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Anodising Aluminum

I am a undergraduate chemistry student at De Montfort University, Leicester, U.K. As my final year project I am looking at methods for altering the anodised finishes of aluminum films. Can anyone help me? I am especially looking at ways of increasing pore sizes in the anodised film.

Prakash Patel
- Leicester
2001

The oxide structure is dependent on which type of anodizing you are performing. Chromic Acid Anodizing typically has a smoother structure than Phosphoric which has a greater degree of micro-roughness. Chromic Acid Anodizing oxides have been altered by varying temperature and by using post anodize phosphoric acid etch amongst others.

Ref: A Csanady et al J. Mater. Sci. Vol 15 1980

Ciaron Murphy
- Great Britain
2001

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