负向电压对纯钛微弧氧化膜层结构特征的影响  

Effect of Cathode Voltage on Structure of Micro-Arc Oxidation Films of Pure Titanium

作　　者：程海梅[1] 宁成云[1] 郑华德[1] 谭帼馨[1,2] 马强[1] 张德贵[1] 

机构地区：[1]华南理工大学,广东广州510641 [2]广东工业大学,广东广州510006

出　　处：《稀有金属材料与工程》2009年第6期1116-1118,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(50502015,50872035);教育部“新世纪优秀人才”基金项目(教技函[2006]6)资助

摘　　要：采用微弧氧化技术，以β-甘油磷酸钠和乙酸钙混合溶液为电解液，在固定正向电压（450v）和氧化时间（5min）等参数情况下，研究了负向电压对纯钛表面微弧氧化膜层的相组成和形貌的影响规律。结果表明：负向电压为100～200V时，微弧氧化膜层较均匀，膜层由二氧化钛和磷酸三钙组成；负向电压升至300V，膜层表面被严重烧蚀，其主要物相为钛酸钙。The composite coatings on commercially pure titanium substrate were prepared by micro-arc oxidation （MAO） in electrolytic solution containing calcium acetate and fl-glycerol phosphate disodium salt pentahydrate （fl-GP） adopting the fixed anode voltage of 450 V and the oxidizing time of 5 min. The effects of cathode voltage on phase and composition morphology of MAO films were investigated. The results show that： the surface of MAO films are uniform and the components of the films are composed of TiO2 and Ca3 （PO4）2 while cathode voltage varies from 100 V to 200 V. When cathode voltage is 300 V, the surface of the MAO films are destroyed and the predominant component is CaTiO3.

关 键 词：微弧氧化(MAO) 负向电压 膜层 形貌 相组成 

分 类 号：TG174.4[金属学及工艺—金属表面处理]