SiC nanowire-toughened MoSi2-SiC coating to protect carbon/carbon composites against oxidation

被引：50

作者：

Fu, Qian-Gang ^{[1
]}

Li, He-Jun ^{[1
]}

Zhang, Zheng-Zhong ^{[1
]}

Xie-Rong, Zeng ^{[2
,3
]}

Li, Ke-Zhi ^{[1
]}

机构：

[1] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Shenzhen Univ, Sch Mat Sci & Engn, Shenzhen 518060, Peoples R China

[3] Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Ceramic matrix composites; Intermetallics; Oxidation; CARBON-CARBON COMPOSITES; CHEMICAL-VAPOR INFILTRATION; NANORODS; BEHAVIOR; GROWTH;

D O I：

10.1016/j.corsci.2010.01.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To protect carbon/carbon (C/C) composites against oxidation, a SiC nanowire-toughened MoSi2-SiC coating was prepared on them using a two-step technique of chemical vapor deposition and pack cementation. SiC nanowires obtained by chemical vapor deposition were distributed random-orientedly on C/C substrates and MoSi2-SiC was filled in the holes of SiC nanowire layer to form a dense coating. After introduction of SiC nanowires, the size of the cracks in MoSi2-SiC coating decreased from 18 +/- 2.3 to 6 +/- 1.7 mu m, and the weight loss of the coated C/C samples decreased from 4.53% to 1.78%-after oxidation in air at 1500 degrees C for 110 h. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1879 / 1882

页数：4

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