Electrophoretic deposition; Hydroxyapatite; Alternating current; direct current; Titanium; Biomedical coatings
Abstract :
[en] In this study, electrophoretic deposition (EPD) of hydroxyapatite (HA) powder on titanium plate was performed using butanol as solvent under
direct current (DC) and alternating current (AC) fields. The zeta potential of the suspensions was measured to define their stability and the charge
on the particles. Coating thickness was varied by adjusting the voltage and time of deposition. Surface morphology and cross section thickness
were studied using scanning electron microscopy and image analysis software. Surface crack density was calculated from the micrographs. The
results showed that the samples of similar thickness have higher grain density when coated using AC as compared to DC EPD. This facile but
novel test proves the capability of AC-EPD to attain denser and uniform HA coatings from non-aqueous medium.
Disciplines :
Materials science & engineering
Author, co-author :
Ozhukil Kollath, Vinayaraj ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Chen, Qiang; Friedrich-Alexander-Universität Erlangen-Nürnberg - FAU > Institute of Biomaterials, Department of Materials Science and Engineering
Closset, Raphaël ; Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Luyten, Jan; Katholieke Universiteit Leuven - KUL > MTM
Traina, Karl ; Université de Liège - ULiège > Départment de chimie
Boccaccini, Aldo R.; Friedrich-Alexander-Universität Erlangen-Nürnberg - FAU > Department of Materials Science and Engineering > Institute of Biomaterials
Cloots, Rudi ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Language :
English
Title :
AC vs. DC electrophoretic deposition of hydroxyapatite on titanium
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