Effect of Cu2+ Doped in Sol on Properties of Sealed Film on Anodized Al Alloy

Qi Zhou; Xin Wang; Li Fang Zhang; Xin Ma; H.B. Li; C.L. He; P. Zhao

doi:10.4028/www.scientific.net/AMM.33.290

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 33Effect of Cu2+ Doped in Sol on Properties of...

Effect of Cu²⁺ Doped in Sol on Properties of Sealed Film on Anodized Al Alloy

Abstract:

The corrosion resistance of anodic oxide film sealed with alumina sol can improved. Cu2+ was put into the alumina sol so that antibacterial property was endowed to the sealed film. Composition, morphology and corrosion resistance of sealed film doped with Cu2+ were studied by DSC, EIS and SEM etc. The film sealed by doping Cu2+ in sol has less and narrower crack on the surface than the one without Cu2+. The gel without Cu2+ has more chemical reaction and phase transition than that with Cu2+ in the heating process observing from the DSC curve, which results in more cracks on the surface of sealed films without Cu2+. Sol doped with Cu2+ can enhance corrosion resistance inferred from the polarization curve, in a way. The films sealed by sol with Cu2+ have a good antibacterial on Staphylococcus aureus. The antibacterial rate is more than 99%. The results show sol doped Cu2+ not only improve corrosion resistance but also have antibacterial property.

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Periodical:

Applied Mechanics and Materials (Volume 33)

Pages:

290-294

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.33.290

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Online since:

October 2010

Authors:

Qi Zhou, Xin Wang, Li Fang Zhang, Xin Ma, H.B. Li, C.L. He, P. Zhao

Keywords:

Anodize, Antibacterial, Cu²⁺, Seal, Sol

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