Obradović, Nina

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orcid::0000-0002-7993-293X
  • Obradović, Nina (8)
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Author's Bibliography

Synthesis of Barium-zinc-titanate Ceramics

Obradović, Nina; Nikolić, Maria Vesna; Nikolić, Nenad; Filipović, Suzana Z; Mitrić, Miodrag; Pavlović, Vladimir B; Nikolić, Pantelija M.; Đorđević, Antonije R; Ristic, Momcilo M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)

TY  - JOUR
AU  - Obradović, Nina
AU  - Nikolić, Maria Vesna
AU  - Nikolić, Nenad
AU  - Filipović, Suzana Z
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B
AU  - Nikolić, Pantelija M.
AU  - Đorđević, Antonije R
AU  - Ristic, Momcilo M.
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/604
AB  - Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 degrees C for 2h with a heating rate of 10 degrees C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the phase composition. The microstructure of sintered samples was examined by scanning electron microscopy. The photoacoustic phase and amplitude spectra of sintered samples were measured as a function of the laser beam modulating frequency using a transmission detection configuration. Fitting of experimental data enabled determination of photoacoustic properties including thermal diffusivity. Based on the results obtained correlation between thermal diffusivity and experimental conditions, as well the samples microstructure characteristics, was discussed.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Synthesis of Barium-zinc-titanate Ceramics
EP  - 71
IS  - 1
SP  - 65
VL  - 44
DO  - 10.2298/SOS1201065O
ER  - 
@article{
author = "Obradović, Nina and Nikolić, Maria Vesna and Nikolić, Nenad and Filipović, Suzana Z and Mitrić, Miodrag and Pavlović, Vladimir B and Nikolić, Pantelija M. and Đorđević, Antonije R and Ristic, Momcilo M.",
year = "2012",
abstract = "Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 degrees C for 2h with a heating rate of 10 degrees C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the phase composition. The microstructure of sintered samples was examined by scanning electron microscopy. The photoacoustic phase and amplitude spectra of sintered samples were measured as a function of the laser beam modulating frequency using a transmission detection configuration. Fitting of experimental data enabled determination of photoacoustic properties including thermal diffusivity. Based on the results obtained correlation between thermal diffusivity and experimental conditions, as well the samples microstructure characteristics, was discussed.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Synthesis of Barium-zinc-titanate Ceramics",
pages = "71-65",
number = "1",
volume = "44",
doi = "10.2298/SOS1201065O"
}
Obradović, N., Nikolić, M. V., Nikolić, N., Filipović, S. Z., Mitrić, M., Pavlović, V. B., Nikolić, P. M., Đorđević, A. R.,& Ristic, M. M.. (2012). Synthesis of Barium-zinc-titanate Ceramics. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(1), 65-71.
https://doi.org/10.2298/SOS1201065O
Obradović N, Nikolić MV, Nikolić N, Filipović SZ, Mitrić M, Pavlović VB, Nikolić PM, Đorđević AR, Ristic MM. Synthesis of Barium-zinc-titanate Ceramics. in Science of Sintering. 2012;44(1):65-71.
doi:10.2298/SOS1201065O .
Obradović, Nina, Nikolić, Maria Vesna, Nikolić, Nenad, Filipović, Suzana Z, Mitrić, Miodrag, Pavlović, Vladimir B, Nikolić, Pantelija M., Đorđević, Antonije R, Ristic, Momcilo M., "Synthesis of Barium-zinc-titanate Ceramics" in Science of Sintering, 44, no. 1 (2012):65-71,
https://doi.org/10.2298/SOS1201065O . .
3
2
5

Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive

Obradović, Nina; Đorđević, Nataša G; Filipović, Suzana Z; Nikolić, Nenad; Kosanović, Darko; Mitrić, Miodrag; Marković, Smilja; Pavlović, Vladimir B

(Elsevier, Amsterdam, 2012)

TY  - JOUR
AU  - Obradović, Nina
AU  - Đorđević, Nataša G
AU  - Filipović, Suzana Z
AU  - Nikolić, Nenad
AU  - Kosanović, Darko
AU  - Mitrić, Miodrag
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/523
AB  - Due to its outstanding electrical characteristics, such as the low temperature expansion coefficient, low dielectric constant and good mechanical properties, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a very attractive high-temperature ceramic material. In order to accelerate the process of sintering, 2.50 mass% Bi2O3 has been added to the starting mixtures. Liquid phase sintering caused by the presence of bismuth-oxide lowers the temperature of cordierite formation. The mechanical activation of the starting mixtures (0-56 min in vibro-mill) additionally lowers sintering temperatures. The sintering process was performed at 1200, 1300, 1350 and 1400 degrees C, for 2 h. The particle size analysis (PSA) was employed in order to determine the changes in the particle size of the mechanically treated powders. The phase composition of the starting powders and sintered materials was analyzed by the X-ray diffraction method. Furthermore, scanning electron microscopy (SEM) was used in the analysis of the powder morphology.
PB  - Elsevier, Amsterdam
T2  - Powder Technology
T1  - Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive
EP  - 161
SP  - 157
VL  - 218
DO  - 10.1016/j.powtec.2011.12.012
ER  - 
@article{
author = "Obradović, Nina and Đorđević, Nataša G and Filipović, Suzana Z and Nikolić, Nenad and Kosanović, Darko and Mitrić, Miodrag and Marković, Smilja and Pavlović, Vladimir B",
year = "2012",
abstract = "Due to its outstanding electrical characteristics, such as the low temperature expansion coefficient, low dielectric constant and good mechanical properties, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a very attractive high-temperature ceramic material. In order to accelerate the process of sintering, 2.50 mass% Bi2O3 has been added to the starting mixtures. Liquid phase sintering caused by the presence of bismuth-oxide lowers the temperature of cordierite formation. The mechanical activation of the starting mixtures (0-56 min in vibro-mill) additionally lowers sintering temperatures. The sintering process was performed at 1200, 1300, 1350 and 1400 degrees C, for 2 h. The particle size analysis (PSA) was employed in order to determine the changes in the particle size of the mechanically treated powders. The phase composition of the starting powders and sintered materials was analyzed by the X-ray diffraction method. Furthermore, scanning electron microscopy (SEM) was used in the analysis of the powder morphology.",
publisher = "Elsevier, Amsterdam",
journal = "Powder Technology",
title = "Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive",
pages = "161-157",
volume = "218",
doi = "10.1016/j.powtec.2011.12.012"
}
Obradović, N., Đorđević, N. G., Filipović, S. Z., Nikolić, N., Kosanović, D., Mitrić, M., Marković, S.,& Pavlović, V. B.. (2012). Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive. in Powder Technology
Elsevier, Amsterdam., 218, 157-161.
https://doi.org/10.1016/j.powtec.2011.12.012
Obradović N, Đorđević NG, Filipović SZ, Nikolić N, Kosanović D, Mitrić M, Marković S, Pavlović VB. Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive. in Powder Technology. 2012;218:157-161.
doi:10.1016/j.powtec.2011.12.012 .
Obradović, Nina, Đorđević, Nataša G, Filipović, Suzana Z, Nikolić, Nenad, Kosanović, Darko, Mitrić, Miodrag, Marković, Smilja, Pavlović, Vladimir B, "Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive" in Powder Technology, 218 (2012):157-161,
https://doi.org/10.1016/j.powtec.2011.12.012 . .
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44

Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology

Zlatkov, B.S.; Nikolić, Maria Vesna; Zeljković, V.; Obradović, Nina; Pavlović, Vladimir B; Aleksić, Obrad

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2011)

TY  - JOUR
AU  - Zlatkov, B.S.
AU  - Nikolić, Maria Vesna
AU  - Zeljković, V.
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B
AU  - Aleksić, Obrad
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/502
AB  - The powder injection moulding (PIM) technology is lately becoming more and more significant due to complex design possibilities and good repeatability. This technology requires optimization of all steps starting with material and binder, injection, debinding and sintering parameters. Sintering is one of the key links in this technology. The powder injection moulding process is specific as during feedstock injection powder particles mixed into the binder do not come into mechanical contact. Shrinkage during sintering of PIM samples is high. In this work we have analyzed and modeled the sintering process of isotropic PIM samples of Sr-hexaferrite. The Master Sintering Curve (MSC) principle has been applied to analyze sintering of two types of PIM Sr-hexaferrite samples with completely removed binder and only the extraction step of the debinding procedure (thermal debinding proceeding simultaneously with sintering). Influence of the heating rate on resulting sample microstructures has also been analyzed. Influence of the sintering time and temperature was analyzed using three different phenomenological equations.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology
EP  - 20
IS  - 1
SP  - 9
VL  - 43
DO  - 10.2298/SOS1101009Z
ER  - 
@article{
author = "Zlatkov, B.S. and Nikolić, Maria Vesna and Zeljković, V. and Obradović, Nina and Pavlović, Vladimir B and Aleksić, Obrad",
year = "2011",
abstract = "The powder injection moulding (PIM) technology is lately becoming more and more significant due to complex design possibilities and good repeatability. This technology requires optimization of all steps starting with material and binder, injection, debinding and sintering parameters. Sintering is one of the key links in this technology. The powder injection moulding process is specific as during feedstock injection powder particles mixed into the binder do not come into mechanical contact. Shrinkage during sintering of PIM samples is high. In this work we have analyzed and modeled the sintering process of isotropic PIM samples of Sr-hexaferrite. The Master Sintering Curve (MSC) principle has been applied to analyze sintering of two types of PIM Sr-hexaferrite samples with completely removed binder and only the extraction step of the debinding procedure (thermal debinding proceeding simultaneously with sintering). Influence of the heating rate on resulting sample microstructures has also been analyzed. Influence of the sintering time and temperature was analyzed using three different phenomenological equations.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology",
pages = "20-9",
number = "1",
volume = "43",
doi = "10.2298/SOS1101009Z"
}
Zlatkov, B.S., Nikolić, M. V., Zeljković, V., Obradović, N., Pavlović, V. B.,& Aleksić, O.. (2011). Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 43(1), 9-20.
https://doi.org/10.2298/SOS1101009Z
Zlatkov B, Nikolić MV, Zeljković V, Obradović N, Pavlović VB, Aleksić O. Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology. in Science of Sintering. 2011;43(1):9-20.
doi:10.2298/SOS1101009Z .
Zlatkov, B.S., Nikolić, Maria Vesna, Zeljković, V., Obradović, Nina, Pavlović, Vladimir B, Aleksić, Obrad, "Analysis and Modeling of Sintering of Sr-hexaferrite Produced by PIM Technology" in Science of Sintering, 43, no. 1 (2011):9-20,
https://doi.org/10.2298/SOS1101009Z . .
4
5
7

Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics

Obradović, Nina; Mitrić, Miodrag; Nikolić, Maria Vesna; Minic, Dragica; Mitrović, Nebojša S.; Ristic, Momcilo M.

(Elsevier Science Sa, Lausanne, 2009)

TY  - JOUR
AU  - Obradović, Nina
AU  - Mitrić, Miodrag
AU  - Nikolić, Maria Vesna
AU  - Minic, Dragica
AU  - Mitrović, Nebojša S.
AU  - Ristic, Momcilo M.
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/366
AB  - Starting mixtures of ZnO, TiO(2) and MgO (0, 1.25 and 2.5 wt.% MgO) powders were mechanically activated for 15 min in a planetary ball mill. The powders obtained were sintered non-isothermally to temperatures between 800 and 1100 degrees C and then held at those temperatures for 120 min. Analysis of the influence of MgO addition on the synthesis of zinc-titanate ceramics showed that its addition increased slightly the temperature at which the reaction process started, accelerated the reaction and resulted in higher sample densities. These results were correlated with the results of structural characterization using X-ray powder diffraction method and SEM analysis. Also, the results of electric resistivity, capacitance and loss tangent of the sintered samples were obtained.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics
EP  - 277
IS  - 1-2
SP  - 272
VL  - 471
DO  - 10.1016/j.jallcom.2008.03.090
ER  - 
@article{
author = "Obradović, Nina and Mitrić, Miodrag and Nikolić, Maria Vesna and Minic, Dragica and Mitrović, Nebojša S. and Ristic, Momcilo M.",
year = "2009",
abstract = "Starting mixtures of ZnO, TiO(2) and MgO (0, 1.25 and 2.5 wt.% MgO) powders were mechanically activated for 15 min in a planetary ball mill. The powders obtained were sintered non-isothermally to temperatures between 800 and 1100 degrees C and then held at those temperatures for 120 min. Analysis of the influence of MgO addition on the synthesis of zinc-titanate ceramics showed that its addition increased slightly the temperature at which the reaction process started, accelerated the reaction and resulted in higher sample densities. These results were correlated with the results of structural characterization using X-ray powder diffraction method and SEM analysis. Also, the results of electric resistivity, capacitance and loss tangent of the sintered samples were obtained.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics",
pages = "277-272",
number = "1-2",
volume = "471",
doi = "10.1016/j.jallcom.2008.03.090"
}
Obradović, N., Mitrić, M., Nikolić, M. V., Minic, D., Mitrović, N. S.,& Ristic, M. M.. (2009). Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 471(1-2), 272-277.
https://doi.org/10.1016/j.jallcom.2008.03.090
Obradović N, Mitrić M, Nikolić MV, Minic D, Mitrović NS, Ristic MM. Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics. in Journal of Alloys and Compounds. 2009;471(1-2):272-277.
doi:10.1016/j.jallcom.2008.03.090 .
Obradović, Nina, Mitrić, Miodrag, Nikolić, Maria Vesna, Minic, Dragica, Mitrović, Nebojša S., Ristic, Momcilo M., "Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics" in Journal of Alloys and Compounds, 471, no. 1-2 (2009):272-277,
https://doi.org/10.1016/j.jallcom.2008.03.090 . .
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14
17

Structural analysis of Zn2TiO4 doped with mgo

Nikolić, Maria Vesna; Obradović, Nina; Paraskevopoulos, K.M.; Zorba, T.T.; Savić, Slavica M.; Ristic, M.M.

(Springer New York LLC, 2009)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Obradović, Nina
AU  - Paraskevopoulos, K.M.
AU  - Zorba, T.T.
AU  - Savić, Slavica M.
AU  - Ristic, M.M.
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/334
AB  - The starting mixtures of ZnO, TiO2, and MgO (0, 1.25, and 2.5 wt.%) powders are mechanically activated in a high-energy planetary mill for 15 min and then sintered between 800 and 1100 degrees C for 2 h. The influence of MgO addition on the structure of the samples obtained is analyzed with X-ray diffraction and infrared reflection spectroscopy. Room-temperature far-infrared reflectivity spectra of the samples doped with MgO (0, 1.25, and 2.5 wt.%) and sintered at 1100 degrees C in the frequency range between 100 and 1200 cm(-1) are measured and analyzed. Optical parameters are determined for seven oscillators belonging to the spinel structure using the four-parameter model of coupled oscillators. Born effective charges are calculated from the transversal/longitudinal splitting.
PB  - Springer New York LLC
T2  - Powder Metallurgy and Metal Ceramics
T1  - Structural analysis of Zn2TiO4 doped with mgo
EP  - 717
IS  - 11-12
SP  - 712
VL  - 48
DO  - 10.1007/s11106-010-9190-z
ER  - 
@article{
author = "Nikolić, Maria Vesna and Obradović, Nina and Paraskevopoulos, K.M. and Zorba, T.T. and Savić, Slavica M. and Ristic, M.M.",
year = "2009",
abstract = "The starting mixtures of ZnO, TiO2, and MgO (0, 1.25, and 2.5 wt.%) powders are mechanically activated in a high-energy planetary mill for 15 min and then sintered between 800 and 1100 degrees C for 2 h. The influence of MgO addition on the structure of the samples obtained is analyzed with X-ray diffraction and infrared reflection spectroscopy. Room-temperature far-infrared reflectivity spectra of the samples doped with MgO (0, 1.25, and 2.5 wt.%) and sintered at 1100 degrees C in the frequency range between 100 and 1200 cm(-1) are measured and analyzed. Optical parameters are determined for seven oscillators belonging to the spinel structure using the four-parameter model of coupled oscillators. Born effective charges are calculated from the transversal/longitudinal splitting.",
publisher = "Springer New York LLC",
journal = "Powder Metallurgy and Metal Ceramics",
title = "Structural analysis of Zn2TiO4 doped with mgo",
pages = "717-712",
number = "11-12",
volume = "48",
doi = "10.1007/s11106-010-9190-z"
}
Nikolić, M. V., Obradović, N., Paraskevopoulos, K.M., Zorba, T.T., Savić, S. M.,& Ristic, M.M.. (2009). Structural analysis of Zn2TiO4 doped with mgo. in Powder Metallurgy and Metal Ceramics
Springer New York LLC., 48(11-12), 712-717.
https://doi.org/10.1007/s11106-010-9190-z
Nikolić MV, Obradović N, Paraskevopoulos K, Zorba T, Savić SM, Ristic M. Structural analysis of Zn2TiO4 doped with mgo. in Powder Metallurgy and Metal Ceramics. 2009;48(11-12):712-717.
doi:10.1007/s11106-010-9190-z .
Nikolić, Maria Vesna, Obradović, Nina, Paraskevopoulos, K.M., Zorba, T.T., Savić, Slavica M., Ristic, M.M., "Structural analysis of Zn2TiO4 doped with mgo" in Powder Metallurgy and Metal Ceramics, 48, no. 11-12 (2009):712-717,
https://doi.org/10.1007/s11106-010-9190-z . .
2
2
2

Far infrared reflectance of sintered Zn2TiO4

Nikolić, Maria Vesna; Obradović, Nina; Paraskevopoulos, K.M.; Zorba, T.T.; Savić, Slavica M.; Ristic, M. M.

(Springer, New York, 2008)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Obradović, Nina
AU  - Paraskevopoulos, K.M.
AU  - Zorba, T.T.
AU  - Savić, Slavica M.
AU  - Ristic, M. M.
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/249
AB  - Zinc-titanate ceramics were obtained by initial mechanical activation in a high-energy planetary mill for 15 min followed by sintering at temperatures 900-1100 degrees C for 2 h. Room temperature far infrared reflectivity spectra for all samples were measured in the range 1001200 cm(-1). The same ionic oscillators were present in the measured spectra, but their intensities increased with the sintering temperature in correlation with the increase in sample density and microstructure changes. Optical parameters were determined for seven oscillators belonging to the spinel structure using the four-parameter model of coupled oscillators. Born effective charges were calculated from the transversal/longitudinal splitting.
PB  - Springer, New York
T2  - Journal of Materials Science
T1  - Far infrared reflectance of sintered Zn2TiO4
EP  - 5568
IS  - 16
SP  - 5564
VL  - 43
DO  - 10.1007/s10853-008-2819-3
ER  - 
@article{
author = "Nikolić, Maria Vesna and Obradović, Nina and Paraskevopoulos, K.M. and Zorba, T.T. and Savić, Slavica M. and Ristic, M. M.",
year = "2008",
abstract = "Zinc-titanate ceramics were obtained by initial mechanical activation in a high-energy planetary mill for 15 min followed by sintering at temperatures 900-1100 degrees C for 2 h. Room temperature far infrared reflectivity spectra for all samples were measured in the range 1001200 cm(-1). The same ionic oscillators were present in the measured spectra, but their intensities increased with the sintering temperature in correlation with the increase in sample density and microstructure changes. Optical parameters were determined for seven oscillators belonging to the spinel structure using the four-parameter model of coupled oscillators. Born effective charges were calculated from the transversal/longitudinal splitting.",
publisher = "Springer, New York",
journal = "Journal of Materials Science",
title = "Far infrared reflectance of sintered Zn2TiO4",
pages = "5568-5564",
number = "16",
volume = "43",
doi = "10.1007/s10853-008-2819-3"
}
Nikolić, M. V., Obradović, N., Paraskevopoulos, K.M., Zorba, T.T., Savić, S. M.,& Ristic, M. M.. (2008). Far infrared reflectance of sintered Zn2TiO4. in Journal of Materials Science
Springer, New York., 43(16), 5564-5568.
https://doi.org/10.1007/s10853-008-2819-3
Nikolić MV, Obradović N, Paraskevopoulos K, Zorba T, Savić SM, Ristic MM. Far infrared reflectance of sintered Zn2TiO4. in Journal of Materials Science. 2008;43(16):5564-5568.
doi:10.1007/s10853-008-2819-3 .
Nikolić, Maria Vesna, Obradović, Nina, Paraskevopoulos, K.M., Zorba, T.T., Savić, Slavica M., Ristic, M. M., "Far infrared reflectance of sintered Zn2TiO4" in Journal of Materials Science, 43, no. 16 (2008):5564-5568,
https://doi.org/10.1007/s10853-008-2819-3 . .
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22

Analysis of isothermal sintering of zinc-titanate doped with MgO

Obradović, Nina; Stevanović, S.; Mitrić, Miodrag; Nikolić, Maria Vesna; Ristic, M. M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2007)

TY  - JOUR
AU  - Obradović, Nina
AU  - Stevanović, S.
AU  - Mitrić, Miodrag
AU  - Nikolić, Maria Vesna
AU  - Ristic, M. M.
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/222
AB  - The aim of this work was analysis of isothermal sintering of zinc titanate ceramics doped with MgO obtained by mechanical activation. Mixtures of ZnO, TiO2 and MgO (0, 1.25 and 2.5%) were mechanically activated 15 minutes in a planetary ball mill. The powders obtained were pressed under different pressures and the results were fitted with a phenomenological compacting equation. Isothermal sintering was performed in air for 120 minutes at four different temperatures. Structural characterization of ZhO-TiO2-MgO system after milling was performed at room temperature using XRPD measurements. DTA measurements showed different activation energies for pure and doped ZnO-TiO2 systems. Thus addition of MgO stabilizes the crystal structure of zinc titanate.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Analysis of isothermal sintering of zinc-titanate doped with MgO
EP  - 248
IS  - 3
SP  - 241
VL  - 39
DO  - 10.2298/SOS0703241O
ER  - 
@article{
author = "Obradović, Nina and Stevanović, S. and Mitrić, Miodrag and Nikolić, Maria Vesna and Ristic, M. M.",
year = "2007",
abstract = "The aim of this work was analysis of isothermal sintering of zinc titanate ceramics doped with MgO obtained by mechanical activation. Mixtures of ZnO, TiO2 and MgO (0, 1.25 and 2.5%) were mechanically activated 15 minutes in a planetary ball mill. The powders obtained were pressed under different pressures and the results were fitted with a phenomenological compacting equation. Isothermal sintering was performed in air for 120 minutes at four different temperatures. Structural characterization of ZhO-TiO2-MgO system after milling was performed at room temperature using XRPD measurements. DTA measurements showed different activation energies for pure and doped ZnO-TiO2 systems. Thus addition of MgO stabilizes the crystal structure of zinc titanate.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Analysis of isothermal sintering of zinc-titanate doped with MgO",
pages = "248-241",
number = "3",
volume = "39",
doi = "10.2298/SOS0703241O"
}
Obradović, N., Stevanović, S., Mitrić, M., Nikolić, M. V.,& Ristic, M. M.. (2007). Analysis of isothermal sintering of zinc-titanate doped with MgO. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 39(3), 241-248.
https://doi.org/10.2298/SOS0703241O
Obradović N, Stevanović S, Mitrić M, Nikolić MV, Ristic MM. Analysis of isothermal sintering of zinc-titanate doped with MgO. in Science of Sintering. 2007;39(3):241-248.
doi:10.2298/SOS0703241O .
Obradović, Nina, Stevanović, S., Mitrić, Miodrag, Nikolić, Maria Vesna, Ristic, M. M., "Analysis of isothermal sintering of zinc-titanate doped with MgO" in Science of Sintering, 39, no. 3 (2007):241-248,
https://doi.org/10.2298/SOS0703241O . .
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Analysis of isothermal sintering of zinc-titanate doped with MgO

Obradović, Nina; Stevanović, Suzana; Mitrić, Miodrag; Nikolić, Maria Vesna; Ristić, Momčilo M.

(Čačak : Technical Faculty, 2007)

TY  - CONF
AU  - Obradović, Nina
AU  - Stevanović, Suzana
AU  - Mitrić, Miodrag
AU  - Nikolić, Maria Vesna
AU  - Ristić, Momčilo M.
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1642
AB  - The aim of this work was analysis of isothermal sintering of zinc titanate ceramics doped with MgO obtained by mechanical activation. Mixtures of ZnO, Ti02 and MgO (0, 1.25 and 2.5%) were mechanically activated 15 minutes in a planetary ball mill. The powders obtained were pressed under different pressures and the results were fitted with a phenomenological compacting equation. Isothermal sintering was performed in air for 120 minutes at four different temperatures. Structural characterization of ZnO-TiOrMgb system' after milling and sintering was performed at room temperature using XRPD measurements. DTA measurements showed different activation energies for pure and doped ZnO-Ti02 systems. The main conclusions are that doped zinc titanate samples achieve higher densities after sintering and that addition of MgO stabilizes the crystal structure of zinc titanate.
PB  - Čačak : Technical Faculty
C3  - VII Scientific Meeting Physics and Technology of Materials - FITEM '07
T1  - Analysis of isothermal sintering of zinc-titanate doped with MgO
EP  - 27
SP  - 27
UR  - https://hdl.handle.net/21.15107/rcub_dais_632
ER  - 
@conference{
author = "Obradović, Nina and Stevanović, Suzana and Mitrić, Miodrag and Nikolić, Maria Vesna and Ristić, Momčilo M.",
year = "2007",
abstract = "The aim of this work was analysis of isothermal sintering of zinc titanate ceramics doped with MgO obtained by mechanical activation. Mixtures of ZnO, Ti02 and MgO (0, 1.25 and 2.5%) were mechanically activated 15 minutes in a planetary ball mill. The powders obtained were pressed under different pressures and the results were fitted with a phenomenological compacting equation. Isothermal sintering was performed in air for 120 minutes at four different temperatures. Structural characterization of ZnO-TiOrMgb system' after milling and sintering was performed at room temperature using XRPD measurements. DTA measurements showed different activation energies for pure and doped ZnO-Ti02 systems. The main conclusions are that doped zinc titanate samples achieve higher densities after sintering and that addition of MgO stabilizes the crystal structure of zinc titanate.",
publisher = "Čačak : Technical Faculty",
journal = "VII Scientific Meeting Physics and Technology of Materials - FITEM '07",
title = "Analysis of isothermal sintering of zinc-titanate doped with MgO",
pages = "27-27",
url = "https://hdl.handle.net/21.15107/rcub_dais_632"
}
Obradović, N., Stevanović, S., Mitrić, M., Nikolić, M. V.,& Ristić, M. M.. (2007). Analysis of isothermal sintering of zinc-titanate doped with MgO. in VII Scientific Meeting Physics and Technology of Materials - FITEM '07
Čačak : Technical Faculty., 27-27.
https://hdl.handle.net/21.15107/rcub_dais_632
Obradović N, Stevanović S, Mitrić M, Nikolić MV, Ristić MM. Analysis of isothermal sintering of zinc-titanate doped with MgO. in VII Scientific Meeting Physics and Technology of Materials - FITEM '07. 2007;:27-27.
https://hdl.handle.net/21.15107/rcub_dais_632 .
Obradović, Nina, Stevanović, Suzana, Mitrić, Miodrag, Nikolić, Maria Vesna, Ristić, Momčilo M., "Analysis of isothermal sintering of zinc-titanate doped with MgO" in VII Scientific Meeting Physics and Technology of Materials - FITEM '07 (2007):27-27,
https://hdl.handle.net/21.15107/rcub_dais_632 .