微弧氧化-电化学共沉积磷酸钙类涂层的研究  

Micro-Arc Oxidation-Electrochemical Co-precipitation of Calcium Phosphate Coatings on Titanium Alloys

作　　者：曲立杰[1] 王颖慧[2] 马臣[1] 

机构地区：[1]佳木斯大学材料科学与工程学院,黑龙江佳木斯154007 [2]遵义播宇钛材有限责任公司,贵州遵义563004

出　　处：《佳木斯大学学报（自然科学版）》2009年第2期240-241,255,共3页Journal of Jiamusi University：Natural Science Edition

基　　金：佳木斯大学科研项目(L2007-86)

摘　　要：本项工作采用电沉积的方法在微弧氧化后的钛基体上制备了磷酸钙类涂层.室温条件下在300V恒压下阳极氧化1min,形成均匀孔洞的钛片,孔洞周围有较规则的突起,在此基础上进行电沉积不同时间获得磷酸钙类涂层.用扫描电子显微镜(SEM)、X射线衍射(XRD)等手段对涂层进行了表征,体外模拟后涂层表面形成了羟基磷灰石,锐钛矿型TiO2,金红石型TiO2.涂层的磨损试验结果表明,该涂层的摩擦磨损性能得到了极大的改善.Calcium phosphate coating was made on the Ti - 6Al - 4V surface which was treated by micro - arc oxidation （MAO） by means of electrochemical deposition. Uniformity pores, which owned regular salience around pores, were formed on the Ti - 6Al - 4V, followed by deposited at different deposition time. Anode oxidation was used at 300V voltage for lmin. Electrochemical deposition was conducted at current densities of 25 - 30 mA/cm^2 and 310K - 315K for 10min and 60min, respectively. The surface morphology was observed by scanning electron microscopy （JSM- 6360LV）. The phases of coatings were analyzed by X- ray Diffraction （XRD）. As the result, the coatings soaked by simulated body fluid composed of hydroxyapatite, Anatase, Rutile. Coatings by MAO - electrochemical deposition are superior in resisting wear compared with coatings by electrochemical deposition. SEM observation of the morphologies indicates that deposition time was shortened.

关 键 词：羟基磷灰石 钛 电沉积 微弧氧化 

分 类 号：TQ174.1[化学工程—陶瓷工业]