TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Križan, Gregor
AU  - Križan, Janez
AU  - Mitrić, Miodrag
AU  - Paunović, Novica M.
AU  - Milutinović, Aleksandra N.
AU  - Romčević, Nebojša Ž.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8437
AB  - Lithium iron phosphate (LiFePO4) are synthesized in complete and incomplete combustion and calcined at 700°C. The obtained samples were characterized by XRD, IR spectroscopy and magnetic measurement. Morphology of samples was controlled by SEM. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of the strong turbulent flow associated with explosive combustion. © 2019 Optoelectronics and Advanced Materials, Rapid Communications. All rights reserved.
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - Synthesis and spectroscopic characterisation of LiFePO4 cathode materials
VL  - 13
IS  - 3-4
SP  - 228
EP  - 234
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8437
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Križan, Gregor and Križan, Janez and Mitrić, Miodrag and Paunović, Novica M. and Milutinović, Aleksandra N. and Romčević, Nebojša Ž.",
year = "2019",
abstract = "Lithium iron phosphate (LiFePO4) are synthesized in complete and incomplete combustion and calcined at 700°C. The obtained samples were characterized by XRD, IR spectroscopy and magnetic measurement. Morphology of samples was controlled by SEM. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of the strong turbulent flow associated with explosive combustion. © 2019 Optoelectronics and Advanced Materials, Rapid Communications. All rights reserved.",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "Synthesis and spectroscopic characterisation of LiFePO4 cathode materials",
volume = "13",
number = "3-4",
pages = "228-234",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8437"
}

Lazarević, Z. Ž., Križan, G., Križan, J., Mitrić, M., Paunović, N. M., Milutinović, A. N.,& Romčević, N. Ž.. (2019). Synthesis and spectroscopic characterisation of LiFePO4 cathode materials. in Optoelectronics and Advanced Materials, Rapid Communications, 13(3-4), 228-234.
https://hdl.handle.net/21.15107/rcub_vinar_8437

Lazarević ZŽ, Križan G, Križan J, Mitrić M, Paunović NM, Milutinović AN, Romčević NŽ. Synthesis and spectroscopic characterisation of LiFePO4 cathode materials. in Optoelectronics and Advanced Materials, Rapid Communications. 2019;13(3-4):228-234.
https://hdl.handle.net/21.15107/rcub_vinar_8437 .

Lazarević, Zorica Ž., Križan, Gregor, Križan, Janez, Mitrić, Miodrag, Paunović, Novica M., Milutinović, Aleksandra N., Romčević, Nebojša Ž., "Synthesis and spectroscopic characterisation of LiFePO4 cathode materials" in Optoelectronics and Advanced Materials, Rapid Communications, 13, no. 3-4 (2019):228-234,
https://hdl.handle.net/21.15107/rcub_vinar_8437 .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Križan, Gregor
AU  - Križan, Janez
AU  - Milutinović, Aleksandra N.
AU  - Ivanovski, Valentin N.
AU  - Mitrić, Miodrag
AU  - Gilić, Martina
AU  - Umićević, Ana
AU  - Kuryliszyn-Kudelska, Izabela
AU  - Romčević, Nebojša Ž.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8501
AB  - Lithium iron phosphate (LiFePO4, LFP) is one of the widely used cathode materials for rechargeable lithium ion batteries. LFP batteries are widely used for electric vehicles and backup power due to their important advantages such as low cost, lifetime, efficiency, and reliability. There are still several technical challenges that need to be addressed: The increase of energy density or further reduction of their final cost. This paper concerned with the characterization of carbon coated LiFePO4 nanopowder cathode materials produced under different conditions by pulse combustion for providing energy to the reactor for the synthesis. The reactor was built according to the principles of the thermoacoustic burner on the basis of the Helmholtz resonator. The investigated nanopowders are synthesized by complete and incomplete combustion and calcined at 700 °C. The obtained samples were characterized by X-ray diffraction, Fourier transform infrared, Raman, and Mössbauer spectroscopy. Observed low-Temperature magnetic phase transitions definitively identified the crystal phases. The morphology of samples was controlled by scanning electron microscopy. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of strong turbulent flow associated with explosive combustion. © 2019 Author(s).
T2  - Journal of Applied Physics
T1  - Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis
VL  - 126
IS  - 8
SP  - 085109
DO  - 10.1063/1.5100358
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Križan, Gregor and Križan, Janez and Milutinović, Aleksandra N. and Ivanovski, Valentin N. and Mitrić, Miodrag and Gilić, Martina and Umićević, Ana and Kuryliszyn-Kudelska, Izabela and Romčević, Nebojša Ž.",
year = "2019",
abstract = "Lithium iron phosphate (LiFePO4, LFP) is one of the widely used cathode materials for rechargeable lithium ion batteries. LFP batteries are widely used for electric vehicles and backup power due to their important advantages such as low cost, lifetime, efficiency, and reliability. There are still several technical challenges that need to be addressed: The increase of energy density or further reduction of their final cost. This paper concerned with the characterization of carbon coated LiFePO4 nanopowder cathode materials produced under different conditions by pulse combustion for providing energy to the reactor for the synthesis. The reactor was built according to the principles of the thermoacoustic burner on the basis of the Helmholtz resonator. The investigated nanopowders are synthesized by complete and incomplete combustion and calcined at 700 °C. The obtained samples were characterized by X-ray diffraction, Fourier transform infrared, Raman, and Mössbauer spectroscopy. Observed low-Temperature magnetic phase transitions definitively identified the crystal phases. The morphology of samples was controlled by scanning electron microscopy. The aim of this work is to show that it is possible to achieve a desired crystal phase by pulse combustion in a relatively cheap and fast way. The extremely rapid synthesis of almost pure phase material is possible due to the reduction in size of interacting particles and to an enormous number of collisions between them as a result of strong turbulent flow associated with explosive combustion. © 2019 Author(s).",
journal = "Journal of Applied Physics",
title = "Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis",
volume = "126",
number = "8",
pages = "085109",
doi = "10.1063/1.5100358"
}

Lazarević, Z. Ž., Križan, G., Križan, J., Milutinović, A. N., Ivanovski, V. N., Mitrić, M., Gilić, M., Umićević, A., Kuryliszyn-Kudelska, I.,& Romčević, N. Ž.. (2019). Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis. in Journal of Applied Physics, 126(8), 085109.
https://doi.org/10.1063/1.5100358

Lazarević ZŽ, Križan G, Križan J, Milutinović AN, Ivanovski VN, Mitrić M, Gilić M, Umićević A, Kuryliszyn-Kudelska I, Romčević NŽ. Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis. in Journal of Applied Physics. 2019;126(8):085109.
doi:10.1063/1.5100358 .

Lazarević, Zorica Ž., Križan, Gregor, Križan, Janez, Milutinović, Aleksandra N., Ivanovski, Valentin N., Mitrić, Miodrag, Gilić, Martina, Umićević, Ana, Kuryliszyn-Kudelska, Izabela, Romčević, Nebojša Ž., "Characterization of LiFePO4 samples obtained by pulse combustion under various conditions of synthesis" in Journal of Applied Physics, 126, no. 8 (2019):085109,
https://doi.org/10.1063/1.5100358 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Ž.
AU  - Radović, Ivana M.
AU  - Gilić, Martina
AU  - Šević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925346719303131
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8195
AB  - Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements. © 2019
T2  - Optical Materials
T1  - Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications
VL  - 92
SP  - 405
EP  - 410
DO  - 10.1016/j.optmat.2019.05.012
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Ž. and Radović, Ivana M. and Gilić, Martina and Šević, Dragutin M. and Rabasović, Maja S. and Radojević, Vesna",
year = "2019",
abstract = "Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements. © 2019",
journal = "Optical Materials",
title = "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications",
volume = "92",
pages = "405-410",
doi = "10.1016/j.optmat.2019.05.012"
}

Abozaid, R. M., Lazarević, Z. Ž., Radović, I. M., Gilić, M., Šević, D. M., Rabasović, M. S.,& Radojević, V.. (2019). Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials, 92, 405-410.
https://doi.org/10.1016/j.optmat.2019.05.012

Abozaid RM, Lazarević ZŽ, Radović IM, Gilić M, Šević DM, Rabasović MS, Radojević V. Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials. 2019;92:405-410.
doi:10.1016/j.optmat.2019.05.012 .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Ž., Radović, Ivana M., Gilić, Martina, Šević, Dragutin M., Rabasović, Maja S., Radojević, Vesna, "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications" in Optical Materials, 92 (2019):405-410,
https://doi.org/10.1016/j.optmat.2019.05.012 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Gilic, Martina
AU  - Ivanovski, Valentin N.
AU  - Umićević, Ana
AU  - Sekulić, Dalibor L.
AU  - Romčević, Nebojša Ž.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1778
AB  - Yttrium orthoferrite (YFeO3) powder was prepared by a mechanochemical synthesis from a mixture of Y2O3 and alpha-Fe2O3 powders in a planetary ball mill for 2.5 h. The obtained YFeO3 powder sample was characterized by X-ray diffraction (XRD), Raman and infrared spectroscopy. The average crystallite size calculated by the Scherrer equation was 12 nm. The Mossbauer spectroscopy at room temperature confirms the superparamagnetic character of YFeO3 orthoferrite sample.
T2  - Science of Sintering
T1  - Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis
VL  - 49
IS  - 3
SP  - 277
EP  - 284
DO  - 10.2298/SOS1703277L
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Gilic, Martina and Ivanovski, Valentin N. and Umićević, Ana and Sekulić, Dalibor L. and Romčević, Nebojša Ž.",
year = "2017",
abstract = "Yttrium orthoferrite (YFeO3) powder was prepared by a mechanochemical synthesis from a mixture of Y2O3 and alpha-Fe2O3 powders in a planetary ball mill for 2.5 h. The obtained YFeO3 powder sample was characterized by X-ray diffraction (XRD), Raman and infrared spectroscopy. The average crystallite size calculated by the Scherrer equation was 12 nm. The Mossbauer spectroscopy at room temperature confirms the superparamagnetic character of YFeO3 orthoferrite sample.",
journal = "Science of Sintering",
title = "Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis",
volume = "49",
number = "3",
pages = "277-284",
doi = "10.2298/SOS1703277L"
}

Lazarević, Z. Ž., Jovalekić, Č., Gilic, M., Ivanovski, V. N., Umićević, A., Sekulić, D. L.,& Romčević, N. Ž.. (2017). Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis. in Science of Sintering, 49(3), 277-284.
https://doi.org/10.2298/SOS1703277L

Lazarević ZŽ, Jovalekić Č, Gilic M, Ivanovski VN, Umićević A, Sekulić DL, Romčević NŽ. Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis. in Science of Sintering. 2017;49(3):277-284.
doi:10.2298/SOS1703277L .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Gilic, Martina, Ivanovski, Valentin N., Umićević, Ana, Sekulić, Dalibor L., Romčević, Nebojša Ž., "Yttrium Orthoferrite Powder Obtained by the Mechanochemical Synthesis" in Science of Sintering, 49, no. 3 (2017):277-284,
https://doi.org/10.2298/SOS1703277L . .

TY  - CONF
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Sekulić, Dalibor
AU  - Ivanovski, Valentin N.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10886
AB  - In the past few years, a renewed interest has grown in the study of rare-earth orthorhombic perovskites. An important example of this trend is the family of rare-earth orthoferrites, which a general formula RFeO3 , where R is the trivalent rare-earth metal ion. YFeO3  has been prepared by a mechanochemical synthesis in a planetary ball mill. The mechanochemical reaction leading to formation of the YFeO3  phase was followed by X-ray diffraction, Raman and infrarad spectroscopy. The ortoferrite phase formation was first observed after 1 h of milling and its formation was completed after 2.5 h. The synthesized YFeO3  ferrite has a nanocrystalline structure with a crystallite size of about 12.4 nm. There are five Raman active modes. 57Fe Mössbauer spectroscopy was performed in order to provide information on Fe compounds in the Y2 O3  and α-Fe2 O3  mixture.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 5th Serbian Ceramic Society Conference : program and the book of abstracts; September 21-23, 2016; Belgrade
T1  - Spectroscopy Characterization of YFeO3 Obtained by the Mechanochemically Synthesis
SP  - 45
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10886
ER  - 

@conference{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Sekulić, Dalibor and Ivanovski, Valentin N.",
year = "2016",
abstract = "In the past few years, a renewed interest has grown in the study of rare-earth orthorhombic perovskites. An important example of this trend is the family of rare-earth orthoferrites, which a general formula RFeO3 , where R is the trivalent rare-earth metal ion. YFeO3  has been prepared by a mechanochemical synthesis in a planetary ball mill. The mechanochemical reaction leading to formation of the YFeO3  phase was followed by X-ray diffraction, Raman and infrarad spectroscopy. The ortoferrite phase formation was first observed after 1 h of milling and its formation was completed after 2.5 h. The synthesized YFeO3  ferrite has a nanocrystalline structure with a crystallite size of about 12.4 nm. There are five Raman active modes. 57Fe Mössbauer spectroscopy was performed in order to provide information on Fe compounds in the Y2 O3  and α-Fe2 O3  mixture.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 5th Serbian Ceramic Society Conference : program and the book of abstracts; September 21-23, 2016; Belgrade",
title = "Spectroscopy Characterization of YFeO3 Obtained by the Mechanochemically Synthesis",
pages = "45-46",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10886"
}

Lazarević, Z. Ž., Jovalekić, Č., Sekulić, D.,& Ivanovski, V. N.. (2016). Spectroscopy Characterization of YFeO3 Obtained by the Mechanochemically Synthesis. in Advanced Ceramics and Application : 5th Serbian Ceramic Society Conference : program and the book of abstracts; September 21-23, 2016; Belgrade
Belgrade : Serbian Ceramic Society., 45-46.
https://hdl.handle.net/21.15107/rcub_vinar_10886

Lazarević ZŽ, Jovalekić Č, Sekulić D, Ivanovski VN. Spectroscopy Characterization of YFeO3 Obtained by the Mechanochemically Synthesis. in Advanced Ceramics and Application : 5th Serbian Ceramic Society Conference : program and the book of abstracts; September 21-23, 2016; Belgrade. 2016;:45-46.
https://hdl.handle.net/21.15107/rcub_vinar_10886 .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Sekulić, Dalibor, Ivanovski, Valentin N., "Spectroscopy Characterization of YFeO3 Obtained by the Mechanochemically Synthesis" in Advanced Ceramics and Application : 5th Serbian Ceramic Society Conference : program and the book of abstracts; September 21-23, 2016; Belgrade (2016):45-46,
https://hdl.handle.net/21.15107/rcub_vinar_10886 .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Milutinovic, Aleksandra N.
AU  - Jovalekić, Čedomir
AU  - Ivanovski, Valentin N.
AU  - Daneu, Nina
AU  - Mađarević, Ivan
AU  - Romčević, Nebojša Ž.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/386
AB  - Nano crystalline samples of nickel zinc ferrite, Ni0.5Zn0.5Fe2O4 were prepared by mechanochemical route in a planetary ball mill starting from two mixtures of the appropriate quantities of the powders: case (1) oxide powders: NiO, ZnO and alpha-Fe2O3 in one case, and in the second case (2) hydroxide powders: Ni(OH)(2), Zn(OH)(2) and Fe(OH)(3). In order to monitor the progress of chemical reaction and confirm phase formation, powder samples obtained after 5 h and 10 h of milling were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, IR and Mossbauer spectroscopy. It is shown that the soft mechanochemical method, i.e. mechanochemical activation of hydroxides, produces high quality single phase Ni0.5Zn0.5Fe2O4 samples in much more efficient way. From the IR spectroscopy of single phase samples it is obvious that energy of modes depends on the ratio of cations. The deconvolution of Raman spectra allows to separate contributions of different cations to a particular type of vibration and to estimate the degree of inversion. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis
VL  - 63
SP  - 239
EP  - 247
DO  - 10.1016/j.materresbull.2014.12.005
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Milutinovic, Aleksandra N. and Jovalekić, Čedomir and Ivanovski, Valentin N. and Daneu, Nina and Mađarević, Ivan and Romčević, Nebojša Ž.",
year = "2015",
abstract = "Nano crystalline samples of nickel zinc ferrite, Ni0.5Zn0.5Fe2O4 were prepared by mechanochemical route in a planetary ball mill starting from two mixtures of the appropriate quantities of the powders: case (1) oxide powders: NiO, ZnO and alpha-Fe2O3 in one case, and in the second case (2) hydroxide powders: Ni(OH)(2), Zn(OH)(2) and Fe(OH)(3). In order to monitor the progress of chemical reaction and confirm phase formation, powder samples obtained after 5 h and 10 h of milling were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, IR and Mossbauer spectroscopy. It is shown that the soft mechanochemical method, i.e. mechanochemical activation of hydroxides, produces high quality single phase Ni0.5Zn0.5Fe2O4 samples in much more efficient way. From the IR spectroscopy of single phase samples it is obvious that energy of modes depends on the ratio of cations. The deconvolution of Raman spectra allows to separate contributions of different cations to a particular type of vibration and to estimate the degree of inversion. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis",
volume = "63",
pages = "239-247",
doi = "10.1016/j.materresbull.2014.12.005"
}

Lazarević, Z. Ž., Milutinovic, A. N., Jovalekić, Č., Ivanovski, V. N., Daneu, N., Mađarević, I.,& Romčević, N. Ž.. (2015). Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis. in Materials Research Bulletin, 63, 239-247.
https://doi.org/10.1016/j.materresbull.2014.12.005

Lazarević ZŽ, Milutinovic AN, Jovalekić Č, Ivanovski VN, Daneu N, Mađarević I, Romčević NŽ. Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis. in Materials Research Bulletin. 2015;63:239-247.
doi:10.1016/j.materresbull.2014.12.005 .

Lazarević, Zorica Ž., Milutinovic, Aleksandra N., Jovalekić, Čedomir, Ivanovski, Valentin N., Daneu, Nina, Mađarević, Ivan, Romčević, Nebojša Ž., "Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis" in Materials Research Bulletin, 63 (2015):239-247,
https://doi.org/10.1016/j.materresbull.2014.12.005 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Ivanovski, Valentin N.
AU  - Recnik, Aleksander
AU  - Milutinovic, Aleksandra
AU  - Cekić, Božidar Đ.
AU  - Romčević, Nebojša Ž.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6009
AB  - ZnFe2O4 was prepared by a soft mechanochemical route from two starting combinations of powders: (1) Zn(OH)(2)/alpha-Fe2O3 and (2) Zn(OH)(2)/Fe(OH)(3) mixed in a planetary ball mill. The mechanochemical treatment provoked reaction leading to the formation of the ZnFe2O4 spinel phase that was monitored by XRD, TEM, IR and Raman spectroscopy. The spinel phase was first observed after 4 h of milling and its formation was completed after 18 h in both the cases of starting precursors. The synthesized ZnFe2O4 has a nanocrystalline structure with a crystallite size of about 20.3 and 17.6 nm, for the cases (1) and (2), respectively. In the far-infrared reflectivity spectra are seen four active modes. Raman spectra suggest an existence of mixed spinel structure in the obtained nanosamples. In order to confirm phase formation and cation arrangement, Mossbauer measurements were done. Estimated degree of inversion is about 0.58 for both starting mixtures. The magnetic properties of the prepared ZnFe2O4 powders were also studied. The results show that the samples have a typical superparamagnetic-like behavior at room temperature. Higher values of magnetization in the case of samples obtained with starting mixture (2) suggest somewhat higher degree of cation inversion. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Journal of Physics and Chemistry of Solids
T1  - Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route
VL  - 75
IS  - 7
SP  - 869
EP  - 877
DO  - 10.1016/j.jpcs.2014.03.004
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Ivanovski, Valentin N. and Recnik, Aleksander and Milutinovic, Aleksandra and Cekić, Božidar Đ. and Romčević, Nebojša Ž.",
year = "2014",
abstract = "ZnFe2O4 was prepared by a soft mechanochemical route from two starting combinations of powders: (1) Zn(OH)(2)/alpha-Fe2O3 and (2) Zn(OH)(2)/Fe(OH)(3) mixed in a planetary ball mill. The mechanochemical treatment provoked reaction leading to the formation of the ZnFe2O4 spinel phase that was monitored by XRD, TEM, IR and Raman spectroscopy. The spinel phase was first observed after 4 h of milling and its formation was completed after 18 h in both the cases of starting precursors. The synthesized ZnFe2O4 has a nanocrystalline structure with a crystallite size of about 20.3 and 17.6 nm, for the cases (1) and (2), respectively. In the far-infrared reflectivity spectra are seen four active modes. Raman spectra suggest an existence of mixed spinel structure in the obtained nanosamples. In order to confirm phase formation and cation arrangement, Mossbauer measurements were done. Estimated degree of inversion is about 0.58 for both starting mixtures. The magnetic properties of the prepared ZnFe2O4 powders were also studied. The results show that the samples have a typical superparamagnetic-like behavior at room temperature. Higher values of magnetization in the case of samples obtained with starting mixture (2) suggest somewhat higher degree of cation inversion. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Journal of Physics and Chemistry of Solids",
title = "Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route",
volume = "75",
number = "7",
pages = "869-877",
doi = "10.1016/j.jpcs.2014.03.004"
}

Lazarević, Z. Ž., Jovalekić, Č., Ivanovski, V. N., Recnik, A., Milutinovic, A., Cekić, B. Đ.,& Romčević, N. Ž.. (2014). Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route. in Journal of Physics and Chemistry of Solids, 75(7), 869-877.
https://doi.org/10.1016/j.jpcs.2014.03.004

Lazarević ZŽ, Jovalekić Č, Ivanovski VN, Recnik A, Milutinovic A, Cekić BĐ, Romčević NŽ. Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route. in Journal of Physics and Chemistry of Solids. 2014;75(7):869-877.
doi:10.1016/j.jpcs.2014.03.004 .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Ivanovski, Valentin N., Recnik, Aleksander, Milutinovic, Aleksandra, Cekić, Božidar Đ., Romčević, Nebojša Ž., "Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route" in Journal of Physics and Chemistry of Solids, 75, no. 7 (2014):869-877,
https://doi.org/10.1016/j.jpcs.2014.03.004 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekic, C.
AU  - Recnik, A.
AU  - Ivanovski, Valentin N.
AU  - Milutinovic, A.
AU  - Romčević, Maja J.
AU  - Pavlović, Miodrag B.
AU  - Cekić, Božidar Đ.
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5357
AB  - Nickel ferrite, NiFe2O4 has been prepared by a soft mechanochemical route from mixture of (1) Ni(OH)(2) and alpha-Fe2O3 and (2) Ni(OH)(2) and Fe(OH)(3) powders in a planetary ball mill for varying duration. Soft mechanochemical reaction leading to formation of the NiFe2O4 spinel phase was followed by X-ray diffraction, Raman and infrared spectroscopy, TGA, scanning and transmission microscopy. The spinel phase formation was first observed after 4 h of milling and its formation was completed after 25 h in the both cases. The synthesized NiFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 20 and 10 nm respectively for the cases (1) and (2). The final grain size in the system (1) is about twice as large as that in the system (2), what is a consequence of different reaction paths in these two processing routes. There are five Raman and four IR active modes. Mossbauer spectroscopy studies implied on the possible cation distribution between the tetrahedral and octahedral sites in formed NiFe2O4 spinel structure. We were able to estimate the degree of inversion at most 0.82 in the case (1) and 0.66 in the case (2). (c) 2012 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Preparation and characterization of spinel nickel ferrite obtained by the soft mechanochemically assisted synthesis
VL  - 48
IS  - 2
SP  - 404
EP  - 415
DO  - 10.1016/j.materresbull.2012.10.061
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekic, C. and Recnik, A. and Ivanovski, Valentin N. and Milutinovic, A. and Romčević, Maja J. and Pavlović, Miodrag B. and Cekić, Božidar Đ. and Romčević, Nebojša Ž.",
year = "2013",
abstract = "Nickel ferrite, NiFe2O4 has been prepared by a soft mechanochemical route from mixture of (1) Ni(OH)(2) and alpha-Fe2O3 and (2) Ni(OH)(2) and Fe(OH)(3) powders in a planetary ball mill for varying duration. Soft mechanochemical reaction leading to formation of the NiFe2O4 spinel phase was followed by X-ray diffraction, Raman and infrared spectroscopy, TGA, scanning and transmission microscopy. The spinel phase formation was first observed after 4 h of milling and its formation was completed after 25 h in the both cases. The synthesized NiFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 20 and 10 nm respectively for the cases (1) and (2). The final grain size in the system (1) is about twice as large as that in the system (2), what is a consequence of different reaction paths in these two processing routes. There are five Raman and four IR active modes. Mossbauer spectroscopy studies implied on the possible cation distribution between the tetrahedral and octahedral sites in formed NiFe2O4 spinel structure. We were able to estimate the degree of inversion at most 0.82 in the case (1) and 0.66 in the case (2). (c) 2012 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Preparation and characterization of spinel nickel ferrite obtained by the soft mechanochemically assisted synthesis",
volume = "48",
number = "2",
pages = "404-415",
doi = "10.1016/j.materresbull.2012.10.061"
}

Lazarević, Z. Ž., Jovalekic, C., Recnik, A., Ivanovski, V. N., Milutinovic, A., Romčević, M. J., Pavlović, M. B., Cekić, B. Đ.,& Romčević, N. Ž.. (2013). Preparation and characterization of spinel nickel ferrite obtained by the soft mechanochemically assisted synthesis. in Materials Research Bulletin, 48(2), 404-415.
https://doi.org/10.1016/j.materresbull.2012.10.061

Lazarević ZŽ, Jovalekic C, Recnik A, Ivanovski VN, Milutinovic A, Romčević MJ, Pavlović MB, Cekić BĐ, Romčević NŽ. Preparation and characterization of spinel nickel ferrite obtained by the soft mechanochemically assisted synthesis. in Materials Research Bulletin. 2013;48(2):404-415.
doi:10.1016/j.materresbull.2012.10.061 .

Lazarević, Zorica Ž., Jovalekic, C., Recnik, A., Ivanovski, Valentin N., Milutinovic, A., Romčević, Maja J., Pavlović, Miodrag B., Cekić, Božidar Đ., Romčević, Nebojša Ž., "Preparation and characterization of spinel nickel ferrite obtained by the soft mechanochemically assisted synthesis" in Materials Research Bulletin, 48, no. 2 (2013):404-415,
https://doi.org/10.1016/j.materresbull.2012.10.061 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Milutinovic, A.
AU  - Sekulić, Dalibor L.
AU  - Ivanovski, Valentin N.
AU  - Recnik, A.
AU  - Cekić, Božidar Đ.
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7003
AB  - NiFe2O4 and ZnFe2O4 ferrites have been prepared by soft mechanochemical synthesis. The formation of spinel phase and crystal structure of sintered powders were analyzed by X-ray diffraction, Raman spectroscopy, and transmission microscopy. In order to confirm phase formation and cation arrangement, Mossbauer measurements were done. Investigation of the magnetization as a function of magnetic field confirms an expected change of the degree of inversion in the spinel structure with the sintering. The electrical DC/resistivity/conductivity was measured in the temperature range of 298-423 K. Impedance spectroscopy was performed in the wide frequency range (100 Hz-10 MHz) at different temperatures. (C) 2 013 AIP Publishing LLC
T2  - Journal of Applied Physics
T1  - Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis
VL  - 113
IS  - 18
DO  - 10.1063/1.4801962
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Milutinovic, A. and Sekulić, Dalibor L. and Ivanovski, Valentin N. and Recnik, A. and Cekić, Božidar Đ. and Romčević, Nebojša Ž.",
year = "2013",
abstract = "NiFe2O4 and ZnFe2O4 ferrites have been prepared by soft mechanochemical synthesis. The formation of spinel phase and crystal structure of sintered powders were analyzed by X-ray diffraction, Raman spectroscopy, and transmission microscopy. In order to confirm phase formation and cation arrangement, Mossbauer measurements were done. Investigation of the magnetization as a function of magnetic field confirms an expected change of the degree of inversion in the spinel structure with the sintering. The electrical DC/resistivity/conductivity was measured in the temperature range of 298-423 K. Impedance spectroscopy was performed in the wide frequency range (100 Hz-10 MHz) at different temperatures. (C) 2 013 AIP Publishing LLC",
journal = "Journal of Applied Physics",
title = "Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis",
volume = "113",
number = "18",
doi = "10.1063/1.4801962"
}

Lazarević, Z. Ž., Jovalekić, Č., Milutinovic, A., Sekulić, D. L., Ivanovski, V. N., Recnik, A., Cekić, B. Đ.,& Romčević, N. Ž.. (2013). Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis. in Journal of Applied Physics, 113(18).
https://doi.org/10.1063/1.4801962

Lazarević ZŽ, Jovalekić Č, Milutinovic A, Sekulić DL, Ivanovski VN, Recnik A, Cekić BĐ, Romčević NŽ. Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis. in Journal of Applied Physics. 2013;113(18).
doi:10.1063/1.4801962 .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Milutinovic, A., Sekulić, Dalibor L., Ivanovski, Valentin N., Recnik, A., Cekić, Božidar Đ., Romčević, Nebojša Ž., "Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis" in Journal of Applied Physics, 113, no. 18 (2013),
https://doi.org/10.1063/1.4801962 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Mihailović, P.
AU  - Kostić, S.
AU  - Romčević, Maja J.
AU  - Mitrić, Miodrag
AU  - Petričević, S.
AU  - Radunović, J.
AU  - Petrović-Damjanović, M.
AU  - Gilić, Martina D.
AU  - Romčević, Nebojša Ž.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5004
AB  - Bi12GeO20 single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the pale yellow and black single crystals were produced. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and IR spectroscopy. The atomic ratio Bi/Ge was determined for the both crystals. The refractive indexes of both Bi12GeO20 crystals were determined by the spectroscopic ellipsometry method. Important properties of Bi12GeO20 for sensing applications, optical activity, Faraday rotation and absorption were measured and magneto optical quality was calculated and compared. (c) 2012 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Determination of magneto-optical quality and refractive index of bismuth germanium oxide single crystals grown by Czochralski technique
VL  - 34
IS  - 11
SP  - 1849
EP  - 1859
DO  - 10.1016/j.optmat.2012.05.013
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Mihailović, P. and Kostić, S. and Romčević, Maja J. and Mitrić, Miodrag and Petričević, S. and Radunović, J. and Petrović-Damjanović, M. and Gilić, Martina D. and Romčević, Nebojša Ž.",
year = "2012",
abstract = "Bi12GeO20 single crystals were grown by the Czochralski technique. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. As a result of our experiments, the pale yellow and black single crystals were produced. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and IR spectroscopy. The atomic ratio Bi/Ge was determined for the both crystals. The refractive indexes of both Bi12GeO20 crystals were determined by the spectroscopic ellipsometry method. Important properties of Bi12GeO20 for sensing applications, optical activity, Faraday rotation and absorption were measured and magneto optical quality was calculated and compared. (c) 2012 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Determination of magneto-optical quality and refractive index of bismuth germanium oxide single crystals grown by Czochralski technique",
volume = "34",
number = "11",
pages = "1849-1859",
doi = "10.1016/j.optmat.2012.05.013"
}

Lazarević, Z. Ž., Mihailović, P., Kostić, S., Romčević, M. J., Mitrić, M., Petričević, S., Radunović, J., Petrović-Damjanović, M., Gilić, M. D.,& Romčević, N. Ž.. (2012). Determination of magneto-optical quality and refractive index of bismuth germanium oxide single crystals grown by Czochralski technique. in Optical Materials, 34(11), 1849-1859.
https://doi.org/10.1016/j.optmat.2012.05.013

Lazarević ZŽ, Mihailović P, Kostić S, Romčević MJ, Mitrić M, Petričević S, Radunović J, Petrović-Damjanović M, Gilić MD, Romčević NŽ. Determination of magneto-optical quality and refractive index of bismuth germanium oxide single crystals grown by Czochralski technique. in Optical Materials. 2012;34(11):1849-1859.
doi:10.1016/j.optmat.2012.05.013 .

Lazarević, Zorica Ž., Mihailović, P., Kostić, S., Romčević, Maja J., Mitrić, Miodrag, Petričević, S., Radunović, J., Petrović-Damjanović, M., Gilić, Martina D., Romčević, Nebojša Ž., "Determination of magneto-optical quality and refractive index of bismuth germanium oxide single crystals grown by Czochralski technique" in Optical Materials, 34, no. 11 (2012):1849-1859,
https://doi.org/10.1016/j.optmat.2012.05.013 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Jovalekić, Čedomir
AU  - Recnik, A.
AU  - Ivanovski, Valentin N.
AU  - Mitrić, Miodrag
AU  - Romčević, Maja J.
AU  - Paunović, Novica M.
AU  - Cekić, Božidar Đ.
AU  - Romčević, Nebojša Ž.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4525
AB  - Manganese ferrite, MnFe2O4 have been prepared by a soft mechanochemical route from mixture of (a) Mn(OH)(2) and alpha-Fe2O3 and (b) Mn(OH)(2) and Fe(OH)(3) powders in a planetary ball mill. The mixture was activated for varying duration. Soft mechanochemical reaction leading to formation of the MnFe2O4 spinel phase was followed by X-ray diffraction, Raman spectroscopy, scanning and transmission microscopy and magnetization measurements. The spinel phase formation was first observed after 12 h of milling and its formation was completed after 25 h in both cases. The synthesized MnFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 40 and 50 nm respectively for cases (a) and (b). There are five Raman active modes. Measurements after 25 h of milling show magnetization values of 70.4 emu/g and 71.1 emu/g respectively for cases (a) and (b). In order to understand better the whole process of phase formation, Mossbauer measurements were done. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Study of manganese ferrite powders prepared by a soft mechanochemical route
VL  - 509
IS  - 41
SP  - 9977
EP  - 9985
DO  - 10.1016/j.jallcom.2011.08.004
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Jovalekić, Čedomir and Recnik, A. and Ivanovski, Valentin N. and Mitrić, Miodrag and Romčević, Maja J. and Paunović, Novica M. and Cekić, Božidar Đ. and Romčević, Nebojša Ž.",
year = "2011",
abstract = "Manganese ferrite, MnFe2O4 have been prepared by a soft mechanochemical route from mixture of (a) Mn(OH)(2) and alpha-Fe2O3 and (b) Mn(OH)(2) and Fe(OH)(3) powders in a planetary ball mill. The mixture was activated for varying duration. Soft mechanochemical reaction leading to formation of the MnFe2O4 spinel phase was followed by X-ray diffraction, Raman spectroscopy, scanning and transmission microscopy and magnetization measurements. The spinel phase formation was first observed after 12 h of milling and its formation was completed after 25 h in both cases. The synthesized MnFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 40 and 50 nm respectively for cases (a) and (b). There are five Raman active modes. Measurements after 25 h of milling show magnetization values of 70.4 emu/g and 71.1 emu/g respectively for cases (a) and (b). In order to understand better the whole process of phase formation, Mossbauer measurements were done. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Study of manganese ferrite powders prepared by a soft mechanochemical route",
volume = "509",
number = "41",
pages = "9977-9985",
doi = "10.1016/j.jallcom.2011.08.004"
}

Lazarević, Z. Ž., Jovalekić, Č., Recnik, A., Ivanovski, V. N., Mitrić, M., Romčević, M. J., Paunović, N. M., Cekić, B. Đ.,& Romčević, N. Ž.. (2011). Study of manganese ferrite powders prepared by a soft mechanochemical route. in Journal of Alloys and Compounds, 509(41), 9977-9985.
https://doi.org/10.1016/j.jallcom.2011.08.004

Lazarević ZŽ, Jovalekić Č, Recnik A, Ivanovski VN, Mitrić M, Romčević MJ, Paunović NM, Cekić BĐ, Romčević NŽ. Study of manganese ferrite powders prepared by a soft mechanochemical route. in Journal of Alloys and Compounds. 2011;509(41):9977-9985.
doi:10.1016/j.jallcom.2011.08.004 .

Lazarević, Zorica Ž., Jovalekić, Čedomir, Recnik, A., Ivanovski, Valentin N., Mitrić, Miodrag, Romčević, Maja J., Paunović, Novica M., Cekić, Božidar Đ., Romčević, Nebojša Ž., "Study of manganese ferrite powders prepared by a soft mechanochemical route" in Journal of Alloys and Compounds, 509, no. 41 (2011):9977-9985,
https://doi.org/10.1016/j.jallcom.2011.08.004 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Stojanovic, B.
AU  - Romčević, Maja J.
AU  - Mitrić, Miodrag
AU  - Jovalekić, Čedomir
AU  - Romčević, Nebojša Ž.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3411
AB  - Bismuth titanate, Bi4Ti3O12 powders were prepared by mechanically assisted synthesis from their oxides. The diameter of obtained particles depends on time of milling. In order to understand the grain size effects on the crystal structure we measured X-ray, TEM analysis and Raman spectra. The effect of mechanical treatment on the grain size is quite evident: as the milling time increases (3, 6, 12 h), the powder becomes more activated and grain size decrease (7.3, 7.2, 6.9 nm). With reducing the grain size, quantum effects at the Raman spectra, is reflected in the mode position change against balk crystal. And also, coagulation of each line appears, as well as a significant asymmetry of certain modes. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures
VL  - 453
IS  - 1-2
SP  - 499
EP  - 502
DO  - 10.1016/j.jailcom.2006.11.198
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Stojanovic, B. and Romčević, Maja J. and Mitrić, Miodrag and Jovalekić, Čedomir and Romčević, Nebojša Ž.",
year = "2008",
abstract = "Bismuth titanate, Bi4Ti3O12 powders were prepared by mechanically assisted synthesis from their oxides. The diameter of obtained particles depends on time of milling. In order to understand the grain size effects on the crystal structure we measured X-ray, TEM analysis and Raman spectra. The effect of mechanical treatment on the grain size is quite evident: as the milling time increases (3, 6, 12 h), the powder becomes more activated and grain size decrease (7.3, 7.2, 6.9 nm). With reducing the grain size, quantum effects at the Raman spectra, is reflected in the mode position change against balk crystal. And also, coagulation of each line appears, as well as a significant asymmetry of certain modes. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures",
volume = "453",
number = "1-2",
pages = "499-502",
doi = "10.1016/j.jailcom.2006.11.198"
}

Lazarević, Z. Ž., Stojanovic, B., Romčević, M. J., Mitrić, M., Jovalekić, Č.,& Romčević, N. Ž.. (2008). Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures. in Journal of Alloys and Compounds, 453(1-2), 499-502.
https://doi.org/10.1016/j.jailcom.2006.11.198

Lazarević ZŽ, Stojanovic B, Romčević MJ, Mitrić M, Jovalekić Č, Romčević NŽ. Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures. in Journal of Alloys and Compounds. 2008;453(1-2):499-502.
doi:10.1016/j.jailcom.2006.11.198 .

Lazarević, Zorica Ž., Stojanovic, B., Romčević, Maja J., Mitrić, Miodrag, Jovalekić, Čedomir, Romčević, Nebojša Ž., "Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures" in Journal of Alloys and Compounds, 453, no. 1-2 (2008):499-502,
https://doi.org/10.1016/j.jailcom.2006.11.198 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Mišković-Stanković, Vesna B.
AU  - Kačarević-Popović, Zorica M.
AU  - Dražić, D. M.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2867
AB  - Epoxy coatings were formed by cathodic electrodeposition of an epoxy resin on aluminium and modified aluminium surfaces (phosphatized, chromatized-phosphatized and anodized aluminium) using a constant voltage method (resin concentration 10 wt.%, temperature 27 degrees C, applied voltage 250 V). The corrosion behavior of these coatings was investigated during exposure to 3% NaCl using electrochemical impedance spectroscopy (EIS) and polarization measurements. From the dependence of resistance, capacitance and relative permittivity of the coating, obtained from EIS, on the rate of hydrogen evolution reaction in the electrodeposition bath, obtained from polarization curves, it can be observed that the epoxy coating on aluminium and modified aluminium surfaces is a good barrier against the transport of corrosive agents. The time corresponding to contact between electrolyte and aluminium surface under the coating is greater in the case of surface modification by chromato-phosphatized and anodized aluminium than in the case of phosphatize one.
T2  - Journal of the Brazilian Chemical Society
T1  - The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces
VL  - 16
IS  - 1
SP  - 98
EP  - 102
DO  - 10.1590/S0103-50532005000100015
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Mišković-Stanković, Vesna B. and Kačarević-Popović, Zorica M. and Dražić, D. M.",
year = "2005",
abstract = "Epoxy coatings were formed by cathodic electrodeposition of an epoxy resin on aluminium and modified aluminium surfaces (phosphatized, chromatized-phosphatized and anodized aluminium) using a constant voltage method (resin concentration 10 wt.%, temperature 27 degrees C, applied voltage 250 V). The corrosion behavior of these coatings was investigated during exposure to 3% NaCl using electrochemical impedance spectroscopy (EIS) and polarization measurements. From the dependence of resistance, capacitance and relative permittivity of the coating, obtained from EIS, on the rate of hydrogen evolution reaction in the electrodeposition bath, obtained from polarization curves, it can be observed that the epoxy coating on aluminium and modified aluminium surfaces is a good barrier against the transport of corrosive agents. The time corresponding to contact between electrolyte and aluminium surface under the coating is greater in the case of surface modification by chromato-phosphatized and anodized aluminium than in the case of phosphatize one.",
journal = "Journal of the Brazilian Chemical Society",
title = "The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces",
volume = "16",
number = "1",
pages = "98-102",
doi = "10.1590/S0103-50532005000100015"
}

Lazarević, Z. Ž., Mišković-Stanković, V. B., Kačarević-Popović, Z. M.,& Dražić, D. M.. (2005). The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces. in Journal of the Brazilian Chemical Society, 16(1), 98-102.
https://doi.org/10.1590/S0103-50532005000100015

Lazarević ZŽ, Mišković-Stanković VB, Kačarević-Popović ZM, Dražić DM. The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces. in Journal of the Brazilian Chemical Society. 2005;16(1):98-102.
doi:10.1590/S0103-50532005000100015 .

Lazarević, Zorica Ž., Mišković-Stanković, Vesna B., Kačarević-Popović, Zorica M., Dražić, D. M., "The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces" in Journal of the Brazilian Chemical Society, 16, no. 1 (2005):98-102,
https://doi.org/10.1590/S0103-50532005000100015 . .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Mišković-Stanković, Vesna B.
AU  - Kačarević-Popović, Zorica M.
AU  - Dražić, D. M.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6494
AB  - The electrochemical and transport properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces (anodized, phosphatized and chromatized-phosphatized aluminium) have been investigated during exposure to 3% NaCl solution. From the results obtained from electrochemical impedance spectroscopy (EIS), gravimetric liquid sorption experiment and thermogravimetric analysis (TGA) it can be concluded that electrochemical and transport properties of epoxy coatings on anodized and chromatized-phosphatized aluminium are significantly improved with respect to the same epoxy coatings on aluminium and phosphatized aluminium: higher values of pore resistance and charge-transfer resistance and lower values of coating capacitance and double-layer capacitance, from EIS; smaller values of diffusion coefficient of water through epoxy coating, from sorption measurements and smaller amount of absorbed water inside the coating, from TGA. On the other hand, the somewhat lower thermal stability of these coatings was obtained. (C) 2004 Elsevier Ltd. All rights reserved.
T2  - Corrosion Science
T1  - Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces
VL  - 47
IS  - 3
SP  - 823
EP  - 834
DO  - 10.1016/j.corsci.2004.07.016
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Mišković-Stanković, Vesna B. and Kačarević-Popović, Zorica M. and Dražić, D. M.",
year = "2005",
abstract = "The electrochemical and transport properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces (anodized, phosphatized and chromatized-phosphatized aluminium) have been investigated during exposure to 3% NaCl solution. From the results obtained from electrochemical impedance spectroscopy (EIS), gravimetric liquid sorption experiment and thermogravimetric analysis (TGA) it can be concluded that electrochemical and transport properties of epoxy coatings on anodized and chromatized-phosphatized aluminium are significantly improved with respect to the same epoxy coatings on aluminium and phosphatized aluminium: higher values of pore resistance and charge-transfer resistance and lower values of coating capacitance and double-layer capacitance, from EIS; smaller values of diffusion coefficient of water through epoxy coating, from sorption measurements and smaller amount of absorbed water inside the coating, from TGA. On the other hand, the somewhat lower thermal stability of these coatings was obtained. (C) 2004 Elsevier Ltd. All rights reserved.",
journal = "Corrosion Science",
title = "Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces",
volume = "47",
number = "3",
pages = "823-834",
doi = "10.1016/j.corsci.2004.07.016"
}

Lazarević, Z. Ž., Mišković-Stanković, V. B., Kačarević-Popović, Z. M.,& Dražić, D. M.. (2005). Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces. in Corrosion Science, 47(3), 823-834.
https://doi.org/10.1016/j.corsci.2004.07.016

Lazarević ZŽ, Mišković-Stanković VB, Kačarević-Popović ZM, Dražić DM. Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces. in Corrosion Science. 2005;47(3):823-834.
doi:10.1016/j.corsci.2004.07.016 .

Lazarević, Zorica Ž., Mišković-Stanković, Vesna B., Kačarević-Popović, Zorica M., Dražić, D. M., "Determination of the protective properties of electrodeposited organic epoxy coatings on aluminium and modified aluminium surfaces" in Corrosion Science, 47, no. 3 (2005):823-834,
https://doi.org/10.1016/j.corsci.2004.07.016 . .

TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Likar-Smiljanic, V
AU  - Jovalekić, Čedomir
AU  - Cajkovski, T
AU  - Biljic, R
AU  - Lazarević, Zorica Ž.
AU  - Pavlović, Miodrag B.
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6437
AB  - Nickel and nickel-zinc ferrites are ones of the most abundant members of the soft magnetic materials. In the last few years, the interest in new methods of their preparation increases, because it is well known that the physical and chemical properties of these materials strongly depend on the preparing conditions. Powder samples of soft ferrites of NiFe2O4 and NixZn1-xFC2O4 were synthesized by a classical sintering procedure, planetary mill synthesis, and by a chemical procedure from complex compounds with acetylacetonato-ligands. Average particle sizes were 1 mum, 40 nm and 20x20x4 nm (slabs), respectively. All of the obtained materials were measured ill the frequency range of 7 - 12 GHz for the real and the imaginary part of permittivity and permeability, and the absorption coefficients were calculated. A concurrent analysis of the obtained values showed the influence of the method of synthesis, as well as the particle size on the absorption coefficients in the applied frequency range.
T2  - Materials Science Forum
T1  - Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method
VL  - 453-454
SP  - 405
EP  - 410
DO  - 10.4028/www.scientific.net/MSF.453-454.405
ER  - 

@article{
author = "Nikolić, Aleksandar S. and Likar-Smiljanic, V and Jovalekić, Čedomir and Cajkovski, T and Biljic, R and Lazarević, Zorica Ž. and Pavlović, Miodrag B.",
year = "2004",
abstract = "Nickel and nickel-zinc ferrites are ones of the most abundant members of the soft magnetic materials. In the last few years, the interest in new methods of their preparation increases, because it is well known that the physical and chemical properties of these materials strongly depend on the preparing conditions. Powder samples of soft ferrites of NiFe2O4 and NixZn1-xFC2O4 were synthesized by a classical sintering procedure, planetary mill synthesis, and by a chemical procedure from complex compounds with acetylacetonato-ligands. Average particle sizes were 1 mum, 40 nm and 20x20x4 nm (slabs), respectively. All of the obtained materials were measured ill the frequency range of 7 - 12 GHz for the real and the imaginary part of permittivity and permeability, and the absorption coefficients were calculated. A concurrent analysis of the obtained values showed the influence of the method of synthesis, as well as the particle size on the absorption coefficients in the applied frequency range.",
journal = "Materials Science Forum",
title = "Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method",
volume = "453-454",
pages = "405-410",
doi = "10.4028/www.scientific.net/MSF.453-454.405"
}

Nikolić, A. S., Likar-Smiljanic, V., Jovalekić, Č., Cajkovski, T., Biljic, R., Lazarević, Z. Ž.,& Pavlović, M. B.. (2004). Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method. in Materials Science Forum, 453-454, 405-410.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.405

Nikolić AS, Likar-Smiljanic V, Jovalekić Č, Cajkovski T, Biljic R, Lazarević ZŽ, Pavlović MB. Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method. in Materials Science Forum. 2004;453-454:405-410.
doi:10.4028/www.scientific.net/MSF.453-454.405 .

Nikolić, Aleksandar S., Likar-Smiljanic, V, Jovalekić, Čedomir, Cajkovski, T, Biljic, R, Lazarević, Zorica Ž., Pavlović, Miodrag B., "Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method" in Materials Science Forum, 453-454 (2004):405-410,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.405 . .

TY  - JOUR
AU  - Mišković-Stanković, Vesna B.
AU  - Lazarević, Zorica Ž.
AU  - Kačarević-Popović, Zorica M.
AU  - Dražić, D. M.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2546
AB  - The electrochemical and transport properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces (anodized phosphatized and chromatized-phosphatized aluminium) have been investigated in 3% NaCl solution by electrochemical impedance spectroscopy (EIS) gravimetric liquid sorption experiment and thermogravimetric analysis (TGA). Higher values of pore resistance and charge-transfer resistance and lower values of coating capacitance and double layer capacitance were observed for epoxy coatings on anodized and chromatized and phosphatized aluminium. Smaller values of diffusion coefficient of water through epoxy coating from sorption measurements and smaller amount of absorbed water inside the coatings from TGA were obtained for coatings on anodized and chromatized-phosphatized aluminium. On the other hand the somewhat lower thermal stability of these coatings was obtained.
T2  - Bulletin of Electrochemistry
T1  - Corrosion behaviour of epoxy coatings on modified aluminium surfaces
VL  - 18
IS  - 8
SP  - 343
EP  - 348
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2546
ER  - 

@article{
author = "Mišković-Stanković, Vesna B. and Lazarević, Zorica Ž. and Kačarević-Popović, Zorica M. and Dražić, D. M.",
year = "2002",
abstract = "The electrochemical and transport properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces (anodized phosphatized and chromatized-phosphatized aluminium) have been investigated in 3% NaCl solution by electrochemical impedance spectroscopy (EIS) gravimetric liquid sorption experiment and thermogravimetric analysis (TGA). Higher values of pore resistance and charge-transfer resistance and lower values of coating capacitance and double layer capacitance were observed for epoxy coatings on anodized and chromatized and phosphatized aluminium. Smaller values of diffusion coefficient of water through epoxy coating from sorption measurements and smaller amount of absorbed water inside the coatings from TGA were obtained for coatings on anodized and chromatized-phosphatized aluminium. On the other hand the somewhat lower thermal stability of these coatings was obtained.",
journal = "Bulletin of Electrochemistry",
title = "Corrosion behaviour of epoxy coatings on modified aluminium surfaces",
volume = "18",
number = "8",
pages = "343-348",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2546"
}

Mišković-Stanković, V. B., Lazarević, Z. Ž., Kačarević-Popović, Z. M.,& Dražić, D. M.. (2002). Corrosion behaviour of epoxy coatings on modified aluminium surfaces. in Bulletin of Electrochemistry, 18(8), 343-348.
https://hdl.handle.net/21.15107/rcub_vinar_2546

Mišković-Stanković VB, Lazarević ZŽ, Kačarević-Popović ZM, Dražić DM. Corrosion behaviour of epoxy coatings on modified aluminium surfaces. in Bulletin of Electrochemistry. 2002;18(8):343-348.
https://hdl.handle.net/21.15107/rcub_vinar_2546 .

Mišković-Stanković, Vesna B., Lazarević, Zorica Ž., Kačarević-Popović, Zorica M., Dražić, D. M., "Corrosion behaviour of epoxy coatings on modified aluminium surfaces" in Bulletin of Electrochemistry, 18, no. 8 (2002):343-348,
https://hdl.handle.net/21.15107/rcub_vinar_2546 .

TY  - JOUR
AU  - Mišković-Stanković, Vesna B.
AU  - Lazarević, Zorica Ž.
AU  - Kačarević-Popović, Zorica M.
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2486
AB  - The corrosion behaviour of epoxy coatings electrodeposited on aluminium, as well as on electrochemically and chemically modified aluminium were investigated during exposure to 3 % NaCl. Electrochemical impedance spectroscopy (EIS) and thermogravimetric analysis (TGA) were used for the determination of the protective properties of epoxy coatings on aluminium, anodized aluminium, phosphatized and chromatized-phosphatized aluminium. The protective properties of epoxy coatings on anodized and chromatized-phosphatized aluminium are significantly improved with respect to the same epoxy coatings on aluminium and phosphatized aluminium: higher values of the pore resitance and charge-transfer resistance, lower values of the coating capacitance, double-layer capacitance and relative permittivity (from EIS) smaller amount of absorbed water inside the coating (From TGA). On the other hand, the lower values of the ipdt temperature indicate a lower thermal stability of the epoxy coatings on anodized and chromatized-phosphatized aluminium.
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces
VL  - 66
IS  - 11-12
SP  - 871
EP  - 880
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2486
ER  - 

@article{
author = "Mišković-Stanković, Vesna B. and Lazarević, Zorica Ž. and Kačarević-Popović, Zorica M.",
year = "2001",
abstract = "The corrosion behaviour of epoxy coatings electrodeposited on aluminium, as well as on electrochemically and chemically modified aluminium were investigated during exposure to 3 % NaCl. Electrochemical impedance spectroscopy (EIS) and thermogravimetric analysis (TGA) were used for the determination of the protective properties of epoxy coatings on aluminium, anodized aluminium, phosphatized and chromatized-phosphatized aluminium. The protective properties of epoxy coatings on anodized and chromatized-phosphatized aluminium are significantly improved with respect to the same epoxy coatings on aluminium and phosphatized aluminium: higher values of the pore resitance and charge-transfer resistance, lower values of the coating capacitance, double-layer capacitance and relative permittivity (from EIS) smaller amount of absorbed water inside the coating (From TGA). On the other hand, the lower values of the ipdt temperature indicate a lower thermal stability of the epoxy coatings on anodized and chromatized-phosphatized aluminium.",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces",
volume = "66",
number = "11-12",
pages = "871-880",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2486"
}

Mišković-Stanković, V. B., Lazarević, Z. Ž.,& Kačarević-Popović, Z. M.. (2001). Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces. in Journal of the Serbian Chemical Society, 66(11-12), 871-880.
https://hdl.handle.net/21.15107/rcub_vinar_2486

Mišković-Stanković VB, Lazarević ZŽ, Kačarević-Popović ZM. Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces. in Journal of the Serbian Chemical Society. 2001;66(11-12):871-880.
https://hdl.handle.net/21.15107/rcub_vinar_2486 .

Mišković-Stanković, Vesna B., Lazarević, Zorica Ž., Kačarević-Popović, Zorica M., "Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces" in Journal of the Serbian Chemical Society, 66, no. 11-12 (2001):871-880,
https://hdl.handle.net/21.15107/rcub_vinar_2486 .