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Oxide Layer Modification of Mg-Al Alloy Coated by Plasma Electrolytic Oxidation Using Zirconia Particles

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Abstract:

The paper reported the effect of zirconia incorporation on the oxide layer modification of the valve metal such as magnesium coated by plasma electrolytic oxidation (PEO). To incorporate zirconia particles into the oxide layer, PEO coatings were carried out under AC condition in electrolytes containing zirconia powder. After PEO coatings, structure observation revealed that a number of zirconia particles were distributed uniformly throughout the oxide layer while the size and distribution of pores remained unchanged as compared to the results coated by PEO without zirconia. It was found that fine zirconia particles incorporated into the oxide layers played an important role in enhancing the anti-corrosion properties of bare metal.

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Advanced Materials Research II View Preview

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Periodical:

Advanced Materials Research (Volumes 463-464)

Pages:

406-409

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.463-464.406

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Online since:

February 2012

Authors:

D.Y. Choi, J. Hwang, K.M. Lee, K.R. Shin, Young Gun Ko, D.H. Shin

Keywords:

Mg-Al Alloy, Oxide Layer, Plasma Electrolytic Oxidation (PEO), Zirconia

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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