电压对钛表面微弧氧化陶瓷层特性的影响  

Effect of Voltage on Properties of the Ceramic Coatings Prepared by Micro-arc Oxidation on Titanium

作　　者：刘世敏[1,2] 杨贤金[1,3] 崔振铎[1] 朱胜利[1,3] 魏强[1,3] 

机构地区：[1]天津大学材料学院,天津300072 [2]天津商业大学商学院,天津300134 [3]天津市材料复合与功能化重点实验室,天津300072

出　　处：《材料导报》2011年第16期8-11,共4页Materials Reports

基　　金：天津市科技支撑计划(09ZCKFGX29100);国家自然科学基金(50901051)

摘　　要：为了提高钛表面的生物活性,利用微弧氧化技术在钛表面制备了含有钙磷的多孔二氧化钛陶瓷层。研究了施加电压对多孔微弧氧化层的平均孔径、表面粗糙度、相成分、钙磷含量以及Ca/P原子比的影响。结果表明,随着微弧氧化电压的升高,平均孔径、表面粗糙度、膜层中钙磷含量以及Ca/P原子比都逐渐增大,膜层的相成分由锐钛矿逐渐向金红石转变,并且膜层中逐渐有羟基磷灰石生成。To improve the bioactivity of titanium, porous Ti02 ceramic coatings containing Ca and P were prepared on the titanium surface by micro-arc oxidation（MAO）. The effects of the applied voltage on the average pore diameter, surface roughness, phase composition, Ca and P contents as well as Ca/P atom ratio were studied. The re- sults show that the average pore diameter, surface roughness, Ca and P contents as well as Ca/P atom ratio increase with the increase of the applied voltage. Some anatase transforms to rutile and hydroxyapatite forms gradually.

关 键 词：钛 表面 微弧氧化 陶瓷层 生物活性 

分 类 号：TG146[一般工业技术—材料科学与工程]