Preparation and Electrophoretic deposition of Zirconium dioxide nano-composite on Ti-6Al-4V for biomedical applications

Abstract: The advancement of nano-science and nano-technology produces intriguing changes for the existing materials applications. In biomaterial science, especially inorganic materials such as silica, zinc oxide, zirconium dioxide, and titanium dioxide have been prepared by various methods including sol-gel synthesis. In sol-gel synthesis, nano-particles are produced and have been used for various applications and applied in surface modification of implantable biomaterials like metals. Ceramic materials are having more biocompatibility, bio-inert, less corrosion resistant properties when implanted into the physiological system. Various coating methods have been proposed of which, Electrophoretic technique (EPD) is an old and convenient method and can be applied in complex shaped structures. In this paper, the sol-gel prepared zirconium dioxide, zinc oxide nano-particles were mixed to attain better hard coatings with antibacterial properties to avoid bacterial contamination during implantation and removal surgery with less interfacial bonding between substrate and tissue when removable implants employed such as bone plates and bone screws. The prepared materials and its composite were characterized by FT-IR, XRD. The corrosion resistant property of the EPD coated Ti-6Al-4V was studied by electrochemical techniques such as polarization (Tafel) and EIS analysis. The results of study was clearly demonstrates a uniform homogeneous hard coating with increased corrosion resistant values comparing to the blank Ti-6Al-4V