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  - 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 . .