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http://dx.doi.org/10.4150/KPMI.2011.18.6.575

Investigation About Surface Microstructure of Aluminum with Change of Voltage, a Period of Treatment and Density of Electrolyte in Micro-Arc Oxidation Treatment  

Yeo, In-Chul (Department of Mechanical Engineering, Incheon University)
Kang, In-Cheol (Department of Nano & Surface Technology, SongdoTechnopark)
Publication Information
Journal of Powder Materials / v.18, no.6, 2011 , pp. 575-582 More about this Journal
Abstract
MAO(Micro-Arc Oxidation) method was used to make $Al_2O_3$ surface on 6063 Al specimen. This study was focused on an influence of voltage, density of electrolyte and a period of treatment on the change of surface microstructure by using SEM(Scanning Electron Microscope), EDS(Energy Dispersive X-ray Spectroscopy). The microstructure shows higher roughness and thicker oxidized layer with increase of voltage and maintaining period of treatment. The density of electrolyte affected a formation of more dense surface and increase of a oxidized layer.
Keywords
MAO; Aluminum; Electrolyte density; Microstructure;
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