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Properties of Al2O3 protective coatings prepared by sol-gel process in atomic oxygen environment
Duo Shuwang; Li Meishuan; Yin Xiaohui; Liu Tingzhi; Zhou Yanchun
Corresponding AuthorDuo Shuwang(swduo@imr.ac.cn)
2007-08-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume36Pages:735-738
AbstractHighly 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.
Keywordatomic oxygen protective coatings al(2)O(3) sol-gel space environment
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000250915200213
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/89714
Collection中国科学院金属研究所
Corresponding AuthorDuo Shuwang
Affiliation1.Jiangxi Sci & Technol Normal Univ, Nanchang 330013, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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