Characteristics of hydroxyapatite coating on Ti-6Al-4V substrate fabricated via sequent H2O2-oxidizing and RF-sputtering processes

In this study, we created a hydroxyapatite (HAp) coating layer on top of the Ti-6Al-4V substrate via sequent H2O2- oxidizing and RF-sputtering processes and determining the effect of H2O2-oxidizing state to the adhesion between HAp coating layer and Ti-6Al-4V substrate. The results showed that the H2O2-oxidized Ti-6Al-4V surface is rough and porous, which increases the adhesion strength of the HAp coating layer on the alloy substrate.