TY  - JOUR
AU  - Živković, Ljiljana
AU  - Jegdić, Bore V.
AU  - Andrić, Velibor
AU  - Rhee, Kyong Yop
AU  - Bajat, Jelena B.
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8422
AB  - In this work an attempt was made to produce epoxy coating doped with ceria (CeO2) and/or zirconia (ZrO2) nanoparticles, in single step electrophoretric deposition process. Deposition was carried out on AA6060 cataforetically from epoxy resin suspension containing synthesized stable aqueous colloidal dispersions (sols) of CeO2 and ZrO2. The influence of ceria and zirconia nanoparticles on the physicochemical characteristics of epoxy coatings was evaluated by energy dispersive X-ray fluorescence spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis and adhesion measurements, while their corrosion stability during immersion in 0.5 M NaCl solution was monitored by electrochemical impedance spectroscopy. All ceria and/or zirconia containing coatings showed better corrosion stability and adhesion than pure epoxy coating, while between doped epoxy coatings one with CeO2/ZrO2 exhhibited the greatest values of charge-transfer resistance due to synergetic effect of both types of added nanoparticles. © 2019 Elsevier B.V.
T2  - Progress in Organic Coatings
T1  - The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy
VL  - 136
SP  - 105219
DO  - 10.1016/j.porgcoat.2019.105219
ER  - 

@article{
author = "Živković, Ljiljana and Jegdić, Bore V. and Andrić, Velibor and Rhee, Kyong Yop and Bajat, Jelena B. and Mišković-Stanković, Vesna",
year = "2019",
abstract = "In this work an attempt was made to produce epoxy coating doped with ceria (CeO2) and/or zirconia (ZrO2) nanoparticles, in single step electrophoretric deposition process. Deposition was carried out on AA6060 cataforetically from epoxy resin suspension containing synthesized stable aqueous colloidal dispersions (sols) of CeO2 and ZrO2. The influence of ceria and zirconia nanoparticles on the physicochemical characteristics of epoxy coatings was evaluated by energy dispersive X-ray fluorescence spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis and adhesion measurements, while their corrosion stability during immersion in 0.5 M NaCl solution was monitored by electrochemical impedance spectroscopy. All ceria and/or zirconia containing coatings showed better corrosion stability and adhesion than pure epoxy coating, while between doped epoxy coatings one with CeO2/ZrO2 exhhibited the greatest values of charge-transfer resistance due to synergetic effect of both types of added nanoparticles. © 2019 Elsevier B.V.",
journal = "Progress in Organic Coatings",
title = "The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy",
volume = "136",
pages = "105219",
doi = "10.1016/j.porgcoat.2019.105219"
}

Živković, L., Jegdić, B. V., Andrić, V., Rhee, K. Y., Bajat, J. B.,& Mišković-Stanković, V.. (2019). The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy. in Progress in Organic Coatings, 136, 105219.
https://doi.org/10.1016/j.porgcoat.2019.105219

Živković L, Jegdić BV, Andrić V, Rhee KY, Bajat JB, Mišković-Stanković V. The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy. in Progress in Organic Coatings. 2019;136:105219.
doi:10.1016/j.porgcoat.2019.105219 .

Živković, Ljiljana, Jegdić, Bore V., Andrić, Velibor, Rhee, Kyong Yop, Bajat, Jelena B., Mišković-Stanković, Vesna, "The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy" in Progress in Organic Coatings, 136 (2019):105219,
https://doi.org/10.1016/j.porgcoat.2019.105219 . .

TY  - JOUR
AU  - Jegdić, Bore V.
AU  - Živković, Ljiljana
AU  - Popić, Jovan P.
AU  - Rogan, Jelena R.
AU  - Bajat, Jelena B.
AU  - Mišković-Stanković, Vesna B.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1294
AB  - In this study, corrosion protection efficiency of undoped epoxy and epoxy coating doped with cerium on aluminum alloy AA6060 is evaluated over prolonged exposure to 3wt% NaCl solution by electrochemical impedance spectroscopy (EIS). Different amounts of Ce(NO3)(3) are added into the epoxy suspension used for the cataphoretic deposition. Suspension stability is characterized by zeta potential and particle size values. Water content and thermal stability of the coatings were determined by thermogravimetric analysis. Insufficient corrosion stability, very close to that of undoped epoxy, is revealed for the coating with 1mM Ce. Higher cerium doping contributes to a significant increase in corrosion stability (2-3 orders of magnitude greater charge-transfer resistance). Epoxy coating doped with 5mM Ce displays a pronounced self-healing ability and the best corrosion protection and adhesion, owing to evenly distributed cerium precipitates on the aluminum surface. In the case of 10mM Ce-doped coating, the formation of Ce clusters and higher porosity causes a certain lowering of the protective ability. EIS measurements on epoxy coating with artificial defect confirm these findings.
T2  - Materials and Corrosion (Werkstoffe und Korrosion)
T1  - Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy
VL  - 67
IS  - 11
SP  - 1173
EP  - 1184
DO  - 10.1002/maco.201608827
ER  - 

@article{
author = "Jegdić, Bore V. and Živković, Ljiljana and Popić, Jovan P. and Rogan, Jelena R. and Bajat, Jelena B. and Mišković-Stanković, Vesna B.",
year = "2016",
abstract = "In this study, corrosion protection efficiency of undoped epoxy and epoxy coating doped with cerium on aluminum alloy AA6060 is evaluated over prolonged exposure to 3wt% NaCl solution by electrochemical impedance spectroscopy (EIS). Different amounts of Ce(NO3)(3) are added into the epoxy suspension used for the cataphoretic deposition. Suspension stability is characterized by zeta potential and particle size values. Water content and thermal stability of the coatings were determined by thermogravimetric analysis. Insufficient corrosion stability, very close to that of undoped epoxy, is revealed for the coating with 1mM Ce. Higher cerium doping contributes to a significant increase in corrosion stability (2-3 orders of magnitude greater charge-transfer resistance). Epoxy coating doped with 5mM Ce displays a pronounced self-healing ability and the best corrosion protection and adhesion, owing to evenly distributed cerium precipitates on the aluminum surface. In the case of 10mM Ce-doped coating, the formation of Ce clusters and higher porosity causes a certain lowering of the protective ability. EIS measurements on epoxy coating with artificial defect confirm these findings.",
journal = "Materials and Corrosion (Werkstoffe und Korrosion)",
title = "Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy",
volume = "67",
number = "11",
pages = "1173-1184",
doi = "10.1002/maco.201608827"
}

Jegdić, B. V., Živković, L., Popić, J. P., Rogan, J. R., Bajat, J. B.,& Mišković-Stanković, V. B.. (2016). Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy. in Materials and Corrosion (Werkstoffe und Korrosion), 67(11), 1173-1184.
https://doi.org/10.1002/maco.201608827

Jegdić BV, Živković L, Popić JP, Rogan JR, Bajat JB, Mišković-Stanković VB. Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy. in Materials and Corrosion (Werkstoffe und Korrosion). 2016;67(11):1173-1184.
doi:10.1002/maco.201608827 .

Jegdić, Bore V., Živković, Ljiljana, Popić, Jovan P., Rogan, Jelena R., Bajat, Jelena B., Mišković-Stanković, Vesna B., "Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy" in Materials and Corrosion (Werkstoffe und Korrosion), 67, no. 11 (2016):1173-1184,
https://doi.org/10.1002/maco.201608827 . .

TY  - JOUR
AU  - Bobić, Biljana M.
AU  - Bajat, Jelena B.
AU  - Bobić, Ilija
AU  - Jegdić, Bore V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1174
AB  - The influence of corrosion on the surface appearance and microstructure of particulate ZA27/SiCp composites was examined after 30 d immersion in a sodium chloride solution with the access of atmospheric oxygen. The composites with different contents of SiC micro-particles were synthesized via compo casting. Microstructural studies by means of optical microscopy (OM) and scanning electron microscopy (SEM) showed that corrosion occurred in the composite matrices, preferentially in regions of the. phase, rich in zinc. The corrosion processes did not affect the silicon carbide particles incorporated in the matrix alloy. According to the results of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites.
T2  - Transactions of Nonferrous Metals Society of China
T1  - Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution
VL  - 26
IS  - 6
SP  - 1512
EP  - 1521
DO  - 10.1016/S1003-6326(16)64257-7
ER  - 

@article{
author = "Bobić, Biljana M. and Bajat, Jelena B. and Bobić, Ilija and Jegdić, Bore V.",
year = "2016",
abstract = "The influence of corrosion on the surface appearance and microstructure of particulate ZA27/SiCp composites was examined after 30 d immersion in a sodium chloride solution with the access of atmospheric oxygen. The composites with different contents of SiC micro-particles were synthesized via compo casting. Microstructural studies by means of optical microscopy (OM) and scanning electron microscopy (SEM) showed that corrosion occurred in the composite matrices, preferentially in regions of the. phase, rich in zinc. The corrosion processes did not affect the silicon carbide particles incorporated in the matrix alloy. According to the results of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites.",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution",
volume = "26",
number = "6",
pages = "1512-1521",
doi = "10.1016/S1003-6326(16)64257-7"
}

Bobić, B. M., Bajat, J. B., Bobić, I.,& Jegdić, B. V.. (2016). Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution. in Transactions of Nonferrous Metals Society of China, 26(6), 1512-1521.
https://doi.org/10.1016/S1003-6326(16)64257-7

Bobić BM, Bajat JB, Bobić I, Jegdić BV. Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution. in Transactions of Nonferrous Metals Society of China. 2016;26(6):1512-1521.
doi:10.1016/S1003-6326(16)64257-7 .

Bobić, Biljana M., Bajat, Jelena B., Bobić, Ilija, Jegdić, Bore V., "Corrosion influence on surface appearance and microstructure of compo cast ZA27/SiCp composites in sodium chloride solution" in Transactions of Nonferrous Metals Society of China, 26, no. 6 (2016):1512-1521,
https://doi.org/10.1016/S1003-6326(16)64257-7 . .

TY  - JOUR
AU  - Živković, Ljiljana
AU  - Bajat, Jelena B.
AU  - Popić, Jovan P.
AU  - Jegdić, Bore V.
AU  - Stevanović, Sanja
AU  - Mišković-Stanković, Vesna B.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/384
AB  - Ce-based conversion coatings (CeCCs) are a promising alternative to toxic chromate coatings on the metal substrates. In this work the CeCCs were electrodeposited on aluminium alloy AA6060 from aqueous solution of Ce(NO3)(3) at different potentials (-0.95 V, -1.2 V and -1.4V). Effect of deposition potential and post-treatment in the phosphate solution on morphology and protective properties of CeCCs with top cataphoretic epoxy coating was studied. To assess the differences between the protective systems, originating from the different CeCCs pre-treatments, electrochemical impedance spectroscopy (EIS), polarization measurements, AFM and SEM/EDS analysis were used. The EIS study was undertaken to follow the evolution of corrosion behaviour of epoxy coating/CeCCs protective systems over prolonged time of exposure to the chloride environment (3 wt.% NaCl). Results suggest significantly improved corrosion stability of epoxy coating on AA6060 with as-deposited CeCCs sub-layers with respect to the same epoxy coatings with phosphate post-treated CeCCs. The far best protective properties, i.e., the greatest value of pore resistance and the lowest value of corrosion current density were provided by the epoxy coating/CeCC protective system with CeCC deposited at -1.2V and without post-treatment. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Progress in Organic Coatings
T1  - Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment
VL  - 79
SP  - 43
EP  - 52
DO  - 10.1016/j.porgcoat.2014.10.014
ER  - 

@article{
author = "Živković, Ljiljana and Bajat, Jelena B. and Popić, Jovan P. and Jegdić, Bore V. and Stevanović, Sanja and Mišković-Stanković, Vesna B.",
year = "2015",
abstract = "Ce-based conversion coatings (CeCCs) are a promising alternative to toxic chromate coatings on the metal substrates. In this work the CeCCs were electrodeposited on aluminium alloy AA6060 from aqueous solution of Ce(NO3)(3) at different potentials (-0.95 V, -1.2 V and -1.4V). Effect of deposition potential and post-treatment in the phosphate solution on morphology and protective properties of CeCCs with top cataphoretic epoxy coating was studied. To assess the differences between the protective systems, originating from the different CeCCs pre-treatments, electrochemical impedance spectroscopy (EIS), polarization measurements, AFM and SEM/EDS analysis were used. The EIS study was undertaken to follow the evolution of corrosion behaviour of epoxy coating/CeCCs protective systems over prolonged time of exposure to the chloride environment (3 wt.% NaCl). Results suggest significantly improved corrosion stability of epoxy coating on AA6060 with as-deposited CeCCs sub-layers with respect to the same epoxy coatings with phosphate post-treated CeCCs. The far best protective properties, i.e., the greatest value of pore resistance and the lowest value of corrosion current density were provided by the epoxy coating/CeCC protective system with CeCC deposited at -1.2V and without post-treatment. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment",
volume = "79",
pages = "43-52",
doi = "10.1016/j.porgcoat.2014.10.014"
}

Živković, L., Bajat, J. B., Popić, J. P., Jegdić, B. V., Stevanović, S.,& Mišković-Stanković, V. B.. (2015). Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment. in Progress in Organic Coatings, 79, 43-52.
https://doi.org/10.1016/j.porgcoat.2014.10.014

Živković L, Bajat JB, Popić JP, Jegdić BV, Stevanović S, Mišković-Stanković VB. Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment. in Progress in Organic Coatings. 2015;79:43-52.
doi:10.1016/j.porgcoat.2014.10.014 .

Živković, Ljiljana, Bajat, Jelena B., Popić, Jovan P., Jegdić, Bore V., Stevanović, Sanja, Mišković-Stanković, Vesna B., "Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment" in Progress in Organic Coatings, 79 (2015):43-52,
https://doi.org/10.1016/j.porgcoat.2014.10.014 . .

TY  - JOUR
AU  - Živković, Ljiljana
AU  - Popić, Jovan P.
AU  - Jegdić, Bore V.
AU  - Dohcevic-Mitrovic, Z.
AU  - Bajat, Jelena B.
AU  - Miskovic-Stankovic, V. B.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5902
AB  - Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times ( GT = 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Surface and Coatings Technology
T1  - Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential
VL  - 240
SP  - 327
EP  - 335
DO  - 10.1016/j.surfcoat.2013.12.048
ER  - 

@article{
author = "Živković, Ljiljana and Popić, Jovan P. and Jegdić, Bore V. and Dohcevic-Mitrovic, Z. and Bajat, Jelena B. and Miskovic-Stankovic, V. B.",
year = "2014",
abstract = "Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times ( GT = 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Surface and Coatings Technology",
title = "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential",
volume = "240",
pages = "327-335",
doi = "10.1016/j.surfcoat.2013.12.048"
}

Živković, L., Popić, J. P., Jegdić, B. V., Dohcevic-Mitrovic, Z., Bajat, J. B.,& Miskovic-Stankovic, V. B.. (2014). Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology, 240, 327-335.
https://doi.org/10.1016/j.surfcoat.2013.12.048

Živković L, Popić JP, Jegdić BV, Dohcevic-Mitrovic Z, Bajat JB, Miskovic-Stankovic VB. Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology. 2014;240:327-335.
doi:10.1016/j.surfcoat.2013.12.048 .

Živković, Ljiljana, Popić, Jovan P., Jegdić, Bore V., Dohcevic-Mitrovic, Z., Bajat, Jelena B., Miskovic-Stankovic, V. B., "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential" in Surface and Coatings Technology, 240 (2014):327-335,
https://doi.org/10.1016/j.surfcoat.2013.12.048 . .

TY  - JOUR
AU  - Popić, Jovan P.
AU  - Jegdić, Bore V.
AU  - Bajat, Jelena B.
AU  - Mitrić, Miodrag
AU  - Mišković-Stanković, Vesna B.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5296
AB  - In this study, the effect of deposition time and concentration of NaNO2 in the phosphate bath on the surface morphology of iron-phosphate coatings on low carbon steel was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of iron-phosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), while surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique in the borate solution. The addition of NaNO2 to the phosphate bath significantly increased the surface coverage since better packed crystals of smaller size, which favour the phosphate nucleation, were obtained. It was also shown that prolonged deposition time increased the surface coverage, coating roughness and crystal size in the lateral direction, altering also the crystal shape from large platelets non-uniformly distributed on the steel surface during the initial time to better-packed laminated and needle-like structures during prolonged exposure.
T2  - Journal of the Serbian Chemical Society
T1  - Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique
VL  - 78
IS  - 1
SP  - 101
EP  - 114
DO  - 10.2298/JSC120706096P
ER  - 

@article{
author = "Popić, Jovan P. and Jegdić, Bore V. and Bajat, Jelena B. and Mitrić, Miodrag and Mišković-Stanković, Vesna B.",
year = "2013",
abstract = "In this study, the effect of deposition time and concentration of NaNO2 in the phosphate bath on the surface morphology of iron-phosphate coatings on low carbon steel was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of iron-phosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), while surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique in the borate solution. The addition of NaNO2 to the phosphate bath significantly increased the surface coverage since better packed crystals of smaller size, which favour the phosphate nucleation, were obtained. It was also shown that prolonged deposition time increased the surface coverage, coating roughness and crystal size in the lateral direction, altering also the crystal shape from large platelets non-uniformly distributed on the steel surface during the initial time to better-packed laminated and needle-like structures during prolonged exposure.",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique",
volume = "78",
number = "1",
pages = "101-114",
doi = "10.2298/JSC120706096P"
}

Popić, J. P., Jegdić, B. V., Bajat, J. B., Mitrić, M.,& Mišković-Stanković, V. B.. (2013). Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique. in Journal of the Serbian Chemical Society, 78(1), 101-114.
https://doi.org/10.2298/JSC120706096P

Popić JP, Jegdić BV, Bajat JB, Mitrić M, Mišković-Stanković VB. Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique. in Journal of the Serbian Chemical Society. 2013;78(1):101-114.
doi:10.2298/JSC120706096P .

Popić, Jovan P., Jegdić, Bore V., Bajat, Jelena B., Mitrić, Miodrag, Mišković-Stanković, Vesna B., "Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique" in Journal of the Serbian Chemical Society, 78, no. 1 (2013):101-114,
https://doi.org/10.2298/JSC120706096P . .

TY  - JOUR
AU  - Jegdić, Bore V.
AU  - Živković, Ljiljana
AU  - Popić, Jovan P.
AU  - Bajat, Jelena B.
AU  - Mišković-Stanković, Vesna B.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5616
AB  - Dip-immersion is a simple and cost-effective method for the preparation of Ce-based conversion coatings (CeCCs), a promising alternative to toxic chromate coatings, on metal substrates. In this work, CeCCs were prepared on Al-alloy AA6060 from an aqueous solution of cerium chloride at room temperature. The effect of immersion time and post-treatment in phosphate solution on the microstructure and corrosion properties of the coatings was studied. The longer the immersion time was, the thicker but more non-homogeneous and cracked were the CeCCs. The post-treatment contributed to a sealing of the cracks, as proven by an increase in the corrosion resistance compared with the as-deposited coatings. The CeCCs prepared at longer deposition times and post-treated showed much better corrosion protection than those prepared at shorter deposition, times. A detailed electrochemical impedance spectroscopy (EIS) study was undertaken to follow the evolution of the corrosion behaviour of the CeCCs with time of exposure to an aggressive chloride environment (3.5 % NaCl). For the sake of comparison, the EIS properties of bare AA6060 were also investigated. Linear voltammetry was performed to complete the study. The results confirmed the formation of protective CeCCs on the surface of AA6060. However, even CeCCs prepared at longer deposition times and post-treated provided short term protection in the aggressive environment, due to the small thickness of the coating.
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method
VL  - 78
IS  - 7
SP  - 997
EP  - 1011
DO  - 10.2298/JSC121212009J
ER  - 

@article{
author = "Jegdić, Bore V. and Živković, Ljiljana and Popić, Jovan P. and Bajat, Jelena B. and Mišković-Stanković, Vesna B.",
year = "2013",
abstract = "Dip-immersion is a simple and cost-effective method for the preparation of Ce-based conversion coatings (CeCCs), a promising alternative to toxic chromate coatings, on metal substrates. In this work, CeCCs were prepared on Al-alloy AA6060 from an aqueous solution of cerium chloride at room temperature. The effect of immersion time and post-treatment in phosphate solution on the microstructure and corrosion properties of the coatings was studied. The longer the immersion time was, the thicker but more non-homogeneous and cracked were the CeCCs. The post-treatment contributed to a sealing of the cracks, as proven by an increase in the corrosion resistance compared with the as-deposited coatings. The CeCCs prepared at longer deposition times and post-treated showed much better corrosion protection than those prepared at shorter deposition, times. A detailed electrochemical impedance spectroscopy (EIS) study was undertaken to follow the evolution of the corrosion behaviour of the CeCCs with time of exposure to an aggressive chloride environment (3.5 % NaCl). For the sake of comparison, the EIS properties of bare AA6060 were also investigated. Linear voltammetry was performed to complete the study. The results confirmed the formation of protective CeCCs on the surface of AA6060. However, even CeCCs prepared at longer deposition times and post-treated provided short term protection in the aggressive environment, due to the small thickness of the coating.",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method",
volume = "78",
number = "7",
pages = "997-1011",
doi = "10.2298/JSC121212009J"
}

Jegdić, B. V., Živković, L., Popić, J. P., Bajat, J. B.,& Mišković-Stanković, V. B.. (2013). Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method. in Journal of the Serbian Chemical Society, 78(7), 997-1011.
https://doi.org/10.2298/JSC121212009J

Jegdić BV, Živković L, Popić JP, Bajat JB, Mišković-Stanković VB. Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method. in Journal of the Serbian Chemical Society. 2013;78(7):997-1011.
doi:10.2298/JSC121212009J .

Jegdić, Bore V., Živković, Ljiljana, Popić, Jovan P., Bajat, Jelena B., Mišković-Stanković, Vesna B., "Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method" in Journal of the Serbian Chemical Society, 78, no. 7 (2013):997-1011,
https://doi.org/10.2298/JSC121212009J . .

TY  - JOUR
AU  - Živković, Ljiljana
AU  - Jegdić, Bore V.
AU  - Popić, Jovan P.
AU  - Bajat, Jelena B.
AU  - Mišković-Stanković, Vesna B.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5641
AB  - Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Progress in Organic Coatings
T1  - The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060
VL  - 76
IS  - 10
SP  - 1387
EP  - 1395
DO  - 10.1016/j.porgcoat.2013.04.017
ER  - 

@article{
author = "Živković, Ljiljana and Jegdić, Bore V. and Popić, Jovan P. and Bajat, Jelena B. and Mišković-Stanković, Vesna B.",
year = "2013",
abstract = "Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060",
volume = "76",
number = "10",
pages = "1387-1395",
doi = "10.1016/j.porgcoat.2013.04.017"
}

Živković, L., Jegdić, B. V., Popić, J. P., Bajat, J. B.,& Mišković-Stanković, V. B.. (2013). The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings, 76(10), 1387-1395.
https://doi.org/10.1016/j.porgcoat.2013.04.017

Živković L, Jegdić BV, Popić JP, Bajat JB, Mišković-Stanković VB. The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings. 2013;76(10):1387-1395.
doi:10.1016/j.porgcoat.2013.04.017 .

Živković, Ljiljana, Jegdić, Bore V., Popić, Jovan P., Bajat, Jelena B., Mišković-Stanković, Vesna B., "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060" in Progress in Organic Coatings, 76, no. 10 (2013):1387-1395,
https://doi.org/10.1016/j.porgcoat.2013.04.017 . .

TY  - JOUR
AU  - Bobić, Biljana M.
AU  - Bajat, Jelena B.
AU  - Aćimović-Pavlović, Zagorka
AU  - Bobić, Ilija
AU  - Jegdić, Bore V.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5663
AB  - The influence of corrosion on the microstructure of thixoformed and heat-treated ZA27 alloys was investigated. The microstructure of ZA27 alloy was affected by heat treatment. The process of electrochemical corrosion occurs in both ZA27 alloys through the area of eta phase. According to the results of immersion test and electrochemical measurements, the corrosion rate of the thixoformed ZA27 alloy is at least 50% lower than that of the thixoformed and thermally processed alloy. This indicates the unfavourable influence of applied heat treatment (T4 regime) on the corrosion resistance of the thixoformed ZA27 alloy.
T2  - Transactions of Nonferrous Metals Society of China
T1  - Corrosion behaviour of thixoformed and heat-treated ZA27 alloys in NaCl solution
VL  - 23
IS  - 4
SP  - 931
EP  - 941
DO  - 10.1016/S1003-6326(13)62550-9
ER  - 

@article{
author = "Bobić, Biljana M. and Bajat, Jelena B. and Aćimović-Pavlović, Zagorka and Bobić, Ilija and Jegdić, Bore V.",
year = "2013",
abstract = "The influence of corrosion on the microstructure of thixoformed and heat-treated ZA27 alloys was investigated. The microstructure of ZA27 alloy was affected by heat treatment. The process of electrochemical corrosion occurs in both ZA27 alloys through the area of eta phase. According to the results of immersion test and electrochemical measurements, the corrosion rate of the thixoformed ZA27 alloy is at least 50% lower than that of the thixoformed and thermally processed alloy. This indicates the unfavourable influence of applied heat treatment (T4 regime) on the corrosion resistance of the thixoformed ZA27 alloy.",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Corrosion behaviour of thixoformed and heat-treated ZA27 alloys in NaCl solution",
volume = "23",
number = "4",
pages = "931-941",
doi = "10.1016/S1003-6326(13)62550-9"
}

Bobić, B. M., Bajat, J. B., Aćimović-Pavlović, Z., Bobić, I.,& Jegdić, B. V.. (2013). Corrosion behaviour of thixoformed and heat-treated ZA27 alloys in NaCl solution. in Transactions of Nonferrous Metals Society of China, 23(4), 931-941.
https://doi.org/10.1016/S1003-6326(13)62550-9

Bobić BM, Bajat JB, Aćimović-Pavlović Z, Bobić I, Jegdić BV. Corrosion behaviour of thixoformed and heat-treated ZA27 alloys in NaCl solution. in Transactions of Nonferrous Metals Society of China. 2013;23(4):931-941.
doi:10.1016/S1003-6326(13)62550-9 .

Bobić, Biljana M., Bajat, Jelena B., Aćimović-Pavlović, Zagorka, Bobić, Ilija, Jegdić, Bore V., "Corrosion behaviour of thixoformed and heat-treated ZA27 alloys in NaCl solution" in Transactions of Nonferrous Metals Society of China, 23, no. 4 (2013):931-941,
https://doi.org/10.1016/S1003-6326(13)62550-9 . .