Observing of mechanical features of hydroxyapatite coating using glycolic acid - sodium glycolate buffer system

The use of implant materials is one of the important surgical interventions in the treatment of disorders that are congenital and acquired deformities in musculoskeletal system. Metallic biomaterials within these implant materials are often preferred because of their proximity to the mechanical properties of the bone. In the implantation process, the surfaces of these alloys are coated with ceramic based biomaterials to increase the bioactivity and biocompatibility properties. In this study, it is aimed to create hydroxyapatite (HA) coating that is completely harmonious with human blood plasma environment, on Ti6Al4V alloy, using glycolic acid - sodium glycolate buffer system with biomimetic method for the first time in literature. Coating was realised inside synthetic body fluid (SBF) with waiting periods of 24, 48, 72 and 96 hours. Relating to the coatings obtained by biomimetic method, thickness, surface smoothness, microstructural, young modül spesifications have been determined and than have been calculated fracture toughnesses. Micro structure of coating surfaces has been analysed by using Scanning Electron Microscope (SEM), the elementary analyses namely Energy Dispersive X-ray Spectroscopy (EDS) for the surfaces of coating have been determined and X-Ray Diffraction (XRD) analysis have been conducted for obtaining information regarding phases and the concentrations of the phases. The results obtained from the study have been evaluated and discussed.