Influence of Chromium Content on the Oxidation Resistance of Al-Si Alloy Coating for SiC Coated Carbon-Carbon Composites

被引：0

作者：

Huang Min ^{[1
,2
]}

Li Kezhi ^{[2
]}

Li Hejun ^{[2
]}

Fu Qiangang ^{[2
]}

Wang Chuang ^{[2
]}

Sun Guodong ^{[2
]}

机构：

[1] Xian Shiyou Univ, Sch Mat Sci & Technol, Xian 710065, Peoples R China

[2] NW Polytech Univ, Xian 710072, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷

关键词：

carbon/carbon composites; coating; oxidation resistance; Al-Si alloy; CARBON/CARBON COMPOSITES; C/C COMPOSITES; MICROSTRUCTURE; TEMPERATURE; BEHAVIOR; PHASE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-Si alloy coatings containing different contents of Cr from 31.85 wt% to 55.57 wt% for SiC coated carbon-carbon composites (SiC-C/C) were prepared by a slurry method. The structures and oxidation resistances of the as-prepared coatings were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and isothermal oxidation test at 1773 K in air, respectively. The results show that Cr can improve the oxidation resistance of Al-Si coating, and the Al-Si coating containing 44.95 wt% Cr could protect SiC-C/C from oxidation for 197 h with a mass gain of 0.079 wt%.

引用

页码：544 / 547

页数：4

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