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One-step approach for the fabrication and characterization of hydroxyapatite/TiO2 composite ceramic coatings by micro-arc oxidation in situ on the surface of pure titanium

  • Wuchao Shi
  • , Limin Dong*
  • , Qiang Li
  • , Chen Wang
  • , Tongxiang Liang
  • , Jiemo Tian
  • *此作品的通讯作者
  • East China Normal University
  • Tsinghua University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The hydroxyapatite (HA)/TiO2 composite ceramic coatings were formed by micro-arc oxidation (MAO) on pure titanium in mixed electrolyte of calcium glycerophosphate and calcium acetate with DC pulse power. Microstructure, phase composition, porosity and thickness of the coatings were examined using SEM, XRD, Image-Pro Plus 6.0 Image analysis system and Eddy current thickness gauge. Results indicate that MAO coatings containing calcium and phosphorus were formed in situ on pure titanium surface. Pores formed by the discharge channels distribute uniformly on the coatings surface, and the inner layer is dense. The principal crystalline phases of the MAO coatings are anatase TiO2, rutile TiO2, HA, Ca3(PO 4)2 and matrix Ti. The interface is metallurgical bonding and the bonding strength is strong. And reaction time makes a greater influence than voltage in thickness and voltage makes a greater influence than time in porosity.

源语言英语
主期刊名High-Performance Ceramics VIII
出版商Trans Tech Publications Ltd
598-601
页数4
ISBN(印刷版)9783038350415
DOI
出版状态已出版 - 2014
活动8th International Conference on High-Performance Ceramics, CICC 2013 - Chongqing, 中国
期限: 4 11月 20137 11月 2013

出版系列

姓名Key Engineering Materials
602-603
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

会议

会议8th International Conference on High-Performance Ceramics, CICC 2013
国家/地区中国
Chongqing
时期4/11/137/11/13

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