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Structure and element composition of anodic alumina films formed in high concentrated sulfuric electrolyte

Abstract

Porous aluminium anodization process has been investigated in 63 wt % sulfuric electrolyte. Porous alumina formed at anodic voltages till 16 V had the «honey comb» cell structure while porous alumina formed at anodic voltages more than 16 V displayed the tubular cell structure with thickness expansion factor more than 2,5. The obtained results can be explained by resulted of Al(OH)3 formation during anodization process at high electric field inside anodic films.

About the Authors

S. K. Lazarouk
Белорусский государственный университет информатики и радиоэлектроники
Belarus


O. V. Kupreeva
Белорусский государственный университет информатики и радиоэлектроники
Belarus


V. B. Vysotski
Белорусский государственный университет информатики и радиоэлектроники
Belarus


A. I. Chavychelau
Белорусский государственный университет информатики и радиоэлектроники
Belarus


A. S. Letoho
Белорусский государственный университет информатики и радиоэлектроники
Belarus


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Review

For citations:


Lazarouk S.K., Kupreeva O.V., Vysotski V.B., Chavychelau A.I., Letoho A.S. Structure and element composition of anodic alumina films formed in high concentrated sulfuric electrolyte. Doklady BGUIR. 2014;(3):5-11. (In Russ.)

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ISSN 1729-7648 (Print)
ISSN 2708-0382 (Online)