The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium
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2012
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Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
Brushite / Hydroxyapatite / Biomaterials / Nanostructures / Electrochemical depositionIzvor:
Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2012, 400, 36-43Izdavač:
- Elsevier
Finansiranje / projekti:
DOI: 10.1016/j.colsurfa.2012.02.040
ISSN: 0927-7757
WoS: 000303906900005
Scopus: 2-s2.0-84859508092
Institucija/grupa
IHTMTY - JOUR AU - Djosic, M. S. AU - Panić, Vladimir AU - Stojanovic, J. AU - Mitrić, Miodrag AU - Mišković-Stanković, Vesna PY - 2012 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/950 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 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 VL - 400 SP - 36 EP - 43 DO - 10.1016/j.colsurfa.2012.02.040 ER -
@article{ author = "Djosic, M. S. and Panić, Vladimir and Stojanovic, J. 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", 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", volume = "400", pages = "36-43", doi = "10.1016/j.colsurfa.2012.02.040" }
Djosic, M. S., Panić, V., Stojanovic, 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., 400, 36-43. https://doi.org/10.1016/j.colsurfa.2012.02.040
Djosic MS, Panić V, Stojanovic 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 .
Djosic, M. S., Panić, Vladimir, Stojanovic, J., 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 . .