Abstract

Investigations are carried out towards reanodization of porous anodic oxide films on aluminium formed in aqueous solutions of sulphuric, oxalic and chromic acid. These films are prepared in a way to have one and the same porosity. It is found out that in case of equal porosity the slopes of the kinetic voltage-time curves recorded during reanodization are different. The effect of the anionic species incorporated from electrolyte solution into the porous template could be a probable explanation for the dissimilar rates of barrier layer growth.

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