Preparation and Characterization of Hydroxyapatite Coatings on Ti6Al4V Alloy by a Sol-Gel Method |
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| Authors: | Wenjian Weng Joao Lopes Baptista |
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| Affiliation: | Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;Department of Ceramics and Glass Engineering, University of Aveiro, Aveiro 3810, Portugal |
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| Abstract: | Hydroxyapatite coatings on Ti6Al4V substrates were prepared by a sol–gel method, and characterized by X-ray diffraction, scanning electron microscopy, and infrared reflection spectroscopy. The coatings obtained at 500°C in air had a hydroxyapatite phase, some of which was carbonated hydroxyapatite, and had a dense and smooth morphology. When the coatings were treated in a simulated body fluid, the coatings had an increase in large hydroxyapatite grains, and a rough and porous morphology. The adhesive strength of the coatings was more than 14 MPa. |
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