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Preparation and Characterization of the HAF/YSZ Gradient Composite Coatings on Ti6Al4V Surface |
LI Sumin1, ZHANG Qin1, ZHAO Yutao1, LIU Xiaoyan1, ZHANG Zhao1 |
1.School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013
2.Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212013 |
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Cite this article:
LI Sumin ZHANG Qin ZHAO Yutao LIU Xiaoyan ZHANG Zhao. Preparation and Characterization of the HAF/YSZ Gradient Composite Coatings on Ti6Al4V Surface. Chin J Mater Res, 2010, 24(5): 555-560.
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Abstract The gradient hydroxylfluorapatite composite coatings on Ti6Al4V substrate were deposited by radio frequency magnetron sputtering. XPS, XRD, IR and SEM were used to investigate the fluorine content, phase composition and surface morphology of coatings. The results show that the fluorine shows a gradient distribution. The Ca:P molar ratio decreases with the increase of fluorine content in the coating.The biological activity and stability of the gradient composite coatings were analysed in siulated body fluid(SBF). Results show that the new apatite growing on the HAF/YSZ gradient composite coatings is the bone-like apatite under SBF conditions, and fluoride can promote the development of apatite phase. Fluoride content in gradient distribution can effectively improve the anti-solubility and bonding stength. The biological activity and stability of HAF/YSZ are better than that of HA and single fluoride content coatings.
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Received: 11 May 2010
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Fund: Supported by Natural Science Foundation of Jiangsu Province No. BK2003051. |
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