TY  - JOUR
AU  - Obradović, Nina
AU  - Đorđević, Nataša
AU  - Filipović, Suzana
AU  - Marković, Smilja
AU  - Kosanović, Darko
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/15995
AB  - Since cordierite, 2MgO·2Al2O3·5SiO2 (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 °C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissinger’s equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 °C, comparing to the literature data.
PB  - Springer
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA
SP  - 667
EP  - 673
VL  - 124
IS  - 2
DO  - 10.1007/s10973-015-5132-9
UR  - https://hdl.handle.net/21.15107/rcub_dais_15995
ER  - 

@article{
author = "Obradović, Nina and Đorđević, Nataša and Filipović, Suzana and Marković, Smilja and Kosanović, Darko and Mitrić, Miodrag and Pavlović, Vladimir B.",
year = "2016",
abstract = "Since cordierite, 2MgO·2Al2O3·5SiO2 (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 °C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissinger’s equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 °C, comparing to the literature data.",
publisher = "Springer",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA",
pages = "667-673",
volume = "124",
number = "2",
doi = "10.1007/s10973-015-5132-9",
url = "https://hdl.handle.net/21.15107/rcub_dais_15995"
}

Obradović, N., Đorđević, N., Filipović, S., Marković, S., Kosanović, D., Mitrić, M.,& Pavlović, V. B.. (2016). Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA. in Journal of Thermal Analysis and Calorimetry
Springer., 124(2), 667-673.
https://doi.org/10.1007/s10973-015-5132-9
https://hdl.handle.net/21.15107/rcub_dais_15995

Obradović N, Đorđević N, Filipović S, Marković S, Kosanović D, Mitrić M, Pavlović VB. Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA. in Journal of Thermal Analysis and Calorimetry. 2016;124(2):667-673.
doi:10.1007/s10973-015-5132-9
https://hdl.handle.net/21.15107/rcub_dais_15995 .

Obradović, Nina, Đorđević, Nataša, Filipović, Suzana, Marković, Smilja, Kosanović, Darko, Mitrić, Miodrag, Pavlović, Vladimir B., "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA" in Journal of Thermal Analysis and Calorimetry, 124, no. 2 (2016):667-673,
https://doi.org/10.1007/s10973-015-5132-9 .,
https://hdl.handle.net/21.15107/rcub_dais_15995 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Maričić, Aleksa
AU  - Mitrović, Nebojša
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/200
AB  - Development of materials with desirable properties essentially depends on realization of interdependence: natural science ⇔ technical sciences. Taking this into account, in order to develop of new advanced materials it is essential to determine principles that characterize this interdependency. Therefore, in this article the principles of fundamental research and the importance of obtained results are considered and implemented in the field of technical realizations.
AB  - Dobijanje materijala zadatih svojstava uslovljen je suštinski ostvarivanjem međuzavisnosti: PRIRODNE NAUKE ⇔ TEHNIČKE NAUKE. S obzirom na to, kada se radi o dobijanju novih materijala, neophodno je utvrditi zakonitosti koje karakterišu ovu međuzavisnost. Saglasno ovome u ovoj publikaciji razmatrani su principi fundamentalnih istraživanja i značaj dobijenih rezultata za primenu u oblasti tehničkih realizacija.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Interdependence of fundamental and applied research in material science
SP  - 119
EP  - 126
VL  - 43
IS  - 2
DO  - 10.2298/SOS1102119K
UR  - https://hdl.handle.net/21.15107/rcub_dais_200
ER  - 

@article{
author = "Kosanović, Darko and Maričić, Aleksa and Mitrović, Nebojša and Ristić, Momčilo M.",
year = "2011",
abstract = "Development of materials with desirable properties essentially depends on realization of interdependence: natural science ⇔ technical sciences. Taking this into account, in order to develop of new advanced materials it is essential to determine principles that characterize this interdependency. Therefore, in this article the principles of fundamental research and the importance of obtained results are considered and implemented in the field of technical realizations., Dobijanje materijala zadatih svojstava uslovljen je suštinski ostvarivanjem međuzavisnosti: PRIRODNE NAUKE ⇔ TEHNIČKE NAUKE. S obzirom na to, kada se radi o dobijanju novih materijala, neophodno je utvrditi zakonitosti koje karakterišu ovu međuzavisnost. Saglasno ovome u ovoj publikaciji razmatrani su principi fundamentalnih istraživanja i značaj dobijenih rezultata za primenu u oblasti tehničkih realizacija.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Interdependence of fundamental and applied research in material science",
pages = "119-126",
volume = "43",
number = "2",
doi = "10.2298/SOS1102119K",
url = "https://hdl.handle.net/21.15107/rcub_dais_200"
}

Kosanović, D., Maričić, A., Mitrović, N.,& Ristić, M. M.. (2011). Interdependence of fundamental and applied research in material science. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 43(2), 119-126.
https://doi.org/10.2298/SOS1102119K
https://hdl.handle.net/21.15107/rcub_dais_200

Kosanović D, Maričić A, Mitrović N, Ristić MM. Interdependence of fundamental and applied research in material science. in Science of Sintering. 2011;43(2):119-126.
doi:10.2298/SOS1102119K
https://hdl.handle.net/21.15107/rcub_dais_200 .

Kosanović, Darko, Maričić, Aleksa, Mitrović, Nebojša, Ristić, Momčilo M., "Interdependence of fundamental and applied research in material science" in Science of Sintering, 43, no. 2 (2011):119-126,
https://doi.org/10.2298/SOS1102119K .,
https://hdl.handle.net/21.15107/rcub_dais_200 .

TY  - JOUR
AU  - Labus, Nebojša
AU  - Stevanović, Suzana
AU  - Ristić, Momčilo M.
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3588
AB  - Zinc oxide and titanium dioxide powders mixed in an equimolar ratio are mechanically activated in a planetary ball mill and sintered under nonisothermal and isothermal conditions. Nonisothermal sintering is studied using dilatometry and SEM. The activation energy of sintering is determined using the method based on different heating rates and Dorn's method as well. The phase composition of the isothermally sintered samples is determined using x-ray powder diffraction. © 2008 Springer Science+Business Media, Inc.
PB  - Springer
T2  - Powder Metallurgy and Metal Ceramics
T1  - Sintering of mechanically activated Zno-TiO 2 powders
SP  - 40
EP  - 46
VL  - 47
IS  - 1-2
DO  - 10.1007/s11106-008-0007-2
UR  - https://hdl.handle.net/21.15107/rcub_dais_3588
ER  - 

@article{
author = "Labus, Nebojša and Stevanović, Suzana and Ristić, Momčilo M.",
year = "2008",
abstract = "Zinc oxide and titanium dioxide powders mixed in an equimolar ratio are mechanically activated in a planetary ball mill and sintered under nonisothermal and isothermal conditions. Nonisothermal sintering is studied using dilatometry and SEM. The activation energy of sintering is determined using the method based on different heating rates and Dorn's method as well. The phase composition of the isothermally sintered samples is determined using x-ray powder diffraction. © 2008 Springer Science+Business Media, Inc.",
publisher = "Springer",
journal = "Powder Metallurgy and Metal Ceramics",
title = "Sintering of mechanically activated Zno-TiO 2 powders",
pages = "40-46",
volume = "47",
number = "1-2",
doi = "10.1007/s11106-008-0007-2",
url = "https://hdl.handle.net/21.15107/rcub_dais_3588"
}

Labus, N., Stevanović, S.,& Ristić, M. M.. (2008). Sintering of mechanically activated Zno-TiO 2 powders. in Powder Metallurgy and Metal Ceramics
Springer., 47(1-2), 40-46.
https://doi.org/10.1007/s11106-008-0007-2
https://hdl.handle.net/21.15107/rcub_dais_3588

Labus N, Stevanović S, Ristić MM. Sintering of mechanically activated Zno-TiO 2 powders. in Powder Metallurgy and Metal Ceramics. 2008;47(1-2):40-46.
doi:10.1007/s11106-008-0007-2
https://hdl.handle.net/21.15107/rcub_dais_3588 .

Labus, Nebojša, Stevanović, Suzana, Ristić, Momčilo M., "Sintering of mechanically activated Zno-TiO 2 powders" in Powder Metallurgy and Metal Ceramics, 47, no. 1-2 (2008):40-46,
https://doi.org/10.1007/s11106-008-0007-2 .,
https://hdl.handle.net/21.15107/rcub_dais_3588 .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Obradović, Nina
AU  - Paraskevopoulos, Konstantinos M.
AU  - Zorba, Triantafyllia T.
AU  - Savić, Slavica M.
AU  - Ristić, Momčilo M.
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3576
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°C for 2 h. Room temperature far infrared reflectivity spectra for all samples were measured in the range 100-1200 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. © 2008 Springer Science+Business Media, LLC.
PB  - Springer Science+Business Media
T2  - Journal of Materials Science
T1  - Far infrared reflectance of sintered Zn2TiO4
SP  - 5564
EP  - 5568
VL  - 43
IS  - 16
DO  - 10.1007/s10853-008-2819-3
UR  - https://hdl.handle.net/21.15107/rcub_dais_3576
ER  - 

@article{
author = "Nikolić, Maria Vesna and Obradović, Nina and Paraskevopoulos, Konstantinos M. and Zorba, Triantafyllia T. and Savić, Slavica M. and Ristić, Momčilo 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°C for 2 h. Room temperature far infrared reflectivity spectra for all samples were measured in the range 100-1200 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. © 2008 Springer Science+Business Media, LLC.",
publisher = "Springer Science+Business Media",
journal = "Journal of Materials Science",
title = "Far infrared reflectance of sintered Zn2TiO4",
pages = "5564-5568",
volume = "43",
number = "16",
doi = "10.1007/s10853-008-2819-3",
url = "https://hdl.handle.net/21.15107/rcub_dais_3576"
}

Nikolić, M. V., Obradović, N., Paraskevopoulos, K. M., Zorba, T. T., Savić, S. M.,& Ristić, M. M.. (2008). Far infrared reflectance of sintered Zn2TiO4. in Journal of Materials Science
Springer Science+Business Media., 43(16), 5564-5568.
https://doi.org/10.1007/s10853-008-2819-3
https://hdl.handle.net/21.15107/rcub_dais_3576

Nikolić MV, Obradović N, Paraskevopoulos KM, Zorba TT, Savić SM, Ristić MM. Far infrared reflectance of sintered Zn2TiO4. in Journal of Materials Science. 2008;43(16):5564-5568.
doi:10.1007/s10853-008-2819-3
https://hdl.handle.net/21.15107/rcub_dais_3576 .

Nikolić, Maria Vesna, Obradović, Nina, Paraskevopoulos, Konstantinos M., Zorba, Triantafyllia T., Savić, Slavica M., Ristić, Momčilo 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 .,
https://hdl.handle.net/21.15107/rcub_dais_3576 .