Improvement of surface properties of titanium-based implants with micro-arc method

Abstract

E-mail address: muhaffel@itu.edu.tr (F. Muhaffel) Titanium and its alloys have high mechanical properties, superior corrosion resistance, bone-like elasticity module, low density and high bio-compatibility. These properties make them preferable in medical applications due to their wide application fields. Titanium oxide layer that occurs on the surface is bio-compatible however the most important issue of bio-inert materials to improve bone–tissue binding after implantation. This situation is affecting the success of implantation. In order to provide the bio-active surface in medical titanium alloys, it is determinedly studied to form a hydroxyapatite layer on a titanium oxide layer. To ensure the formation of hydroxyapatite, micro-arc oxidation method is used by many researchers nowadays. In this study, the aim is to develop a microporous, rough and antibacterial surface on Ti6Al4V alloy via micro-arc oxidation process. Different amount of silver added to micro-arc oxidation solution and examined the antibacterial effect of silver concentration.