电解液成分对纯钛表面微弧氧化膜结构与生物活性的影响Effects of electrolyte composition and bioactivity on the structural characteristics of microarc oxidation coating on pure titanium surface
朱瑞富,王志刚,王宏元,肖桂勇,吕宇鹏,塙隆夫,小林郁夫
摘要(Abstract):
采用微弧氧化处理技术,在纯钛TA2表面制备了含钙磷的多孔复合氧化膜,用SEM、XRD、EPMA等分析了电解液成分对氧化膜形貌、成分、相构成及生物活性的影响。结果表明:纯钛表面微弧氧化后原位生成的含钙磷多孔性复合氧化膜由锐钛矿相TiO2,金红石相TiO2和基体Ti组成;随电解液中钙磷摩尔比(Ca/P)值的增大,表面孔洞数量增多、直径变小,膜中Ca/P值增大,锐钛矿相TiO2减少、金红石相TiO2增多;当电解液中Ca/P=5时得到的氧化膜的Ca/P值为1.528,将该样品经碱液处理后再在快速钙化溶液(FCS)中浸泡2 d后即有羟基磷灰石HA形成,表明其具有良好的生物活性。
关键词(KeyWords): 电解液成分;纯钛;微弧氧化膜;结构;生物活性
基金项目(Foundation): 山东省自然科学基金项目(ZR2009FM019)
作者(Author): 朱瑞富,王志刚,王宏元,肖桂勇,吕宇鹏,塙隆夫,小林郁夫
DOI: 10.13289/j.issn.1009-6264.2012.04.003
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