Oxidation pre-treatment to improve the mechanical property and oxidation resistance of Si-Mo-Cr coated C/C composites

被引：38
作者：
Fu, Qiangang [1 ]
Shan, Yucai [1 ]
Wen, Shiqi [1 ]
Li, Hejun [1 ]
Chu, Yanhui [1 ]
Liu, Xuesong [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, CC Composites Res Ctr, Xian 710072, Peoples R China
来源：
CORROSION SCIENCE | 2014年 / 83卷
基金：
中国国家自然科学基金;
关键词：
Ceramic matrix composites; High temperature corrosion; Oxidation; CARBON/CARBON COMPOSITES; CARBON MATERIALS; BEHAVIOR; MULTILAYER; MICROSTRUCTURE; TEMPERATURE; PROTECTION; DEPOSITION; COATINGS; SYSTEM;
D O I：
10.1016/j.corsci.2014.02.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A transition layer with an interlocking structure was obtained at the interface between C/C composites and Si-Mo-Cr coating by oxidation pre-treatment and pack cementation process. The effects of pre-oxidation time on the microstructures, mechanical property and oxidation behavior of the coated C/C samples were investigated. After oxidation pre-treatment at 1173 K in air for 6 min, the flexural strength of the coated samples increases by 71.7% and the mass loss rate decreases by 77.4%. The improvements of the mechanical property and oxidation resistance are primarily attributed to the formation of the moderate transition layer between C/C and Si-Mo-Cr coating. (c) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：103 / 110
页数：8
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