FABRICATION AND CHARACTERIZATION OF ALKOXY-DERIVED NANOPHASE TIO2 COATINGS

Alkoxy-derived coatings of titanium oxide, up to 40 mu m thick were pr epared on Ti6Al4V surgical alloy substrates in methanolic electrolytes at room temperature by an electrochemical method. The chemical compos ition and structure of these coatings were determined by X-ray photoel ectron spectroscopy (XPS), glancing angle X-ray diffraction (XRD) and scanning electron microscopy (SEM). As-prepared oxide coatings were de nse, adherent and essentially non-stoichiometric. X-ray diffraction an alysis indicated that the oxide coatings may consist of ultrafine crys tallites. These coatings exhibited considerable plastic deformation at room temperature.