Characteristic of Microarc Oxidized Coatings on Titanium Alloy Formed in Electrolytes Containing Aluminate and ZrO2 Particles
Microarc oxidation (MAO) is a relatively convenient and effective technique to deposit ceramic coatings on the surfaces of Al, Ti, Mg and their alloys. This technique can introduce various desired elements into titania-based coatings and produce various functional coatings with a porous structure. Microarc oxidized (MAO) TiO2-based coatings on titanium alloy were formed in electrolytes containing aluminate and ZrO2 particles. The phase composition of the samples was analyzed by glance-angle X-ray diffraction and the surface morphologies of the samples were observed by a scanning electron microscopy (SEM). In addition, the element concentrations on the surfaces of the samples were measured by an energy dispersive X-ray spectrometer. The experiment results indicated that: MAO coatings, which are porous structures and exhibit good interfacial bonding to the substrate, may possess specific surface structures such as crystal phase, non-equilibrium solid and complex mixed-compounds since complex plasma physical and chemical reactions.
Wei Pan and Jianghong Gong
Y. S. Zhong et al., "Characteristic of Microarc Oxidized Coatings on Titanium Alloy Formed in Electrolytes Containing Aluminate and ZrO2 Particles", Advanced Materials Research, Vols. 105-106, pp. 502-504, 2010