OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS

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	OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS
	Y. Q. Wang ; B. L. Zhou ; Z. M. Wang
刊名	Carbon
	1995
卷号	33 期号:4 页码:427-433
关键词	carbon fibers oxidation resistance coatings glass technology strength alumina gel
ISSN号	0008-6223
中文摘要	SiC coatings prepared by chemical vapor deposition and from polycarbosilane (PCS) solution; also, SiO2 and Al2O3 coatings by Sol-Gel method were investigated in detail, to improve the oxidation resistance of carbon fibers as important reinforcement in advanced composites. A beta-SiC coating was obtained on carbon fibers by pyrolysis of CH3SiCl3 and H-2 at 1373-1573 K. The coating thickness could be controlled according to the requirements in practice. A uniform and fine SiC coating was also obtained by immersion and pyrolysis of PCS solutions with PCS contents of 5-15 wt%, and was composed of a mixture of SiC, SiO2, and free carbon after pyrolysis in argon. Fine and dense SiO2 and Al2O3 coatings could be obtained from silica and alumina sols, respectively, under exact control of process parameters. All coatings had good effects on the oxidation resistance of carbon fibers in the sequential order of CVD SiC, PCS-SiC, SiO2, and Al2O3. A composite coating of CVD SiC and a mixing coating of SiO2 and Al2O3 was suggested to decrease defects like pores and microcracks in individual coatings to obtain the best oxidation protection for carbon fibers.
原文出处	://WOS:A1995QV56500011
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/38701]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Q. Wang,B. L. Zhou,Z. M. Wang. OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS[J]. Carbon,1995,33(4):427-433.
APA	Y. Q. Wang,B. L. Zhou,&Z. M. Wang.(1995).OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS.Carbon,33(4),427-433.
MLA	Y. Q. Wang,et al."OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS".Carbon 33.4(1995):427-433.