A polysilazane coating protecting polyimide from atomic oxygen and vacuum ultraviolet radiation erosion

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	A polysilazane coating protecting polyimide from atomic oxygen and vacuum ultraviolet radiation erosion
	L. F. Hu; M. S. Li; C. H. Xu; Y. M. Luo; Y. C. Zhou
	2009
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	203 期号:22 页码:3338-3343
摘要	A polysilazane coating was prepared on polyimide substrate by the polymeric precursor method to protect space materials from attack of atomic oxygen (AO) and vacuum ultraviolet radiation (VUV) in low earth orbit (LEO) environment. Erosion kinetics, surface morphologies, and surface composition investigation indicate that this polysilazane coating possesses excellent AO resistance, and displays low shrinkage tendency in AO exposure. The erosion yield of the prepared polysilazane coating is 3.5 x and 2.1 x 10(-26) cm(3)/atom during AO exposure and simultaneous AO and VUV exposure, respectively. The low AO erosion yield of the polysilazane coating results from the formation of a SiO(2)-rich layer on its top surface during exposure, and the VUV radiation is able to create free radical sites on the exposed surface, promoting the formation of a uniform SiO(2)-rich surface layer. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[hu, longfei; li, meishuan; zhou, yanchun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [hu, longfei] chinese acad sci, grad sch, beijing 100039, peoples r china. [xu, caihong; luo, yongming] chinese acad sci, inst chem, beijing 100080, peoples r china.;li, ms (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;mshli@imr.ac.cn
关键词	Polysilazane Low Earth Orbit Atomic Oxygen Vacuum Ultraviolet Radiation Low-earth-orbit High-flux Source Polymers Environment Spectroscopy Plasma Beam
URL	查看原文
WOS记录号	WOS:000268044700002
引用统计	被引频次：70[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31969
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. F. Hu,M. S. Li,C. H. Xu,et al. A polysilazane coating protecting polyimide from atomic oxygen and vacuum ultraviolet radiation erosion[J]. Surface & Coatings Technology,2009,203(22):3338-3343.
APA	L. F. Hu,M. S. Li,C. H. Xu,Y. M. Luo,&Y. C. Zhou.(2009).A polysilazane coating protecting polyimide from atomic oxygen and vacuum ultraviolet radiation erosion.Surface & Coatings Technology,203(22),3338-3343.
MLA	L. F. Hu,et al."A polysilazane coating protecting polyimide from atomic oxygen and vacuum ultraviolet radiation erosion".Surface & Coatings Technology 203.22(2009):3338-3343.