Ignjatović, Nenad

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orcid::0000-0002-5749-094X
  • Ignjatović, Nenad (3)
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Author's Bibliography

Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders

Avramović, Ljiljana; Maksimović, Vesna M; Baščarević, Zvezdana; Ignjatović, Nenad; Bugarin, Mile; Marković, Radmila; Nikolic, Nebojša D.

(MDPI, Basel, 2019)

TY  - JOUR
AU  - Avramović, Ljiljana
AU  - Maksimović, Vesna M
AU  - Baščarević, Zvezdana
AU  - Ignjatović, Nenad
AU  - Bugarin, Mile
AU  - Marković, Radmila
AU  - Nikolic, Nebojša D.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1235
AB  - Three different forms of Cu powder particles obtained by either galvanostatic electrolysis or a non-electrolytic method were analyzed by a scanning electron microscope (SEM), X-ray diffraction (XRD) and particle size distribution (PSD). Electrolytic procedures were performed under different hydrogen evolution conditions, leading to the formation of either 3D branched dendrites or disperse cauliflower-like particles. The third type of particles were compact agglomerates of the Cu grains, whose structural characteristics indicated that they were formed by a non-electrolytic method. Unlike the sharp tips that characterize the usual form of Cu dendrites, the ends of both the trunk and branches were globules in the formed dendrites, indicating that a novel type of Cu dendrites was formed in this investigation. Although the macro structures of the particles were extremely varied, they had very similar micro structures because they were constructed by spherical grains. The Cu crystallites were randomly oriented in the dendrites and compact agglomerates of the Cu grains, while the disperse cauliflower-like particles showed (220) and (311) preferred orientation. This indicates that the applied current density affects not only the morphology of the particles, but also their crystal structure. The best performance, defined by the largest specific surface area and the smallest particle size, was by the galvanostatically produced powder consisting of disperse cauliflower-like particles.
PB  - MDPI, Basel
T2  - Metals
T1  - Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders
IS  - 1
VL  - 9
DO  - 10.3390/met9010056
ER  - 
@article{
author = "Avramović, Ljiljana and Maksimović, Vesna M and Baščarević, Zvezdana and Ignjatović, Nenad and Bugarin, Mile and Marković, Radmila and Nikolic, Nebojša D.",
year = "2019",
abstract = "Three different forms of Cu powder particles obtained by either galvanostatic electrolysis or a non-electrolytic method were analyzed by a scanning electron microscope (SEM), X-ray diffraction (XRD) and particle size distribution (PSD). Electrolytic procedures were performed under different hydrogen evolution conditions, leading to the formation of either 3D branched dendrites or disperse cauliflower-like particles. The third type of particles were compact agglomerates of the Cu grains, whose structural characteristics indicated that they were formed by a non-electrolytic method. Unlike the sharp tips that characterize the usual form of Cu dendrites, the ends of both the trunk and branches were globules in the formed dendrites, indicating that a novel type of Cu dendrites was formed in this investigation. Although the macro structures of the particles were extremely varied, they had very similar micro structures because they were constructed by spherical grains. The Cu crystallites were randomly oriented in the dendrites and compact agglomerates of the Cu grains, while the disperse cauliflower-like particles showed (220) and (311) preferred orientation. This indicates that the applied current density affects not only the morphology of the particles, but also their crystal structure. The best performance, defined by the largest specific surface area and the smallest particle size, was by the galvanostatically produced powder consisting of disperse cauliflower-like particles.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders",
number = "1",
volume = "9",
doi = "10.3390/met9010056"
}
Avramović, L., Maksimović, V. M., Baščarević, Z., Ignjatović, N., Bugarin, M., Marković, R.,& Nikolic, N. D.. (2019). Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders. in Metals
MDPI, Basel., 9(1).
https://doi.org/10.3390/met9010056
Avramović L, Maksimović VM, Baščarević Z, Ignjatović N, Bugarin M, Marković R, Nikolic ND. Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders. in Metals. 2019;9(1).
doi:10.3390/met9010056 .
Avramović, Ljiljana, Maksimović, Vesna M, Baščarević, Zvezdana, Ignjatović, Nenad, Bugarin, Mile, Marković, Radmila, Nikolic, Nebojša D., "Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders" in Metals, 9, no. 1 (2019),
https://doi.org/10.3390/met9010056 . .
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29

Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions

Nikolic, Nebojša D.; Avramović, Ljiljana; Ivanović, Evica R.; Maksimović, Vesna M; Baščarević, Zvezdana; Ignjatović, Nenad

(Elsevier Science Bv, Amsterdam, 2019)

TY  - JOUR
AU  - Nikolic, Nebojša D.
AU  - Avramović, Ljiljana
AU  - Ivanović, Evica R.
AU  - Maksimović, Vesna M
AU  - Baščarević, Zvezdana
AU  - Ignjatović, Nenad
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1231
AB  - Production of copper powders by the potentiostatic electrolysis under different hydrogen evolution conditions was investigated. Copper powders were characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD), particle size distribution (PSD), and by the determination of the specific surface area (SSA) of the formed powders. Depending on quantity of hydrogen generated during electrolysis, the two types of particles were formed: dendrites and cauliflower-like particles. The dendrites were formed without, while cauliflower-like particles with the quantity of evolved hydrogen enough to achieve strong effect on hydrodynamic conditions in the near-electrode layer. Although macro structure of the particles was very different, they showed similar micro structure. Namely, both types of the particles consisted of small agglomerates of approximately spherical Cu grains at the micro level. The existence of the spherical morphology was just responsible for random orientation of Cu crystallites in both types of particles. The SSA of cauliflower-like particles was more than two times larger than that of the dendrites, while their size was considerably smaller than that of the dendritic particles. In this way, the useful benefit of Cu powder formation in the conditions of vigorous hydrogen evolution is shown.
PB  - Elsevier Science Bv, Amsterdam
T2  - Transactions of Nonferrous Metals Society of China
T1  - Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions
EP  - 1284
IS  - 6
SP  - 1275
VL  - 29
DO  - 10.1016/S1003-6326(19)65034-X
ER  - 
@article{
author = "Nikolic, Nebojša D. and Avramović, Ljiljana and Ivanović, Evica R. and Maksimović, Vesna M and Baščarević, Zvezdana and Ignjatović, Nenad",
year = "2019",
abstract = "Production of copper powders by the potentiostatic electrolysis under different hydrogen evolution conditions was investigated. Copper powders were characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD), particle size distribution (PSD), and by the determination of the specific surface area (SSA) of the formed powders. Depending on quantity of hydrogen generated during electrolysis, the two types of particles were formed: dendrites and cauliflower-like particles. The dendrites were formed without, while cauliflower-like particles with the quantity of evolved hydrogen enough to achieve strong effect on hydrodynamic conditions in the near-electrode layer. Although macro structure of the particles was very different, they showed similar micro structure. Namely, both types of the particles consisted of small agglomerates of approximately spherical Cu grains at the micro level. The existence of the spherical morphology was just responsible for random orientation of Cu crystallites in both types of particles. The SSA of cauliflower-like particles was more than two times larger than that of the dendrites, while their size was considerably smaller than that of the dendritic particles. In this way, the useful benefit of Cu powder formation in the conditions of vigorous hydrogen evolution is shown.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions",
pages = "1284-1275",
number = "6",
volume = "29",
doi = "10.1016/S1003-6326(19)65034-X"
}
Nikolic, N. D., Avramović, L., Ivanović, E. R., Maksimović, V. M., Baščarević, Z.,& Ignjatović, N.. (2019). Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions. in Transactions of Nonferrous Metals Society of China
Elsevier Science Bv, Amsterdam., 29(6), 1275-1284.
https://doi.org/10.1016/S1003-6326(19)65034-X
Nikolic ND, Avramović L, Ivanović ER, Maksimović VM, Baščarević Z, Ignjatović N. Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions. in Transactions of Nonferrous Metals Society of China. 2019;29(6):1275-1284.
doi:10.1016/S1003-6326(19)65034-X .
Nikolic, Nebojša D., Avramović, Ljiljana, Ivanović, Evica R., Maksimović, Vesna M, Baščarević, Zvezdana, Ignjatović, Nenad, "Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions" in Transactions of Nonferrous Metals Society of China, 29, no. 6 (2019):1275-1284,
https://doi.org/10.1016/S1003-6326(19)65034-X . .
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Preparation of TiO2 and ZnO thin films by dip-coating method

Ignjatović, Nenad; Branković, Zorica; Dramicanin, M; Nedeljković, Jovan M.; Uskoković, D

(Trans Tech Publications Ltd, Durnten-Zurich, 1998)

TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Branković, Zorica
AU  - Dramicanin, M
AU  - Nedeljković, Jovan M.
AU  - Uskoković, D
PY  - 1998
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/43
AB  - TiO2 and ZnO thin films were prepared by dip-coating method from TiCl4, and Zn(NO3)(2) precursor solutions, respectively. Basic parameters of the process such as temperature of thermal treatment, heating and cooling regimes, and number of cycles required for obtaining uniformly coated substrates were defined. Microstructural analysis showed that at least 20 cycles must be repeated to obtain a completely covered substrate and continual film of TiO2 at 823 K. In the case of TiO2 film thermally treated at 723 K even n=30 was not enough to produce a continual film. Preparation of continual film of ZnO requires at least n=22, at 773 K. Microstructure and roughness of the prepared films were investigated by AFM method.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Advanced Materials and Processes: Yucomat Ii
T1  - Preparation of TiO2 and ZnO thin films by dip-coating method
EP  - 152
SP  - 147
VL  - 282-2
DO  - 10.4028/www.scientific.net/MSF.282-283.147
ER  - 
@article{
author = "Ignjatović, Nenad and Branković, Zorica and Dramicanin, M and Nedeljković, Jovan M. and Uskoković, D",
year = "1998",
abstract = "TiO2 and ZnO thin films were prepared by dip-coating method from TiCl4, and Zn(NO3)(2) precursor solutions, respectively. Basic parameters of the process such as temperature of thermal treatment, heating and cooling regimes, and number of cycles required for obtaining uniformly coated substrates were defined. Microstructural analysis showed that at least 20 cycles must be repeated to obtain a completely covered substrate and continual film of TiO2 at 823 K. In the case of TiO2 film thermally treated at 723 K even n=30 was not enough to produce a continual film. Preparation of continual film of ZnO requires at least n=22, at 773 K. Microstructure and roughness of the prepared films were investigated by AFM method.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Advanced Materials and Processes: Yucomat Ii",
title = "Preparation of TiO2 and ZnO thin films by dip-coating method",
pages = "152-147",
volume = "282-2",
doi = "10.4028/www.scientific.net/MSF.282-283.147"
}
Ignjatović, N., Branković, Z., Dramicanin, M., Nedeljković, J. M.,& Uskoković, D.. (1998). Preparation of TiO2 and ZnO thin films by dip-coating method. in Advanced Materials and Processes: Yucomat Ii
Trans Tech Publications Ltd, Durnten-Zurich., 282-2, 147-152.
https://doi.org/10.4028/www.scientific.net/MSF.282-283.147
Ignjatović N, Branković Z, Dramicanin M, Nedeljković JM, Uskoković D. Preparation of TiO2 and ZnO thin films by dip-coating method. in Advanced Materials and Processes: Yucomat Ii. 1998;282-2:147-152.
doi:10.4028/www.scientific.net/MSF.282-283.147 .
Ignjatović, Nenad, Branković, Zorica, Dramicanin, M, Nedeljković, Jovan M., Uskoković, D, "Preparation of TiO2 and ZnO thin films by dip-coating method" in Advanced Materials and Processes: Yucomat Ii, 282-2 (1998):147-152,
https://doi.org/10.4028/www.scientific.net/MSF.282-283.147 . .
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