Conversion coating on stainless steel as a support for electrochemically induced alumina deposit

被引:20
作者
Aries, L
Alberich, L
Roy, J
Sotoul, J
机构
[1] Equipe de Metall. Physique, Laboratoire des Matériaux, Ecl. Natl. Sup. de Chimie, 31077 Toulouse Cedex
关键词
alumina; electrolytic treatment; stainless steel; ceramic film; electrochemical study;
D O I
10.1016/0013-4686(96)00091-6
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Conversion coatings on stainless steel were used asa support for alumina coatings deposited by electrolytic treatment from an aqueous solution of aluminium sulphate. The conductive conversion coating with its particular morphology facilitates the reduction reactions responsible for the increase of the pH at the surface and acts as a porous electrode allowing favourable local pH conditions for aluminium oxyhydroxide deposition. The effects of potential, current density, time, temperature and stirring on coating weight were studied. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:2799 / 2803
页数:5
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