TY  - JOUR
AU  - Nikolić, M.V.
AU  - Slankamenac, M.P.
AU  - Nikolić, N.
AU  - Sekulić, D.L.
AU  - Aleksić, O.S.
AU  - Mitrić, M.
AU  - Ivetić, T.
AU  - Pavlović, Vladimir
AU  - Nikolić, P.M.
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3049
AB  - The effects of Zn-doping on the dielectric behavior and electrical properties of bulk alpha-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, with the amount of spinel phase increasing with increasing Zn content. Scanning electron microscopy analysis combined with energy dispersive X-ray spectroscopy showed that the Zn-bearing phase occurred in the form of individual spinel ZnFe2O4 grains in a hematite matrix. DC conductivity was measured in the temperature range 25-225 degrees C (298-498 K). Impedance spectroscopy measurements in the same temperature range were carried out in the frequency range 100Hz to 10 MHz. Increase in the Zn content resulted in increased electrical conductivity and higher values of the dielectric constant. The resistance and capacitance of grains and grain boundaries were analyzed by modeling the experimental results using an equivalent circuit.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn
EP  - 321
IS  - 3
SP  - 307
VL  - 44
DO  - 10.2298/SOS1203307N
ER  - 

@article{
author = "Nikolić, M.V. and Slankamenac, M.P. and Nikolić, N. and Sekulić, D.L. and Aleksić, O.S. and Mitrić, M. and Ivetić, T. and Pavlović, Vladimir and Nikolić, P.M.",
year = "2012",
abstract = "The effects of Zn-doping on the dielectric behavior and electrical properties of bulk alpha-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, with the amount of spinel phase increasing with increasing Zn content. Scanning electron microscopy analysis combined with energy dispersive X-ray spectroscopy showed that the Zn-bearing phase occurred in the form of individual spinel ZnFe2O4 grains in a hematite matrix. DC conductivity was measured in the temperature range 25-225 degrees C (298-498 K). Impedance spectroscopy measurements in the same temperature range were carried out in the frequency range 100Hz to 10 MHz. Increase in the Zn content resulted in increased electrical conductivity and higher values of the dielectric constant. The resistance and capacitance of grains and grain boundaries were analyzed by modeling the experimental results using an equivalent circuit.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn",
pages = "321-307",
number = "3",
volume = "44",
doi = "10.2298/SOS1203307N"
}

Nikolić, M.V., Slankamenac, M.P., Nikolić, N., Sekulić, D.L., Aleksić, O.S., Mitrić, M., Ivetić, T., Pavlović, V.,& Nikolić, P.M.. (2012). Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(3), 307-321.
https://doi.org/10.2298/SOS1203307N

Nikolić M, Slankamenac M, Nikolić N, Sekulić D, Aleksić O, Mitrić M, Ivetić T, Pavlović V, Nikolić P. Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn. in Science of Sintering. 2012;44(3):307-321.
doi:10.2298/SOS1203307N .

Nikolić, M.V., Slankamenac, M.P., Nikolić, N., Sekulić, D.L., Aleksić, O.S., Mitrić, M., Ivetić, T., Pavlović, Vladimir, Nikolić, P.M., "Study of Dielectric Behavior and Electrical Properties of Hematite alpha-Fe2O3 Doped with Zn" in Science of Sintering, 44, no. 3 (2012):307-321,
https://doi.org/10.2298/SOS1203307N . .

TY  - JOUR
AU  - Slankamenac, M.
AU  - Ivetić, T.
AU  - Nikolić, M.V.
AU  - Ivetić, N.
AU  - Zivanov, M.
AU  - Pavlović, Vladimir
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2399
AB  - Impedance/admittance and dielectric spectroscopy were used to investigate the effect of temperature on the electrical response of liquid-phase sintered Zn2SnO4-SnO2 ceramics. The measurements were performed over a wide frequency range (100 Hz to 10 MHz) at different temperatures. The real and the imaginary part of the complex impedance traced semicircles in the complex plane. The resistance and the capacitance of bulk and grain-boundary regions were determined by modeling the experimental results using several equivalent circuits taking into account bulk deep trap states. Admittance complex diagrams were also determined in order to understand better the conduction mechanisms occurring in the polycrystalline Zn2SnO4-SnO2 system.
PB  - Springer, New York
T2  - Journal of Electronic Materials
T1  - Impedance Response and Dielectric Relaxation in Liquid-Phase Sintered Zn2SnO4-SnO2 Ceramics
EP  - 455
IS  - 4
SP  - 447
VL  - 39
DO  - 10.1007/s11664-010-1118-3
ER  - 

@article{
author = "Slankamenac, M. and Ivetić, T. and Nikolić, M.V. and Ivetić, N. and Zivanov, M. and Pavlović, Vladimir",
year = "2010",
abstract = "Impedance/admittance and dielectric spectroscopy were used to investigate the effect of temperature on the electrical response of liquid-phase sintered Zn2SnO4-SnO2 ceramics. The measurements were performed over a wide frequency range (100 Hz to 10 MHz) at different temperatures. The real and the imaginary part of the complex impedance traced semicircles in the complex plane. The resistance and the capacitance of bulk and grain-boundary regions were determined by modeling the experimental results using several equivalent circuits taking into account bulk deep trap states. Admittance complex diagrams were also determined in order to understand better the conduction mechanisms occurring in the polycrystalline Zn2SnO4-SnO2 system.",
publisher = "Springer, New York",
journal = "Journal of Electronic Materials",
title = "Impedance Response and Dielectric Relaxation in Liquid-Phase Sintered Zn2SnO4-SnO2 Ceramics",
pages = "455-447",
number = "4",
volume = "39",
doi = "10.1007/s11664-010-1118-3"
}

Slankamenac, M., Ivetić, T., Nikolić, M.V., Ivetić, N., Zivanov, M.,& Pavlović, V.. (2010). Impedance Response and Dielectric Relaxation in Liquid-Phase Sintered Zn2SnO4-SnO2 Ceramics. in Journal of Electronic Materials
Springer, New York., 39(4), 447-455.
https://doi.org/10.1007/s11664-010-1118-3

Slankamenac M, Ivetić T, Nikolić M, Ivetić N, Zivanov M, Pavlović V. Impedance Response and Dielectric Relaxation in Liquid-Phase Sintered Zn2SnO4-SnO2 Ceramics. in Journal of Electronic Materials. 2010;39(4):447-455.
doi:10.1007/s11664-010-1118-3 .

Slankamenac, M., Ivetić, T., Nikolić, M.V., Ivetić, N., Zivanov, M., Pavlović, Vladimir, "Impedance Response and Dielectric Relaxation in Liquid-Phase Sintered Zn2SnO4-SnO2 Ceramics" in Journal of Electronic Materials, 39, no. 4 (2010):447-455,
https://doi.org/10.1007/s11664-010-1118-3 . .

TY  - JOUR
AU  - Ivetić, T.
AU  - Vuković, Z.
AU  - Nikolić, M.V.
AU  - Pavlović, Vladimir
AU  - Nikolić, J.R.
AU  - Minić, Dragica M.
AU  - Ristić, M.M.
PY  - 2008
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1805
AB  - Powder mixtures of zinc oxide and tin oxide in the molar ratio, ZnO:SnO2 = 2: 1, were mechanically activated in a planetary ball mill in the time intervals of 0-160 min. The adsorption-desorption isotherms, specific surface area, pore volume and pore size distribution spectra of mechanically activated powder mixtures were established by N-2 adsorption at 77 K. Microstructure analysis was performed using scanning electron microscopy (SEM) and digital pattern recognition (DPR) microstructure quantity analysis. The phase composition of the mixed powders was determined by Xray analysis. Mechanochemical activation of the ZnO-SnO2 system resulted in fine grinding of the starting particles and generation of contacts between them, mass transfer at contacts zones and formation of Zn2SnO4 spinel, which was observed after 40 min of activation.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Morphology investigation of mechanically activated ZnO-SnO2 system
EP  - 643
IS  - 3
SP  - 639
VL  - 34
DO  - 10.1016/j.ceramint.2007.01.003
ER  - 

@article{
author = "Ivetić, T. and Vuković, Z. and Nikolić, M.V. and Pavlović, Vladimir and Nikolić, J.R. and Minić, Dragica M. and Ristić, M.M.",
year = "2008",
abstract = "Powder mixtures of zinc oxide and tin oxide in the molar ratio, ZnO:SnO2 = 2: 1, were mechanically activated in a planetary ball mill in the time intervals of 0-160 min. The adsorption-desorption isotherms, specific surface area, pore volume and pore size distribution spectra of mechanically activated powder mixtures were established by N-2 adsorption at 77 K. Microstructure analysis was performed using scanning electron microscopy (SEM) and digital pattern recognition (DPR) microstructure quantity analysis. The phase composition of the mixed powders was determined by Xray analysis. Mechanochemical activation of the ZnO-SnO2 system resulted in fine grinding of the starting particles and generation of contacts between them, mass transfer at contacts zones and formation of Zn2SnO4 spinel, which was observed after 40 min of activation.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Morphology investigation of mechanically activated ZnO-SnO2 system",
pages = "643-639",
number = "3",
volume = "34",
doi = "10.1016/j.ceramint.2007.01.003"
}

Ivetić, T., Vuković, Z., Nikolić, M.V., Pavlović, V., Nikolić, J.R., Minić, D. M.,& Ristić, M.M.. (2008). Morphology investigation of mechanically activated ZnO-SnO2 system. in Ceramics International
Elsevier Sci Ltd, Oxford., 34(3), 639-643.
https://doi.org/10.1016/j.ceramint.2007.01.003

Ivetić T, Vuković Z, Nikolić M, Pavlović V, Nikolić J, Minić DM, Ristić M. Morphology investigation of mechanically activated ZnO-SnO2 system. in Ceramics International. 2008;34(3):639-643.
doi:10.1016/j.ceramint.2007.01.003 .

Ivetić, T., Vuković, Z., Nikolić, M.V., Pavlović, Vladimir, Nikolić, J.R., Minić, Dragica M., Ristić, M.M., "Morphology investigation of mechanically activated ZnO-SnO2 system" in Ceramics International, 34, no. 3 (2008):639-643,
https://doi.org/10.1016/j.ceramint.2007.01.003 . .