高等学校化学学报

高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (6): 1071.

• 研究论文 • 上一篇    下一篇

新表面化学处理用于Ti6Al4V合金表面仿生磷酸钙涂层的制备

王秀红1, 段可1, 冯波1, 翁杰1, Wang Ri-Zhi2   

  1. 1. 西南交通大学材料科学与工程学院, 教育部先进材料技术重点实验室, 成都 610031;
    2. 加拿大不列颠哥伦比亚大学材料工程系, 温哥华 V6T 1Z4
  • 收稿日期:2008-12-02 出版日期:2009-06-10 发布日期:2009-06-10
  • 通讯作者: 段可, 男, 博士, 副教授, 主要从事生物材料和表面工程研究, E-mail: keduan2@gmail.com; 翁杰, 男, 博士, 教授, 主要从事生物材料和组织工程研究, E-mail: jweng@home.swjtu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 30870630)和西南交通大学引进留学人才科研启动基金资助.

New Chemical Surface Treatment for the Preparation of Biomimetic Calcium Phosphate Coatings on Ti6Al4V

WANG Xiu-Hong1, DUAN Ke1*, FENG Bo1, WENG Jie1*, WANG Ri-Zhi2   

  1. 1. Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China;
    2. Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
  • Received:2008-12-02 Online:2009-06-10 Published:2009-06-10
  • Contact: DUAN Ke, E-mail: keduan2@gmail.com; WENG Jie, E-mail: jweng@home.swjtu.edu
  • Supported by:

    国家自然科学基金(批准号: 30870630)和西南交通大学引进留学人才科研启动基金资助.

PDF (PC)

被引次数

15

摘要：

报道了一种新的非腐蚀性表面化学处理用于Ti6Al4V合金表面仿生磷酸钙涂层的制备. 将Ti6Al4V合金从浸入的过饱和磷酸钙溶液中拉出, 在空气中挥干表面附着的过饱和润湿膜, 在Ti6Al4V表面生成磷酸钙晶体, 且其表面覆盖率随处理次数增加而增加, 直至表面完全被覆盖. 再将磷酸钙晶体覆盖的Ti6Al4V浸入过饱和溶液后, 表面的磷酸钙晶体迅速生长成为均匀的磷酸钙涂层. 该表面化学处理的机理可能为一个挥发表面结晶过程, 其优点在于润湿膜干燥为表面成核提供驱动力, 因此无需采用表面腐蚀性处理或不稳定的高过饱和溶液处理.

关键词: Ti6Al4V合金, 表面, 涂层, 磷酸钙, 仿生

Abstract:

A new non-corrosive surface treatment to prepare biomimetic calcium phosphate coatings on Ti6Al4V was reported. Ti6Al4V samples were repeatedly dipped into a supersaturated solution, withdrawn, and left to dry in air. Calcium phosphate crystallites formed by this dip-dry treatment and their coverage increased stepwise to complete after 10 times of the treatment. The crystallite-covered samples were immersed in the supersaturated solution, and the crystallites grew to uniform calcium phosphate coatings. The mechanism of the treatment was suggested to be an evaporation-driven surface crystallization process. In this method, the calcium phosphate nucleation occurred in a thin wetting film and the drying of the film provided high supersa-turation, therefore it avoids the use of corrosive treatment and high supersaturations.

Key words: Ti6Al4V alloy, Calcium phosphate, Surface, Coating, Biomimetic

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