The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium
Само за регистроване кориснике
2012
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
Brushite / Hydroxyapatite / Biomaterials / Nanostructures / Electrochemical depositionИзвор:
Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2012, 400, 36-43Издавач:
- Elsevier, Amsterdam
Финансирање / пројекти:
- Синтеза, развој технологија добијања и примена наноструктурних мултифункционалних материјала дефинисаних својстава (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
DOI: 10.1016/j.colsurfa.2012.02.040
ISSN: 0927-7757
WoS: 000303906900005
Scopus: 2-s2.0-84859508092
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Đošić, Marija AU - Panić, V. AU - Stojanović, Jovica AU - Mitrić, Miodrag AU - Mišković-Stanković, Vesna PY - 2012 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2246 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 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" }
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
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 .
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 . .