Characterization of hydrothermal–electrochemical calcium titanate coatings on titanium and biomedical titanium alloy
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Polycrystalline calcium titanate films up to 300 nm in thickness were grown on titanium and Ti6Al4V substrates by the hydrothermal–electrochemical technique in an autoclave at 200 ◦C. The films examined by x-ray diffraction exhibited reflections from orthorhombic calcium titanate on both substrates. The analysis by x-ray photoelectron spectroscopy showed calcium, titanium and oxygen at binding energies consistent with calcium titanate. The films grown on Ti6Al4V exhibited a small aluminium content but no vanadium. All films showed magnesium incorporation equivalent to a few per cent of the calcium content, which can be useful for the eventual use of the coating for biocompatible applications.
DOI: DOI: 10.1088/0953-8984/16/14/047