Hydroxyapatite bioceramic coatings prepared by hydrothermal-electrochemical deposition method
Hydroxyapatite ceramic coating has the advantages of good biocompatibility and bioactivity.In the present paper,hydroxyapatite ceramic coating was successfully prepared on Ti-6Al-4V alloy by the hydrothermal-electrochemical deposition method with constant voltage model.The phases of deposits were analyzed by X-Ray Diffraction.The crystallinitys vs.electrolyte temperature were discussed.The microstructures of hydroxyapatite coating were observed by Scanning Electron Microscope.Results showed that the phases,crystallinity and morphologies of deposits were influenced by electrolyte temperature (100℃,120℃,140℃,160℃,180℃ and 200℃).The special hydrothermal environment can lower the crystallization temperature of HA.The crystallinity of HA increases firstly and then decreases with the increase of temperature.There is little of HA deposited on the Ti-6Al-4V surface when the electrolyte temperature is 100 .The HA deposition increases with the increase of the electrolyte temperature.And the HA morphologies are influenced by the temperature.
hydroxyapatite coating hydrothermal-electrochemical electrolyte temperature crystallinity
HE Daihua LIU Ping LIU Xinkuan CHEN Xiaohong MA Fengcang LI Wei
School of Materials Science & Engineering,University of Shanghai for Science and Technology,Shanghai,200093,China
国内会议
北京
英文
62-66
2013-09-10（万方平台首次上网日期，不代表论文的发表时间）