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

页码：103 / 110

页数：8

共 25 条

[11] ZrO2-SiO2 gradient multilayer oxidation protective coating for SiC coated carbon/carbon composites [J].