TY  - JOUR
AU  - Romčević, Nebojša
AU  - Hadžić, Branka
AU  - Prekajski-Đorđević, Marija D.
AU  - Mihailović, Peđa
AU  - Ćurčić, Milica
AU  - Trajić, Jelena
AU  - Mitrić, Jelena
AU  - Romčević, Maja J.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11027
AB  - The effect of laser (532 nm line of Verdi G) heating during the Raman measurements, on partial decomposition of Bi12SiO20 single crystal, was addressed in this study. The degree of decomposition directly depends on the power density and duration of the laser treatment, which are registered by the phonon Raman spectra. After laser treatment, AFM measurements register additional small spherical islands on the surface. Analysis performed on irradiated and unirradiated samples showed significant changes in transmission spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. The material obtained after laser irradiation can be described as specific nanocomposite consisting of bismuth oxide and silicon oxide-based nano-objects (dimensions below 15 nm in diameter), which are arranged in a matrix of Bi12SiO20.
T2  - Journal of Spectroscopy
T1  - Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study
VL  - InPress
SP  - e5490018
DO  - 10.1155/2023/5490018
ER  - 

@article{
author = "Romčević, Nebojša and Hadžić, Branka and Prekajski-Đorđević, Marija D. and Mihailović, Peđa and Ćurčić, Milica and Trajić, Jelena and Mitrić, Jelena and Romčević, Maja J.",
year = "2023",
abstract = "The effect of laser (532 nm line of Verdi G) heating during the Raman measurements, on partial decomposition of Bi12SiO20 single crystal, was addressed in this study. The degree of decomposition directly depends on the power density and duration of the laser treatment, which are registered by the phonon Raman spectra. After laser treatment, AFM measurements register additional small spherical islands on the surface. Analysis performed on irradiated and unirradiated samples showed significant changes in transmission spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. The material obtained after laser irradiation can be described as specific nanocomposite consisting of bismuth oxide and silicon oxide-based nano-objects (dimensions below 15 nm in diameter), which are arranged in a matrix of Bi12SiO20.",
journal = "Journal of Spectroscopy",
title = "Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study",
volume = "InPress",
pages = "e5490018",
doi = "10.1155/2023/5490018"
}

Romčević, N., Hadžić, B., Prekajski-Đorđević, M. D., Mihailović, P., Ćurčić, M., Trajić, J., Mitrić, J.,& Romčević, M. J.. (2023). Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study. in Journal of Spectroscopy, InPress, e5490018.
https://doi.org/10.1155/2023/5490018

Romčević N, Hadžić B, Prekajski-Đorđević MD, Mihailović P, Ćurčić M, Trajić J, Mitrić J, Romčević MJ. Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study. in Journal of Spectroscopy. 2023;InPress:e5490018.
doi:10.1155/2023/5490018 .

Romčević, Nebojša, Hadžić, Branka, Prekajski-Đorđević, Marija D., Mihailović, Peđa, Ćurčić, Milica, Trajić, Jelena, Mitrić, Jelena, Romčević, Maja J., "Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study" in Journal of Spectroscopy, InPress (2023):e5490018,
https://doi.org/10.1155/2023/5490018 . .

TY  - JOUR
AU  - Hadžić, Branka B.
AU  - Matović, Branko
AU  - Ranđelović, Marjan S.
AU  - Kostić, Radmila
AU  - Romčević, Maja J.
AU  - Trajić, Jelena
AU  - Paunović, Novica
AU  - Romčević, Nebojša Ž.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9788
AB  - In the present work experimental study of the ZnO@ZnS core-shell nanostructure with an active layer obtained by conversion of zinc oxide powders with H2S is reported. Тhe prepared structures were characterized by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and far-infrared spectroscopy. Top surface optical phonon (TSO) in ZnO, characteristic for the cylindrical nano-objects, the surface optical phonon (SOP) mode of ZnS, and SOP modes in ZnO@ZnS core-shell nanostructure are registered. Local mode of oxygen in ZnS and gap mode of sulfur in ZnO are also registered. This result is due to the existence of an active layer in the space between ZnO core and ZnS shell, which is very important for the application of these materials as thermoelectrics. © 2020 John Wiley & Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Phonons investigation of ZnO@ZnS core-shell nanostructures with active layer
VL  - 52
IS  - 3
SP  - 616
EP  - 625
DO  - 10.1002/jrs.6058
ER  - 

@article{
author = "Hadžić, Branka B. and Matović, Branko and Ranđelović, Marjan S. and Kostić, Radmila and Romčević, Maja J. and Trajić, Jelena and Paunović, Novica and Romčević, Nebojša Ž.",
year = "2021",
abstract = "In the present work experimental study of the ZnO@ZnS core-shell nanostructure with an active layer obtained by conversion of zinc oxide powders with H2S is reported. Тhe prepared structures were characterized by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and far-infrared spectroscopy. Top surface optical phonon (TSO) in ZnO, characteristic for the cylindrical nano-objects, the surface optical phonon (SOP) mode of ZnS, and SOP modes in ZnO@ZnS core-shell nanostructure are registered. Local mode of oxygen in ZnS and gap mode of sulfur in ZnO are also registered. This result is due to the existence of an active layer in the space between ZnO core and ZnS shell, which is very important for the application of these materials as thermoelectrics. © 2020 John Wiley & Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Phonons investigation of ZnO@ZnS core-shell nanostructures with active layer",
volume = "52",
number = "3",
pages = "616-625",
doi = "10.1002/jrs.6058"
}

Hadžić, B. B., Matović, B., Ranđelović, M. S., Kostić, R., Romčević, M. J., Trajić, J., Paunović, N.,& Romčević, N. Ž.. (2021). Phonons investigation of ZnO@ZnS core-shell nanostructures with active layer. in Journal of Raman Spectroscopy, 52(3), 616-625.
https://doi.org/10.1002/jrs.6058

Hadžić BB, Matović B, Ranđelović MS, Kostić R, Romčević MJ, Trajić J, Paunović N, Romčević NŽ. Phonons investigation of ZnO@ZnS core-shell nanostructures with active layer. in Journal of Raman Spectroscopy. 2021;52(3):616-625.
doi:10.1002/jrs.6058 .

Hadžić, Branka B., Matović, Branko, Ranđelović, Marjan S., Kostić, Radmila, Romčević, Maja J., Trajić, Jelena, Paunović, Novica, Romčević, Nebojša Ž., "Phonons investigation of ZnO@ZnS core-shell nanostructures with active layer" in Journal of Raman Spectroscopy, 52, no. 3 (2021):616-625,
https://doi.org/10.1002/jrs.6058 . .

TY  - JOUR
AU  - Ćurčić, Milica
AU  - Hadžić, Branka B.
AU  - Gilić, Martina
AU  - Radojević, Vesna
AU  - Bjelajac, Anđelika
AU  - Radović, Ivana M.
AU  - Timotijević, Dejan
AU  - Romčević, Maja J.
AU  - Trajić, Jelena
AU  - Romčević, Nebojša Ž.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8494
AB  - The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite. © 2019 Elsevier B.V.
T2  - Physica E: Low-dimensional Systems and Nanostructures
T1  - Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
VL  - 115
SP  - 113708
DO  - 10.1016/j.physe.2019.113708
ER  - 

@article{
author = "Ćurčić, Milica and Hadžić, Branka B. and Gilić, Martina and Radojević, Vesna and Bjelajac, Anđelika and Radović, Ivana M. and Timotijević, Dejan and Romčević, Maja J. and Trajić, Jelena and Romčević, Nebojša Ž.",
year = "2020",
abstract = "The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite. © 2019 Elsevier B.V.",
journal = "Physica E: Low-dimensional Systems and Nanostructures",
title = "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites",
volume = "115",
pages = "113708",
doi = "10.1016/j.physe.2019.113708"
}

Ćurčić, M., Hadžić, B. B., Gilić, M., Radojević, V., Bjelajac, A., Radović, I. M., Timotijević, D., Romčević, M. J., Trajić, J.,& Romčević, N. Ž.. (2020). Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-dimensional Systems and Nanostructures, 115, 113708.
https://doi.org/10.1016/j.physe.2019.113708

Ćurčić M, Hadžić BB, Gilić M, Radojević V, Bjelajac A, Radović IM, Timotijević D, Romčević MJ, Trajić J, Romčević NŽ. Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites. in Physica E: Low-dimensional Systems and Nanostructures. 2020;115:113708.
doi:10.1016/j.physe.2019.113708 .

Ćurčić, Milica, Hadžić, Branka B., Gilić, Martina, Radojević, Vesna, Bjelajac, Anđelika, Radović, Ivana M., Timotijević, Dejan, Romčević, Maja J., Trajić, Jelena, Romčević, Nebojša Ž., "Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites" in Physica E: Low-dimensional Systems and Nanostructures, 115 (2020):113708,
https://doi.org/10.1016/j.physe.2019.113708 . .

TY  - JOUR
AU  - Hadžić, Branka B.
AU  - Vasić, Borislav Z.
AU  - Matović, Branko
AU  - Kuryliszyn-Kudelska, Izabela
AU  - Dobrowolski, Witold D.
AU  - Romčević, Maja J.
AU  - Romčević, Nebojša Ž.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7778
AB  - The phase changes of MnO nanoparticles under laser-induced heating have been studied. Previous confirmation of the existence of MnO phase was based on the X-ray diffraction measurements. Here, we report the experimental spectra of nonresonant Raman scattering in the range between 100 and 1,600cm(-1), for a sample irradiated with 8 different laser powers. The laser-induced heating has produced change in existing phases in sample, destruction of MnO phase, and creation of MnO2, Mn3O4, and MnOOH phases along with formation of Mn2+ on the sample surface. These phase changes have been confirmed by X-ray diffraction and atomic force microscopy measurements.
T2  - Journal of Raman Spectroscopy
T1  - Influence of laser-induced heating on MnO nanoparticles
VL  - 49
IS  - 5
SP  - 817
EP  - 821
DO  - 10.1002/jrs.5358
ER  - 

@article{
author = "Hadžić, Branka B. and Vasić, Borislav Z. and Matović, Branko and Kuryliszyn-Kudelska, Izabela and Dobrowolski, Witold D. and Romčević, Maja J. and Romčević, Nebojša Ž.",
year = "2018",
abstract = "The phase changes of MnO nanoparticles under laser-induced heating have been studied. Previous confirmation of the existence of MnO phase was based on the X-ray diffraction measurements. Here, we report the experimental spectra of nonresonant Raman scattering in the range between 100 and 1,600cm(-1), for a sample irradiated with 8 different laser powers. The laser-induced heating has produced change in existing phases in sample, destruction of MnO phase, and creation of MnO2, Mn3O4, and MnOOH phases along with formation of Mn2+ on the sample surface. These phase changes have been confirmed by X-ray diffraction and atomic force microscopy measurements.",
journal = "Journal of Raman Spectroscopy",
title = "Influence of laser-induced heating on MnO nanoparticles",
volume = "49",
number = "5",
pages = "817-821",
doi = "10.1002/jrs.5358"
}

Hadžić, B. B., Vasić, B. Z., Matović, B., Kuryliszyn-Kudelska, I., Dobrowolski, W. D., Romčević, M. J.,& Romčević, N. Ž.. (2018). Influence of laser-induced heating on MnO nanoparticles. in Journal of Raman Spectroscopy, 49(5), 817-821.
https://doi.org/10.1002/jrs.5358

Hadžić BB, Vasić BZ, Matović B, Kuryliszyn-Kudelska I, Dobrowolski WD, Romčević MJ, Romčević NŽ. Influence of laser-induced heating on MnO nanoparticles. in Journal of Raman Spectroscopy. 2018;49(5):817-821.
doi:10.1002/jrs.5358 .

Hadžić, Branka B., Vasić, Borislav Z., Matović, Branko, Kuryliszyn-Kudelska, Izabela, Dobrowolski, Witold D., Romčević, Maja J., Romčević, Nebojša Ž., "Influence of laser-induced heating on MnO nanoparticles" in Journal of Raman Spectroscopy, 49, no. 5 (2018):817-821,
https://doi.org/10.1002/jrs.5358 . .

TY  - JOUR
AU  - Šević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Križan, Janez
AU  - Savić-Šević, Svetlana N.
AU  - Mitrić, Miodrag
AU  - Gilić, Martina D.
AU  - Hadžić, Branka B.
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1421
AB  - In this paper we describe the synthesis and characterization of the YVO4:Eu3+ nanopowder. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM), Raman and photoluminescence (PL) techniques were used to confirm and characterize the prepared material. The time resolved analysis of emission spectra was achieved by using the streak camera system. Beside luminescence lifetime of slow decayed transitions we also measured their rise time and lifetime of fast decayed transitions. We also determitied the excitation spectra of this nano material. Results of our analysis prove that YVO4:Eu3(+) nanopowder is appropriate material for various optoelectronic devices. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders
VL  - 88
SP  - 121
EP  - 126
DO  - 10.1016/j.materresbull.2016.12.021
ER  - 

@article{
author = "Šević, Dragutin M. and Rabasović, Maja S. and Križan, Janez and Savić-Šević, Svetlana N. and Mitrić, Miodrag and Gilić, Martina D. and Hadžić, Branka B. and Romčević, Nebojša Ž.",
year = "2017",
abstract = "In this paper we describe the synthesis and characterization of the YVO4:Eu3+ nanopowder. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM), Raman and photoluminescence (PL) techniques were used to confirm and characterize the prepared material. The time resolved analysis of emission spectra was achieved by using the streak camera system. Beside luminescence lifetime of slow decayed transitions we also measured their rise time and lifetime of fast decayed transitions. We also determitied the excitation spectra of this nano material. Results of our analysis prove that YVO4:Eu3(+) nanopowder is appropriate material for various optoelectronic devices. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders",
volume = "88",
pages = "121-126",
doi = "10.1016/j.materresbull.2016.12.021"
}

Šević, D. M., Rabasović, M. S., Križan, J., Savić-Šević, S. N., Mitrić, M., Gilić, M. D., Hadžić, B. B.,& Romčević, N. Ž.. (2017). Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders. in Materials Research Bulletin, 88, 121-126.
https://doi.org/10.1016/j.materresbull.2016.12.021

Šević DM, Rabasović MS, Križan J, Savić-Šević SN, Mitrić M, Gilić MD, Hadžić BB, Romčević NŽ. Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders. in Materials Research Bulletin. 2017;88:121-126.
doi:10.1016/j.materresbull.2016.12.021 .

Šević, Dragutin M., Rabasović, Maja S., Križan, Janez, Savić-Šević, Svetlana N., Mitrić, Miodrag, Gilić, Martina D., Hadžić, Branka B., Romčević, Nebojša Ž., "Characterization and luminescence kinetics of Eu3+ doped YVO4 nanopowders" in Materials Research Bulletin, 88 (2017):121-126,
https://doi.org/10.1016/j.materresbull.2016.12.021 . .

TY  - JOUR
AU  - Kovačević, Aleksander
AU  - Ristić-Đurović, Jasna L.
AU  - Lekic, Marina
AU  - Hadžić, Branka B.
AU  - Abudagel, Giuma Saleh Isa
AU  - Petričević, Slobodan
AU  - Mihailovic, Pedja
AU  - Matović, Branko
AU  - Dramlić, Dragan M.
AU  - Brajovic, Ljiljana M.
AU  - Romčević, Nebojša Ž.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1235
AB  - High quality bismuth germanium oxide single crystals were irradiated by a femtosecond pulsed laser beam of increasing power. Analyses performed on irradiated and unirradiated samples showed significant changes in transmittance, transmission spectra, sample color, Raman spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. After irradiation, the transmission spectra values increased whereas anisotropy detected in the transmission spectra of unirradiated samples disappeared. The change of color caused by irradiation was noticeable to the naked eye. The XRD measurements confirmed structural changes induced by laser irradiation, i.e., the laser-beam-incident side of the sample became almost amorphous, whereas the side opposite to the incident can be indexed to the Bi12GeO20 compound. Irradiation caused increase of Raman spectra peaks with the exception of crystal peaks of type E, which disappeared. The femtosecond pulsed laser irradiation can be used to improve bismuth germanium oxide single crystal optical properties. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties
VL  - 83
SP  - 284
EP  - 289
DO  - 10.1016/j.materresbull.2016.06.023
ER  - 

@article{
author = "Kovačević, Aleksander and Ristić-Đurović, Jasna L. and Lekic, Marina and Hadžić, Branka B. and Abudagel, Giuma Saleh Isa and Petričević, Slobodan and Mihailovic, Pedja and Matović, Branko and Dramlić, Dragan M. and Brajovic, Ljiljana M. and Romčević, Nebojša Ž.",
year = "2016",
abstract = "High quality bismuth germanium oxide single crystals were irradiated by a femtosecond pulsed laser beam of increasing power. Analyses performed on irradiated and unirradiated samples showed significant changes in transmittance, transmission spectra, sample color, Raman spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. After irradiation, the transmission spectra values increased whereas anisotropy detected in the transmission spectra of unirradiated samples disappeared. The change of color caused by irradiation was noticeable to the naked eye. The XRD measurements confirmed structural changes induced by laser irradiation, i.e., the laser-beam-incident side of the sample became almost amorphous, whereas the side opposite to the incident can be indexed to the Bi12GeO20 compound. Irradiation caused increase of Raman spectra peaks with the exception of crystal peaks of type E, which disappeared. The femtosecond pulsed laser irradiation can be used to improve bismuth germanium oxide single crystal optical properties. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties",
volume = "83",
pages = "284-289",
doi = "10.1016/j.materresbull.2016.06.023"
}

Kovačević, A., Ristić-Đurović, J. L., Lekic, M., Hadžić, B. B., Abudagel, G. S. I., Petričević, S., Mihailovic, P., Matović, B., Dramlić, D. M., Brajovic, L. M.,& Romčević, N. Ž.. (2016). Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties. in Materials Research Bulletin, 83, 284-289.
https://doi.org/10.1016/j.materresbull.2016.06.023

Kovačević A, Ristić-Đurović JL, Lekic M, Hadžić BB, Abudagel GSI, Petričević S, Mihailovic P, Matović B, Dramlić DM, Brajovic LM, Romčević NŽ. Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties. in Materials Research Bulletin. 2016;83:284-289.
doi:10.1016/j.materresbull.2016.06.023 .

Kovačević, Aleksander, Ristić-Đurović, Jasna L., Lekic, Marina, Hadžić, Branka B., Abudagel, Giuma Saleh Isa, Petričević, Slobodan, Mihailovic, Pedja, Matović, Branko, Dramlić, Dragan M., Brajovic, Ljiljana M., Romčević, Nebojša Ž., "Influence of femtosecond pulsed laser irradiation on bismuth germanium oxide single crystal properties" in Materials Research Bulletin, 83 (2016):284-289,
https://doi.org/10.1016/j.materresbull.2016.06.023 . .

TY  - JOUR
AU  - Romčević, Nebojša Ž.
AU  - Gilić, Martina D.
AU  - Anzel, I.
AU  - Rudolf, R.
AU  - Mitrić, Miodrag
AU  - Romčević, Maja J.
AU  - Hadžić, Branka B.
AU  - Joksimović, Danijela
AU  - Damjanovic, M. Petrovic
AU  - Kos, M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5968
AB  - Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metal-matrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of Cu, CuO, Cu2O, Cu4O3 or Al2O3 structural characteristics, depending on type of sample.
T2  - Journal of mining and metallurgy, Section B: Metallurgy
T1  - Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study
VL  - 50
IS  - 1
SP  - 61
EP  - 68
DO  - 10.2298/JMMB140121007R
ER  - 

@article{
author = "Romčević, Nebojša Ž. and Gilić, Martina D. and Anzel, I. and Rudolf, R. and Mitrić, Miodrag and Romčević, Maja J. and Hadžić, Branka B. and Joksimović, Danijela and Damjanovic, M. Petrovic and Kos, M.",
year = "2014",
abstract = "Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metal-matrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of Cu, CuO, Cu2O, Cu4O3 or Al2O3 structural characteristics, depending on type of sample.",
journal = "Journal of mining and metallurgy, Section B: Metallurgy",
title = "Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study",
volume = "50",
number = "1",
pages = "61-68",
doi = "10.2298/JMMB140121007R"
}

Romčević, N. Ž., Gilić, M. D., Anzel, I., Rudolf, R., Mitrić, M., Romčević, M. J., Hadžić, B. B., Joksimović, D., Damjanovic, M. P.,& Kos, M.. (2014). Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study. in Journal of mining and metallurgy, Section B: Metallurgy, 50(1), 61-68.
https://doi.org/10.2298/JMMB140121007R

Romčević NŽ, Gilić MD, Anzel I, Rudolf R, Mitrić M, Romčević MJ, Hadžić BB, Joksimović D, Damjanovic MP, Kos M. Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study. in Journal of mining and metallurgy, Section B: Metallurgy. 2014;50(1):61-68.
doi:10.2298/JMMB140121007R .

Romčević, Nebojša Ž., Gilić, Martina D., Anzel, I., Rudolf, R., Mitrić, Miodrag, Romčević, Maja J., Hadžić, Branka B., Joksimović, Danijela, Damjanovic, M. Petrovic, Kos, M., "Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study" in Journal of mining and metallurgy, Section B: Metallurgy, 50, no. 1 (2014):61-68,
https://doi.org/10.2298/JMMB140121007R . .

TY  - JOUR
AU  - Veselinović, Ljiljana M.
AU  - Mitrić, Miodrag
AU  - Mančić, Lidija
AU  - Vukomanovic, Marija
AU  - Hadžić, Branka B.
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6022
AB  - The effect of Sn for Ti substitution on the crystal structure of a perovskite, barium titanate stannate (BTS), BaTi1-xSnxO3 for x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20, was investigated. The powders were prepared by the conventional solid-state reaction technique. The structural investigations of the BTS powders were done at room temperature by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy analyses. Rietveld refinement of XRD data indicates that gradual replacement of titanium by tin in BaTiO3 provokes a phase transition from tetragonal for 0 LT = x LT = 0.07 to cubic for x = 0.12, 0.15 and 0.20. The coexistence of tetragonal (P4mm) and cubic (Pm (3) over barm) crystal phases was established in powder with nominal composition BaTi0.9Sn0.1O3. The crystal phases determined by Rietveld refinement were confirmed by HRTEM and SAED analyses. The crystal structures of the BTS powders at short-range scale were studied by Raman spectroscopy, which shows tetragonal (P4mm) and a small fraction of orthorhombic (Pmm2) crystal phases for all the examined BTS powders, implying a lower local ordering when compared to the average symmetry.
T2  - Journal of Applied Crystallography
T1  - The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1-xSnxO3 (0 LT = x LT = 0.20)
VL  - 47
SP  - 999
EP  - 1007
DO  - 10.1107/S1600576714007584
ER  - 

@article{
author = "Veselinović, Ljiljana M. and Mitrić, Miodrag and Mančić, Lidija and Vukomanovic, Marija and Hadžić, Branka B. and Marković, Smilja and Uskoković, Dragan",
year = "2014",
abstract = "The effect of Sn for Ti substitution on the crystal structure of a perovskite, barium titanate stannate (BTS), BaTi1-xSnxO3 for x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20, was investigated. The powders were prepared by the conventional solid-state reaction technique. The structural investigations of the BTS powders were done at room temperature by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy analyses. Rietveld refinement of XRD data indicates that gradual replacement of titanium by tin in BaTiO3 provokes a phase transition from tetragonal for 0 LT = x LT = 0.07 to cubic for x = 0.12, 0.15 and 0.20. The coexistence of tetragonal (P4mm) and cubic (Pm (3) over barm) crystal phases was established in powder with nominal composition BaTi0.9Sn0.1O3. The crystal phases determined by Rietveld refinement were confirmed by HRTEM and SAED analyses. The crystal structures of the BTS powders at short-range scale were studied by Raman spectroscopy, which shows tetragonal (P4mm) and a small fraction of orthorhombic (Pmm2) crystal phases for all the examined BTS powders, implying a lower local ordering when compared to the average symmetry.",
journal = "Journal of Applied Crystallography",
title = "The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1-xSnxO3 (0 LT = x LT = 0.20)",
volume = "47",
pages = "999-1007",
doi = "10.1107/S1600576714007584"
}

Veselinović, L. M., Mitrić, M., Mančić, L., Vukomanovic, M., Hadžić, B. B., Marković, S.,& Uskoković, D.. (2014). The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1-xSnxO3 (0 LT = x LT = 0.20). in Journal of Applied Crystallography, 47, 999-1007.
https://doi.org/10.1107/S1600576714007584

Veselinović LM, Mitrić M, Mančić L, Vukomanovic M, Hadžić BB, Marković S, Uskoković D. The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1-xSnxO3 (0 LT = x LT = 0.20). in Journal of Applied Crystallography. 2014;47:999-1007.
doi:10.1107/S1600576714007584 .

Veselinović, Ljiljana M., Mitrić, Miodrag, Mančić, Lidija, Vukomanovic, Marija, Hadžić, Branka B., Marković, Smilja, Uskoković, Dragan, "The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1-xSnxO3 (0 LT = x LT = 0.20)" in Journal of Applied Crystallography, 47 (2014):999-1007,
https://doi.org/10.1107/S1600576714007584 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Marjanović, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Andrić, Velibor
AU  - Hadžić, Branka B.
AU  - Vukanac, Ivana
AU  - Durdevic, Ivana
AU  - Srećković, Milesa
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5214
AB  - The effects induced by alpha-particles and laser beam irradiation in air atmosphere in uncured and cured bisbenzocyclobutene (BCB) 2 mu m thick films, spin-coated on glass/ITO surface have been investigated. alpha-Particle irradiation was done by means of a thin film Am-241 source (E-alpha = 5.486 MeV), up to the total fluence of about 5 x 10(10) particles/cm(2). Laser irradiation was performed by a Nd3+:YAG (lambda = 1.06 mu m) laser in the free generation and the Q-switch regime, using both focused and unfocused beams. Irradiation induced changes were investigated using Light and Atomic Force Microscopy (AFM), infrared (IR), Ultraviolet/visible (UV/vis) and Raman spectroscopy by inspecting several uncured and cured BCB films before and after irradiation. It has been found that both types of irradiation under investigated conditions have produced a novel phase in the material, which is not present either in the uncured or the cured BCB films. Possible implications of the observed effects on curing and degradation of BCB films have been discussed. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Progress in Organic Coatings
T1  - Changes of properties of cured and uncured disiloxane bisbenzocyclobutene thin films under irradiation
VL  - 76
IS  - 1
SP  - 257
EP  - 262
DO  - 10.1016/j.porgcoat.2012.09.011
ER  - 

@article{
author = "Ivanović, Nenad and Marjanović, Nenad and Rakočević, Zlatko Lj. and Andrić, Velibor and Hadžić, Branka B. and Vukanac, Ivana and Durdevic, Ivana and Srećković, Milesa",
year = "2013",
abstract = "The effects induced by alpha-particles and laser beam irradiation in air atmosphere in uncured and cured bisbenzocyclobutene (BCB) 2 mu m thick films, spin-coated on glass/ITO surface have been investigated. alpha-Particle irradiation was done by means of a thin film Am-241 source (E-alpha = 5.486 MeV), up to the total fluence of about 5 x 10(10) particles/cm(2). Laser irradiation was performed by a Nd3+:YAG (lambda = 1.06 mu m) laser in the free generation and the Q-switch regime, using both focused and unfocused beams. Irradiation induced changes were investigated using Light and Atomic Force Microscopy (AFM), infrared (IR), Ultraviolet/visible (UV/vis) and Raman spectroscopy by inspecting several uncured and cured BCB films before and after irradiation. It has been found that both types of irradiation under investigated conditions have produced a novel phase in the material, which is not present either in the uncured or the cured BCB films. Possible implications of the observed effects on curing and degradation of BCB films have been discussed. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "Changes of properties of cured and uncured disiloxane bisbenzocyclobutene thin films under irradiation",
volume = "76",
number = "1",
pages = "257-262",
doi = "10.1016/j.porgcoat.2012.09.011"
}

Ivanović, N., Marjanović, N., Rakočević, Z. Lj., Andrić, V., Hadžić, B. B., Vukanac, I., Durdevic, I.,& Srećković, M.. (2013). Changes of properties of cured and uncured disiloxane bisbenzocyclobutene thin films under irradiation. in Progress in Organic Coatings, 76(1), 257-262.
https://doi.org/10.1016/j.porgcoat.2012.09.011

Ivanović N, Marjanović N, Rakočević ZL, Andrić V, Hadžić BB, Vukanac I, Durdevic I, Srećković M. Changes of properties of cured and uncured disiloxane bisbenzocyclobutene thin films under irradiation. in Progress in Organic Coatings. 2013;76(1):257-262.
doi:10.1016/j.porgcoat.2012.09.011 .

Ivanović, Nenad, Marjanović, Nenad, Rakočević, Zlatko Lj., Andrić, Velibor, Hadžić, Branka B., Vukanac, Ivana, Durdevic, Ivana, Srećković, Milesa, "Changes of properties of cured and uncured disiloxane bisbenzocyclobutene thin films under irradiation" in Progress in Organic Coatings, 76, no. 1 (2013):257-262,
https://doi.org/10.1016/j.porgcoat.2012.09.011 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Marjanović, Nenad
AU  - Grbović-Novaković, Jasmina
AU  - Manasijević, Miodrag
AU  - Rakočević, Zlatko Lj.
AU  - Andrić, Velibor
AU  - Hadžić, Branka B.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3906
AB  - The main challenge in the large-scale commercial applications of benzocyclobutene (BCB) dielectrics is to perform their curing rapidly and efficiently at low temperatures, and in the same time, to obtain large area, high quality, pinhole free dielectric thin films. For that purpose, we investigated numerous uncured and cured BCB films, approximately 2 mu m thick, spin-coated on glass/ITO surface, using optical and AFM microscopy, infrared (IR) and Raman spectroscopy, and complete these results with appropriate Linear Combination of Atomic Orbitals (LCAO) calculations. That way we relate microscopic characteristics of the involved molecules, and macroscopic properties of the cured and uncured polymers, which is important for their practical applications.
T2  - Materials and Manufacturing Processes
T1  - Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films
VL  - 24
IS  - 10-11
SP  - 1180
EP  - 1184
DO  - 10.1080/10426910902978811
ER  - 

@article{
author = "Ivanović, Nenad and Marjanović, Nenad and Grbović-Novaković, Jasmina and Manasijević, Miodrag and Rakočević, Zlatko Lj. and Andrić, Velibor and Hadžić, Branka B.",
year = "2009",
abstract = "The main challenge in the large-scale commercial applications of benzocyclobutene (BCB) dielectrics is to perform their curing rapidly and efficiently at low temperatures, and in the same time, to obtain large area, high quality, pinhole free dielectric thin films. For that purpose, we investigated numerous uncured and cured BCB films, approximately 2 mu m thick, spin-coated on glass/ITO surface, using optical and AFM microscopy, infrared (IR) and Raman spectroscopy, and complete these results with appropriate Linear Combination of Atomic Orbitals (LCAO) calculations. That way we relate microscopic characteristics of the involved molecules, and macroscopic properties of the cured and uncured polymers, which is important for their practical applications.",
journal = "Materials and Manufacturing Processes",
title = "Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films",
volume = "24",
number = "10-11",
pages = "1180-1184",
doi = "10.1080/10426910902978811"
}

Ivanović, N., Marjanović, N., Grbović-Novaković, J., Manasijević, M., Rakočević, Z. Lj., Andrić, V.,& Hadžić, B. B.. (2009). Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films. in Materials and Manufacturing Processes, 24(10-11), 1180-1184.
https://doi.org/10.1080/10426910902978811

Ivanović N, Marjanović N, Grbović-Novaković J, Manasijević M, Rakočević ZL, Andrić V, Hadžić BB. Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films. in Materials and Manufacturing Processes. 2009;24(10-11):1180-1184.
doi:10.1080/10426910902978811 .

Ivanović, Nenad, Marjanović, Nenad, Grbović-Novaković, Jasmina, Manasijević, Miodrag, Rakočević, Zlatko Lj., Andrić, Velibor, Hadžić, Branka B., "Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films" in Materials and Manufacturing Processes, 24, no. 10-11 (2009):1180-1184,
https://doi.org/10.1080/10426910902978811 . .