Study the Structure and Properties of Antibacterial TiO2/HAP Coating onto Ti Alloy Using Electrophoretic Deposition Technique for Biomedical Application

Abstract

In the present study, single layer, titanium dioxide (TiO2) and TiO2/HAP nano-particles coatings were fabricated by electrophoretic deposition on titanium alloy Ti-6Al-4V. As a result of accidents, diseases and other causes, efforts and research are continued to reach results closest. The damaged that occur to some of them in the living of the organism in general and the human being in particular, this can be done throughout the existing the implantation of medical minerals, ligaments of bones, teeth and other parts that compensate. Through science, opportunities and experiments have been provided to obtain satisfactory results in terms of the biocompatibility of titanium alloy Ti-6Al-4V implants and their alloys, which are classified as one of the best biocompatible materials within vivo tissues. This study aims to increase improve this alloy antibacterial properties by coating the surface with a bio ceramic (TiO2 and TiO2/HAP) nano-powders. were made on titanium alloy Ti-6Al-4V substrate using an electrophoretic deposition (EPD) technique, charged particles suspended in ethanol at a concentration of 50 g/L, for each powder with ideal conditions of 20V and a deposition time of (4 min). The surface characteristics of coated substrates, such as micro-hardness, surface roughness and wettability antibacterial test were evaluated and compared to that of the uncoated substrates. The results showed that the EPD is a promising technique to create a bio coating on titanium alloy Ti-6Al-4V substrate with outstanding structure and properties for biomedical applications. The results demonstrated that the coated sample under coating conditions (20V, 4min) which is close to the ratio found in living bone. The results also of the wettability test showed that the contact angle of the deposited paint is 5.9 degrees, and this positive result is useful for biomedical applications and proved that the coating is hydrophilic.