Hydroxyapatite coatings prepared by micro-arc oxidation in Ca- and P-containing electrolyte

被引：77

作者：

Sun, Jifeng ^{[1
]}

Han, Yong ^{[1
]}

Huang, Xin ^{[1
]}

机构：

[1] Xian Jiaotong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 201卷 / 9-11期

基金：

中国国家自然科学基金;

关键词：

hydroxyapatite; micro-arc oxidation; titanium; tensile strength;

D O I：

10.1016/j.surfcoat.2006.07.052

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

A novel method to directly prepare hydroxyapatite (HA) on Ti6Al4V by micro-arc oxidation (MAO) in Ca- and P-containing electrolyte was proposed in this paper. The results revealed that the MAO-formed coatings were composed of a bi-layer structure of HA/TiO2, containing alpha-TCP and CaCO3, and the applied voltage and the treated time were two important factors for HA formation. HA formed in the MAO coatings were probably the continuous decomposing products of Ca-deficient HA. The tensile strength of the coatings was about 44 and 24 MPa when the samples were treated for 15 min at 450 V and 480 V respectively. The fracture surfaces examined with EDX showed that failure occurred within the coatings. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：5655 / 5658

页数：4

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