Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp

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	Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp
	X. W. Yu; C. W. Yan; C. N. Cao
	2002
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	76 期号:3 页码:228-235
摘要	The rare earth (RE) sealing procedure of the porous film of anodized aluminum based metal matrix composites (MMC) Al6061/SiCp was studied with the field emission scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy (EDS). The results show that RE solution gets into the pores of the anodized coating to form cerium oxide/hydroxides precipitation at the beginning of sealing. At the same time, the spherical deposits formed on the surface of the anodized coating create a barrier to the permeation of RE solution getting into the pores. When the pore-structured anodizing film is covered all with the spherical deposits. RE conversion coating will form on the surface of the anodized coating. The reaction of the coating formation was investigated by employing cyclic voltammetry. The results indicate that accelerator H2O2 acts as the source of O-2 by carrying chemical reaction in course of coating formation. In the mean time, it may carry electrochemical reaction to generate alkaline condition to accelerate the coating formation The porous structure of the film is beneficial to the precipitation of the cerium hydroxides film. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst phys, lab solid state ion, beijing 100080, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;yu, xw (reprint author), chinese acad sci, inst phys, lab solid state ion, pob 603, beijing 100080, peoples r china
关键词	Rare Earth Sealing Anodized Al6061/sicp Scanning Electron Microscope Cyclic Voltammetry Stainless Aluminum
URL	查看原文
WOS记录号	WOS:000176920200003
引用统计	被引频次：27[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/321006/36514
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. W. Yu,C. W. Yan,C. N. Cao. Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp[J]. Materials Chemistry and Physics,2002,76(3):228-235.
APA	X. W. Yu,C. W. Yan,&C. N. Cao.(2002).Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp.Materials Chemistry and Physics,76(3),228-235.
MLA	X. W. Yu,et al."Study on the rare earth sealing procedure of the porous film of anodized Al6061/SiCp".Materials Chemistry and Physics 76.3(2002):228-235.