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Effects of Process Parameters on Hydrophobicity of Alumina Surfaces Fabricated by Hard Anodizing
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Effects of Process Parameters on Hydrophobicity of Alumina Surfaces Fabricated by Hard Anodizing

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Abstract:

In the present article, hard anodizing technique was used to prepare alumina films on aluminum alloy substrate. The change of the water contact angles on the surface of the as-anodized samples with the hard anodizing process parameters was studied. The wettability of the alumina films was reinforced by means of controlling the surface microstructure. The rough structures can trap a large amount of air and minimize the real contact area between surfaces and water droplets. The measurement of the wetting property showed that the water contact angle of the as-anodized samples increases from 82° to 130° with adjusting hard anodizing process parameters. In a word, the rough structure on the surface prepared by adjusting hard anodizing process parameters plays a vital role in the constructing of the stable hydrophobic surface on aluminum alloy.

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Periodical:

Advanced Materials Research (Volumes 884-885)

Pages:

64-67

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.884-885.64

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Online since:

January 2014

Authors:

Jing Li, Qiang Li, Jin Kai Xu, Hua Dong Yu*

Keywords:

Hard Anodizing, Hydrophobicity, Process Parameter

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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