Abstract
The prism-shaped perovskite structure of CaTiO3 on titanium surface was fabricated by an anodic-hydrothermal method. Firstly, the TiO2 film was formed on Ti substrate by electrochemical anodization. Secondly, the anodized TiO2/Ti substrate was used as a template for the hydrothermal synthesis of CaTiO3 coating. The samples were characterized with X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy and energy-dispersive X-ray spectrum. The experimental results show that anodic TiO2 substrate and alkali environment are key factors for the formation of prism-shaped CaTiO3, and the NaOH concentrations plays an important role in determining the size and shape of CaTiO3 structures. Meanwhile, the CaTiO3 surfaces possess the better deposition ability of Ca and P in vitro.
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