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Microstructural characterisation of biocompatible sol-gel derived vanadium doped TiO2 on Ti substrates

By S. Marlafeka, F. Allison, D.M. Grant, P.G. Harrison and Paul D. Brown


Sol-gel derived pure titania is compared with vanadium and / or aluminium modified titania deposited by spin coating on pure titanium substrates annealed at 300C and 650C. Reflection high-energy electron diffraction indicated the presence of anatase from the surface layers of samples annealed at 300C with a transition to rutile with increasing annealing temperature and addition of vanadium. Cross-sectional transmission electron microscopy indicated a gradation of Ti-O phases through the layer with the dominant presence of rutile. Aluminium was found to inhibit grain growth while vanadium promoted crystallisation

Publisher: IOP Publishing Ltd
Year: 2001
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Provided by: Nottingham ePrints

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