Plasma spray deposition of ha–tio2 Composite Coating on Ti–6Al–4V Alloy for Orthopedic Applications

Abstract

A biomimetic nanoporous 50HA–50TiO2 composite surface has been put on a plasma deposition process with the orthopedic use of Ti–6Al–4V alloy in the present research paper. Scanning electron microscope (SEM) fitted out of energy-dispersive spectroscopy (EDS) and X-ray (XRD) was used for the analysis of the coated morphology, elementary, and phase composition of the test. The results show that Ti–6Al–4V’s HA/TiO2-coated surface shows the natural bone-like nanoporous morphology that was favorable for bone growth in the host body around the implant. The study of EDS and XRD revealed that the deposited layer includes Ca, P, O materials, as well as the essential parent product components (Ti, Al, V), and bioactive phase oxides (TTCP, TCP, rutile) formed on the substrate surface. This corrosion resistance and bioactivity of the Ti–5Al–4V was increased significantly. The composite coating tests of nanoporous material have shown that the hardness and roughness values of the HA/TiO2 coating on the surface of the Ti–6Al–4V substratum are 277 HV and 3.59 μm. Overall, the HA–TiO2 coating can be concluded that the Ti–6Al–4V alloy surface has been tailored to the requirements of orthopedic implants.