Electrochemical deposition of calcium phosphate coatings on titanium was performed galvanostatically from the aqueous solution of Ca(NO3)(2) and NH4H2PO4 with the current densities between 5.0 and 10 mA cm(-2), for different deposition times, at room temperature. The coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that dicalcium phosphate dihydrate (DCPD), brushite (CaHPO4 center dot 2H(2)O) coatings were deposited. The influence of applied current density and the deposition time on the phase composition, crystallite domain size and the morphology of brushite coatings were investigated. It was shown that brushite coating of the greatest mass was obtained for the longest deposition time, while the increase in current density over 7 mA cm(-2) does not affect significantly the mass of brushite coatings. The finest crystallites, with the smallest crystallite domain size of 15.6nm, were deposited at the current density of... 9.0 mA cm(-2). Brushite coatings were fully converted to hydroxyapatite in simulated body fluid (SBF) which was confirmed by XRD and SEM. The crystallite domain size of HA coatings is controlled by applied current density for brushite coatings deposition: crystallization of HA at more porous brushite coatings, deposited at higher current density, caused the formation of smaller crystallites of hydroxyapatite.
TY - JOUR
AU - Đošić, Marija
AU - Panić, V.
AU - Stojanović, Jovica
AU - Mitrić, Miodrag
AU - Mišković-Stanković, Vesna
PY - 2012
UR - https://ritnms.itnms.ac.rs/handle/123456789/209
AB - Electrochemical deposition of calcium phosphate coatings on titanium was performed galvanostatically from the aqueous solution of Ca(NO3)(2) and NH4H2PO4 with the current densities between 5.0 and 10 mA cm(-2), for different deposition times, at room temperature. The coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that dicalcium phosphate dihydrate (DCPD), brushite (CaHPO4 center dot 2H(2)O) coatings were deposited. The influence of applied current density and the deposition time on the phase composition, crystallite domain size and the morphology of brushite coatings were investigated. It was shown that brushite coating of the greatest mass was obtained for the longest deposition time, while the increase in current density over 7 mA cm(-2) does not affect significantly the mass of brushite coatings. The finest crystallites, with the smallest crystallite domain size of 15.6nm, were deposited at the current density of 9.0 mA cm(-2). Brushite coatings were fully converted to hydroxyapatite in simulated body fluid (SBF) which was confirmed by XRD and SEM. The crystallite domain size of HA coatings is controlled by applied current density for brushite coatings deposition: crystallization of HA at more porous brushite coatings, deposited at higher current density, caused the formation of smaller crystallites of hydroxyapatite.
PB - Elsevier, Amsterdam
T2 - Colloids and Surfaces A-Physicochemical and Engineering Aspects
T1 - The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium
EP - 43
SP - 36
VL - 400
DO - 10.1016/j.colsurfa.2012.02.040
UR - conv_620
ER -
@article{
author = "Đošić, Marija and Panić, V. and Stojanović, Jovica and Mitrić, Miodrag and Mišković-Stanković, Vesna",
year = "2012",
abstract = "Electrochemical deposition of calcium phosphate coatings on titanium was performed galvanostatically from the aqueous solution of Ca(NO3)(2) and NH4H2PO4 with the current densities between 5.0 and 10 mA cm(-2), for different deposition times, at room temperature. The coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that dicalcium phosphate dihydrate (DCPD), brushite (CaHPO4 center dot 2H(2)O) coatings were deposited. The influence of applied current density and the deposition time on the phase composition, crystallite domain size and the morphology of brushite coatings were investigated. It was shown that brushite coating of the greatest mass was obtained for the longest deposition time, while the increase in current density over 7 mA cm(-2) does not affect significantly the mass of brushite coatings. The finest crystallites, with the smallest crystallite domain size of 15.6nm, were deposited at the current density of 9.0 mA cm(-2). Brushite coatings were fully converted to hydroxyapatite in simulated body fluid (SBF) which was confirmed by XRD and SEM. The crystallite domain size of HA coatings is controlled by applied current density for brushite coatings deposition: crystallization of HA at more porous brushite coatings, deposited at higher current density, caused the formation of smaller crystallites of hydroxyapatite.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces A-Physicochemical and Engineering Aspects",
title = "The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium",
pages = "43-36",
volume = "400",
doi = "10.1016/j.colsurfa.2012.02.040",
url = "conv_620"
}
Đošić, M., Panić, V., Stojanović, J., Mitrić, M.,& Mišković-Stanković, V.. (2012). The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium. in Colloids and Surfaces A-Physicochemical and Engineering Aspects
Elsevier, Amsterdam., 400, 36-43.
https://doi.org/10.1016/j.colsurfa.2012.02.040
conv_620
Đošić M, Panić V, Stojanović J, Mitrić M, Mišković-Stanković V. The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium. in Colloids and Surfaces A-Physicochemical and Engineering Aspects. 2012;400:36-43.
doi:10.1016/j.colsurfa.2012.02.040
conv_620 .
Đošić, Marija, Panić, V., Stojanović, Jovica, Mitrić, Miodrag, Mišković-Stanković, Vesna, "The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium" in Colloids and Surfaces A-Physicochemical and Engineering Aspects, 400 (2012):36-43,
https://doi.org/10.1016/j.colsurfa.2012.02.040 .,
conv_620 .
