Incorporation and migration of Cr3+ and PO43- species in anodic alumina

被引：10

作者：

Shimizu, K

Brown, GM

Habazaki, H

Kobayashi, K

Skeldon, P

Thompson, GE

Wood, GC

机构：

[1] Univ Manchester, Inst Sci & Technol, Ctr Corros & Protect, Manchester M60 1QD, Lancs, England

[2] Keio Univ, Chem Lab, Yokohama, Kanagawa 223, Japan

[3] Keio Univ, Fac Sci & Technol, Dept Chem, Yokohama, Kanagawa 223, Japan

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

CORROSION SCIENCE | 1999年 / 41卷 / 10期

基金：

日本学术振兴会;

关键词：

anodic; alumina; migration;

D O I：

10.1016/S0010-938X(99)00031-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Through the use of a thin layer covering an aluminium surface, obtained by electropolishing and subsequent dipping in a hot CrO3-H3PO4 solution, as a source for incorporation of Cr3+ and PO43- species, the migrations of the respective species in growing anodic alumina have been examined successfully. It was found that the Cr3+ species migrate outward and the PO43- species migrate inward. The rates of migration of Cr3+ species relative to that of Al3+ ions and PO43- ions relative to that of O2- ions are 0.74 and 0.51, respectively. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1971 / 1976

页数：6

共 12 条

[1] MECHANISM OF ANODIC OXIDATION [J].