Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment

IMR OpenIR

	Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment
	Duo Shuwang ; Li Meishuan ; Yin Xiaohui ; Liu Tingzhi ; Zhou Yanchun
通讯作者	Duo Shuwang(swduo@imr.ac.cn)
	2007-08-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	36 页码:735-738
摘要	Highly transparent, uniform and corrosion resistant Al2O3 coatings were prepared on silver and Kapton substrates by sol-gel process from stable sol solutions taking Al(C3H7O)(3) as precursor. The coatings irradiated by atomic oxygen generated in a ground simulation facility were investigated by Scanning Electron Microscopy (SEM), X-Ray Photoelectron Spectroscopy (XPS) and Fourier Transform Infrared Spectroscopy (FTIR). The experimental results clearly demonstrate that this kind of coatings provided a good protection from AO attack. The erosion yield of the coatings was 2.0 X 10(-26) cm(3)/atom, decreased by two orders of magnitude compared with the value of 3.0 X 10(-24) cm(3)/atom of the polyimide film. This Al2O3 layer significantly retarded the penetration of oxygen atoms, preventing further degradation of the bulk polymer. The coatings had no influence on the optical property of the substrate materials. These coatings show excellent adhesion to the substrate and thermal cycle stability, mechanical flexible. The results demonstrate that the coatings prepared by sol-gel technique were cost-effective and easily scaleable to large dimensions for practical application.
关键词	atomic oxygen protective coatings al(2)O(3) sol-gel space environment
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000250915200213
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/89714
专题	中国科学院金属研究所
通讯作者	Duo Shuwang
作者单位	1.Jiangxi Sci & Technol Normal Univ, Nanchang 330013, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Duo Shuwang,Li Meishuan,Yin Xiaohui,et al. Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment[J]. RARE METAL MATERIALS AND ENGINEERING,2007,36:735-738.
APA	Duo Shuwang,Li Meishuan,Yin Xiaohui,Liu Tingzhi,&Zhou Yanchun.(2007).Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment.RARE METAL MATERIALS AND ENGINEERING,36,735-738.
MLA	Duo Shuwang,et al."Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment".RARE METAL MATERIALS AND ENGINEERING 36(2007):735-738.