Abstract
Plasma spray grade Al2O3-13TiO2 and ZrO2 powders were blended physically in different proportions (80 wt% Al2O3-13TiO2 + 20 wt% ZrO2, 20 wt% Al2O3-13TiO2 + 80 wt% ZrO2 and 50 wt% Al2O3-13TiO2 + 50 wt% ZrO2) and plasma sprayed on biomedical Ti-13Nb-13Zr alloy using identical plasma spray parameters. Microstructural and phase analyses of the as-sprayed coatings were carried out using scanning electron microscopy and X-ray diffractometry. Results showed that the 80% Al2O3-13TiO2 + 20% ZrO2 coating had enhanced corrosion and wear resistance compared to the other two compositions and appeared to be a propitious coating for biomedical application.
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