郭平义,王宁,秦泽尚,朱建华,周云

• 1:江苏科技大学先进焊接技术省重点实验室

摘要(Abstract)：

钛合金长期植入体内依然存在磨损和腐蚀的问题,因此钛合金表面改性的目的就是提高其表面耐蚀性、耐磨性并赋予生物活性。本文在3种不同的电解液中,采用等离子电解氧化技术在TA1纯钛表面制备含有Ca、P的氧化钛多孔复合陶瓷层。研究了不同电解液中,改变工艺参数对纯钛表面陶瓷层平均厚度和生长机制的影响。采用扫描电镜和能谱分析了电流密度改变时,3种不同电解液中生成复合陶瓷膜的表截面形貌以及成分。结果表明,相同的电流密度,在电解液B中,陶瓷膜初始击穿电位最大,电解液C中陶瓷膜初始击穿电位值最小。正向电流为16 A/dm2时,在电解液A中陶瓷膜表面出现粉末状团聚物,在电解液B和C中,没有粉末状团聚物出现。无论是工艺参数还是电解液成分,对纯钛生物陶瓷膜的生长过程与组织结构都产生很大的影响,适当控制可制备所需的功能陶瓷膜。

关键词(KeyWords)： 纯钛;等离子电解氧化;电解液;生长机制;组织结构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51201073);; 江苏省高校优势学科建设工程项目

作者(Author): 郭平义,王宁,秦泽尚,朱建华,周云

DOI: 10.13289/j.issn.1009-6264.2013.07.035

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