2000•Journal of Tianjin University Science and TechnologyRequires access

INVESTIGATION OF ALUMINUM ANODIZING IN PHOSPHORIC ACID SOLUTION AT CONSTANT VOLTAGE

Guo Wei He

Abstract

The anodizing process of aluminum in phosphoric acid solution has been investigated. The results indica ted that the thickness of the barrier layer,the diameter of the cell and pore in the porous alumina film all increase with the increase of applied voltage.The reason is associated with the migration of the ions in the film.

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Key concepts: Anodizing, Phosphoric acid, Aluminium, Materials science, Barrier layer, Layer (electronics), Porosity, Ion