Formation of Hydroxyapatite-Titania Nanostructured Bio-Ceramic Films by Plasma Electrolyte Oxidation

Including a bioactive coating can improve the Ti-based implants and hard tissues bonding [۱]. It has been demonstrated that the bonding of hard tissue and Ti-based implants can be improved by Hydroxyapatite (Ca۱۰(PO۴)۶(OH)۲, HAp) which provides bioactivity and osteoconductivity. Co-existence of HAp and TiO۲ improves adhesion and corrosion resistance and creates a good combination of biochemical stability and mechanical properties of Ti-based implants [۲]. Plasma electrolyte oxidation (PEO) is an advanced technique of HAp layer production that has raised a lot of attention in the past decade. PEO is an electrochemical process to deposit ceramic layers on light metal substrates. The main characteristic of this technique is producing electrical discharges along with plasma in the vicinity of metal surface [۳].In this research, Dependence of PEO processing parameters and physicochemical characteristics of synthesized HAp-TiO۲ nanostructured composite layers on Ti surface were investigated.

کلیدواژه ها:

Plasma electrolyte oxidation ، Hydroxyapatite ، Titania ، Nanostructures