Blawert, C., Sah, S.P., Scharnagl, Nico, and Kannan, M. Bobby (2015) Plasma electrolytic oxidation/micro-arc oxidation of magnesium and its alloys. In: Sankara Narayanan, T.S.N., Park, Il-Song, and Lee, Min-Ho, (eds.) Surface Modification of Magnesium and its Alloys for Biomedical Applications, Volume II: modification and coating techniques. Woodhead Publishing Series in Biomaterials, 90 . Elsevier, Cambridge, UK, pp. 193-234.

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Abstract

The plasma electrolytic oxidation (PEO) process which converts the surface of magnesium alloys into a hard ceramic like topcoat has been found to be capable of providing an enhanced wear and corrosion resistance. By changing the process parameters e.g. electrolyte composition, current density, duration etc. a wide variety of coatings can be produced and adapted to applications ranging from automotive to medical. However, latter applications are still limited. The present chapter will provide a state-of-the-art overview of PEO processing for magnesium biomedical applications including processing parameters, coating compositions and properties.

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