Preparation of Hydroxyapatite-titanium Dioxide Coating on Ti6Al4V Substrates using Hydrothermal-electrochemical Method

作     者：何代华 WANG Pu LIU Ping LIU Xinkuan MA Fengcang LI Wei CHEN Xiaohong ZHAO Jun YE Hong 

作者机构：School of Materials Science & EngineeringUniversity of Shanghai for Science and Technology School of Mechanical EngineeringUniversity of Shanghai for Science and Technology Key Laboratory of Inorganic Coating MaterialsChinese Academy of Sciences School of Traffi c and Transportation EngineeringChangsha University of Science & Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2016年第31卷第2期

页      面：461-467页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Funded in part by the Key Laboratory of Inorginic Coating Materials Chinese Academy of Sciences(No.KLICM-2014-11) the Shanghai Municipal Natural Science Foundation Sponsored by Shanghai Municipal Science and Technology Commissions(No.15ZR1428300) 

主　　题：Ti6Al4V HA TiO_2 coating anodic oxidation hydrothermal electrochemical method 

摘      要：Ti6Al4V substrates were anodized in a 0.5 mol/L H_2SO_4 solution at applied voltages of 90-140 V.A hydroxyapatite-titanium oxide（HA-TiO2）coating was then deposited on the anodized Ti6Al4 V substrates via a hydrothermal-electrochemicalmethod at a constant *** obtained films and coatings were characterized by X-ray diffraction,scanning electron microscopy,energy-dispersive X-ray spectroscopy,and Fourier-transform infrared *** microstructures of the porous films on the Ti6Al4 V substrates were studied to investigate the effect of the anodizing voltage on the phase and morphology of the HATiO_2 *** results indicated that both the phase composition and the morphology of the coatings were significantly influenced by changes in the anodizing ***-TiO_2 was directly precipitated onto the surface of the substrate when the applied voltage was between 110 and 140 *** coatings had a gradient structure and the HA exhibited both needle-like and cotton-like *** amount of cotton-like HA structures decreased with an increase in voltage from 90 to 120 V,and then increased slightly when the voltage was higher than 120 *** orientation index of the（002）plane of the coating was at a minimum when the Ti6Al4 V substrate was pretreated at 120 V.