Electrophoretic deposition of hydroxyapatite coatings on titanium from dimethylformamide suspensions

被引：60

作者：

Abdeltawab, A. A. ^{[2
]}

Shoeib, M. A. ^{[3
]}

Mohamed, S. G. ^{[1
]}

机构：

[1] TIMS, Dept Chem Engn, Cairo 11421, Egypt

[2] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia

[3] CMRDI, Dept Surface Technol & Corros Protect, Cairo, Egypt

来源：

SURFACE & COATINGS TECHNOLOGY | 2011年 / 206卷 / 01期

关键词：

Hydroxyapatite; Coatings: dimethylformamide; Electrophoretic deposition; Titanium; FILMS;

D O I：

10.1016/j.surfcoat.2011.06.034

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

Hydroxyapatite powders were prepared by a chemical precipitation method and electrophoretically deposited on pure Ti surgical substrates. The powders were suspended in dimethylformamide (DMF). The zeta potential, electromobility and the conductivity of the HA suspension was characterized at various pH values to identify the most stable dispersion conditions. The effect of applied voltage and deposition time on deposition rate, deposition thickness and coating morphology were studied. The coating morphology and composition were characterized by scanning electron microscopy (SEM). The crystalline phase of HA before and after electrophoretic deposition was examined using X- ray diffraction (XRD). Transition electron microscope (TEM) indicated that HA consisted of needle-shaped crystallites. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：43 / 50

页数：8

共 35 条

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Bioceramic dip-coating on Ti-6Al-4V and 316L SS implant materials [J].