Improvement of Corrosion and Osseointegration Characteristics for Ti6Al4V Alloy by Coating with Polyetheretherketone (Peek) an‎d Nanohydroxyapatite Using Electrophoretic Deposition for Biomedical Applications

In this research Ti6Al4V alloy will coated with polyetheretherketone (PEEK) and nanohydroxyapatite composite. The coating will be achieved by electrophoretic deposition using solution a consist that of 1 gm PEEK and 6 gm nanohydroxyapatite in 50 ml of absolute ethanol and 0.2 gm iodine. The samples were deposited and immersed in SBF for5, 10, and15 minutes, then heat treated at 250 ºC for 1hr. under air atmosphere in the furnace. The samples that will tested by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) and corrosion test will include open circuit potential (OCP), polarization curve (tafel) and electrochemical impedance spectroscopy (EIS). The samples will be immersed in simulated body fluid (SBF) for 2 weeks. The sample will test by XRD and SEM and corrosion test and will include open circuit potential (OCP), polarization curve (tafel) and electrochemical impedance spectroscopy (EIS) again to evaluate the results of the osseointegration and corrosion characteristics.