Surface Modification of Titanium Alloy by Titania/Silver Multilayers Coating for Biomedical Application

Abstract

This research aims to modify the Ti alloy by anodic oxidation to enhance its surface properties, especially corrosion resistance for biomedical applications and DC sputtering plasma to close the porosity. Study the response to the plasma technique to deposit suitable coating layers of silver on a medical Ti alloy to enhance its surface properties for biomedical applications. The surface of Ti 13Nb 13Zr alloy was engineered with a (TiO₂) by anodization and silver (Ag) by DC sputtering deposition; the tests are the optical microscope, scanning electron microscope, XRD, EDS, AFM, and contact angle; the results obtained in are presented and discussed to demonstrate the effect of surface modifications type each part of work will present and follow by the discussion of results. The results of XRD show two phases, TiO₂ and Ag; SEM results show coating thickness and the interface between TiO₂ and silver; EDS illustrated the weight percent of Ti, O, and Ag; AFM shows surface roughness of each coating layer, as contact angle showed the wettability of substrate or each layer surface and study corrosion behavior of each sample, while adhesion strength shows the efficiency of the coating layer.