Abstract
In this study, morphology changes of plasma electrolytic oxidized (PEO) Ti-6Al-4V alloy in the electrolytes containing Sr and Si ions were researched using field-emission scanning electron microscope, Image J program thin film X-ray diffraction, and energy dispersive X-ray spectroscopy. Pulsed DC power supplied Ti-6Al-4V alloy was used at a 280 V for 3 minutes in the electrolyte containing Sr and Si ions. To determine cell growth, human embryonic kidney cells 293 were grown at a density of 2 × 105 cells per 1.0 ml in well plates. The pore size decreased, as the content of Sr ion increased, whereas, the number of pores per area increased. The Ca/P ratio of PEO treated in electrolyte containing high Sr concentration showed the higher than those of in electrolyte containing low Sr concentration. The peak of HA is shifted to left side, as the concentration of Sr increased. Also, the number of cells increased, as the concentration of Sr increased.
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