [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2022年 / 584卷
基金：
中国国家自然科学基金;
关键词：
ZrC nanowire; Coating; Chemical vapor deposition; Sharp leading edge; Ablation resistance; SIC NANOWIRES; GROWTH-BEHAVIOR; THERMAL-SHOCK; MICROSTRUCTURE; TEMPERATURE; DEPOSITION; OXIDATION;
D O I：
10.1016/j.apsusc.2022.152617
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
To improve the ablation resistance of sharp leading edge (SLE) C/C composites, the ZrC nanowires reinforced ZrC coating (ZrC-ZrCnws) was prepared by two-step CVD method. The preparation of ZrC nanowires and the microstructure, bonding strength, as well as ablation resistance of the ZrC-ZrCnws coating were studied. After the severe ablation, the SLE sample with ZrC-ZrCnws coating presented an excellent ablation resistance with the mass and linear ablation rates of only 0.59 & PLUSMN; 0.06 mg/s and-0.92 & PLUSMN; 0.09 mu m/s, respectively. Such good ablation resistance was attributed to the incorporation of ZrC nanowires, which can inhibit the cracking of coating and form ZrO2 rod-like structures after oxidation, supporting the oxide layer to resist flame scouring.
引用
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页数：10
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