Formation and Properties of Bioactive Surface Layers on Titanium

摘要

The plasma electrolytic oxidation technique was used to form a calcium phosphate coating containing hydroxyapatite on a titanium implant surface. The composition, morphology, and anticorrosion and mechanical properties of the obtained layers were studied. The optimal conditions of the polarization mode and electrolyte composition were found. Experiments performed in vivo and in vitro showed that the bioac-tivity of deposited films depends on the chemical composition (concentrations and Ca/P ratio) and the surface roughness of calcium phosphate layers.