Thick hydroxyapatite coatings by electrophoretic deposition

被引：132
|
作者：
Wang, C [1 ]
Ma, J [1 ]
Cheng, W [1 ]
Zhang, RF [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Engn, Singapore 639798, Singapore
来源：
MATERIALS LETTERS | 2002年 / 57卷 / 01期
关键词：
electrophoretic deposition; hydroxyapatite; repeated deposition; coating;
D O I：
10.1016/S0167-577X(02)00706-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Submicron hydroxyapatite (HA) powders prepared by thermal plasma spray method were electrophoretically deposited on carbon rod by repeated depositions at room temperature. The thickness of green coating was adjusted by deposition time and the number of depositions. After sintering, a uniform HA ceramic tube was obtained. A range of sintering temperature from 1150 to 1300 degreesC was studied. From the Fourier transform-infrared (FT-IR) spectra and SEM results, the sintering temperatare has shown an obvious influence on the microstructure and densification, hence the strength of the sintered coatings. No HA decomposition was observed up to 1300 degreesC of sintering by X-ray diffraction (XRD) analysis. The influence of processing factors such as electrophoretic mobility of particles, suspension concentration, applied electric field and deposition time on coating behavior was also discussed. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码：99 / 105
页数：7
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