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

Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (6): 1071.

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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. 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.

Abstract

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 Ti6Al4V samples were repeatedly dipped into a supersaturated solution, withdrawn, and left to dry in air.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

CLC Number:

O611

TrendMD:

WANG Xiu-Hong, DUAN Ke*, FENG Bo, WENG Jie*, WANG Ri-Zhi. New Chemical Surface Treatment for the Preparation of Biomimetic Calcium Phosphate Coatings on Ti6Al4V[J]. Chem. J. Chinese Universities, 2009, 30(6): 1071.

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

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