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| Research on the Preparation and Bioactivity of FHA Coatings |
| ZHOU Hongming, ZENG Lin, YI Danqing, GUO Yanjun, LIU Furong |
| School of Materials Science and engineering, Central South University, Changsha 410083 |
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Cite this article:
ZHOU Hongming ZENG Lin YI Danqing GUO Yanjun LIU Furong. Research on the Preparation and Bioactivity of FHA Coatings. Chin J Mater Res, 2010, 24(6): 643-648.
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Abstract FHA (Ca10(PO4)6(OH)F) powder of F doping Ca10(PO4)6OH)2 (HA) was synthesized by the precipitation method, and the FHA coating was prepared on the surface of the titanium alloy (Ti6Al4V) by electrophoretic deposition. XRD, SEM and EDS were used to investigate the influences of the substrate pretreatments on the coating morphology and binding force of the coatings, and the bioactivity of the coatings was also investigated. The results show that there are microcracks on the surface of the coatings pretreated by acid treatment, however, the microcracks are not found on the surface of the coatings treated by alkali treatment after acid treatment, having higher adhesion than those coatings pretreated by acid treatment. Bone-like calcium deficiency apatite, which grown like petal, with several hundred nanometers in length, formed on the surface of FHA coating after soaking, showing an excellent biological activity.
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Received: 22 July 2010
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| Fund: Supported by the Major Project of International Cooperation of Hunan Province No. 2008WK2005, Special Finance Scheme of Post Doctoral Education of China No.200801350 and Research Fund for the Doctoral Program (for New Teacher) of Higher Education of China No.200805331062. |
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