INVESTIGATION ON THE COMPONENTS,APPEARANCE ANDSTRUCTURE OF HIGH VOLTAGE ANODIZATION FILM ON ALUMINUM

J Chin Soc Corr Pro

2001, Vol. 21

Issue (3): 177-181 DOI:

Research Report

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INVESTIGATION ON THE COMPONENTS,APPEARANCE ANDSTRUCTURE OF HIGH VOLTAGE ANODIZATION FILM ON ALUMINUM

Zhaohui Hou;Jianping Liu;Yan Xv

湖南大学化学化工学院

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Abstract Components,appearance and structure of high voltag e anodization film,which anodized in mixed electrolyte of H3PO4 and Na2WO 4,were analyzed by XPS,SEM and XRD methods.XPS results showed that the main co mponents of the film were O,Al,P and W.SEM test indicated that the microstructur e of the film was like a web.The porosity was 10 per μm2,pore size was 015 ～0.20 μm.The film connected with the substrate in a jagged interlocking patter n and could be divided into two layers,the porous layer above and the compact la yer below.Many cracks were observed in both layers under higher magnification SE M study.XRD analysis found that it was a noncrystal structure.Aluminum oxides, mixed up with some phosphates and tungstates,were the main phases in the film.

Key words: aluminum high voltage anodization film structure and c omposition

Received: 15 March 2000

ZTFLH:

TQ153.6

Corresponding Authors: Zhaohui Hou

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Zhaohui Hou; Jianping Liu; Yan Xv. INVESTIGATION ON THE COMPONENTS,APPEARANCE ANDSTRUCTURE OF HIGH VOLTAGE ANODIZATION FILM ON ALUMINUM. J Chin Soc Corr Pro, 2001, 21(3): 177-181 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2001/V21/I3/177

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