TY  - JOUR
AU  - Obradović, Nina
AU  - Đorđević, Nataša
AU  - Filipović, Suzana
AU  - Nikolić, N.
AU  - Kosanović, Darko
AU  - Mitrić, Miodrag
AU  - Marković, Smilja
AU  - Pavlović, Vladimir
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/202
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
UR  - conv_610
ER  - 

@article{
author = "Obradović, Nina and Đorđević, Nataša and Filipović, Suzana and Nikolić, N. and Kosanović, Darko and Mitrić, Miodrag and Marković, Smilja and Pavlović, Vladimir",
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",
url = "conv_610"
}

Obradović, N., Đorđević, N., Filipović, S., Nikolić, N., Kosanović, D., Mitrić, M., Marković, S.,& Pavlović, V.. (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
conv_610

Obradović N, Đorđević N, Filipović S, Nikolić N, Kosanović D, Mitrić M, Marković S, Pavlović V. 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
conv_610 .

Obradović, Nina, Đorđević, Nataša, Filipović, Suzana, Nikolić, N., Kosanović, Darko, Mitrić, Miodrag, Marković, Smilja, Pavlović, Vladimir, "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 .,
conv_610 .

TY  - JOUR
AU  - Marinković, Z.V.
AU  - Nikolić, N.
AU  - Stojanović, Jovica
AU  - Pavlović, Ljubica
AU  - Ristić, M.M.
PY  - 2001
UR  - https://ritnms.itnms.ac.rs/handle/123456789/32
AB  - Mechanical activation of simple and complex powder systems is very often used as a method for modification of physico-chemical properties in technologies for obtaining advanced materials. The present work reports on investigation of cordierite formation from starting powders mixture of basic magnesium carbonate (BMC) and kaolinite. Starting powders mixture were mechanically activated in a high energy vibromill. The grinding times were 10, 20 and 40 minutes. Amorphization process of starting compounds in mixtures and phase transformations during supplementary thermal treatment were examined by X-ray powder diffraction (XRPD). Differential thermal analysis (DTA) is a convenient method for investigating chemical thermodynamics and formal kinetic descriptions of physico-chemical processes. Formal kinetic analysis of cordierite formation in non-isothermal conditions were excersited using kinetic theory in stationary point according to Kissinger and Ozawa method. Set of DTA measurements with different heating rate of 10, 15, 20 and 30 K/min were used for determining activation energy of cordierite formation from the starting amorphous material.
PB  - Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - The influence of mechanical activation of starting components on kinetics of cordierite formation
EP  - 75
IS  - 3-4
SP  - 67
VL  - 37
UR  - conv_321
ER  - 

@article{
author = "Marinković, Z.V. and Nikolić, N. and Stojanović, Jovica and Pavlović, Ljubica and Ristić, M.M.",
year = "2001",
abstract = "Mechanical activation of simple and complex powder systems is very often used as a method for modification of physico-chemical properties in technologies for obtaining advanced materials. The present work reports on investigation of cordierite formation from starting powders mixture of basic magnesium carbonate (BMC) and kaolinite. Starting powders mixture were mechanically activated in a high energy vibromill. The grinding times were 10, 20 and 40 minutes. Amorphization process of starting compounds in mixtures and phase transformations during supplementary thermal treatment were examined by X-ray powder diffraction (XRPD). Differential thermal analysis (DTA) is a convenient method for investigating chemical thermodynamics and formal kinetic descriptions of physico-chemical processes. Formal kinetic analysis of cordierite formation in non-isothermal conditions were excersited using kinetic theory in stationary point according to Kissinger and Ozawa method. Set of DTA measurements with different heating rate of 10, 15, 20 and 30 K/min were used for determining activation energy of cordierite formation from the starting amorphous material.",
publisher = "Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "The influence of mechanical activation of starting components on kinetics of cordierite formation",
pages = "75-67",
number = "3-4",
volume = "37",
url = "conv_321"
}

Marinković, Z.V., Nikolić, N., Stojanović, J., Pavlović, L.,& Ristić, M.M.. (2001). The influence of mechanical activation of starting components on kinetics of cordierite formation. in Journal of Mining and Metallurgy B: Metallurgy
Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd., 37(3-4), 67-75.
conv_321

Marinković Z, Nikolić N, Stojanović J, Pavlović L, Ristić M. The influence of mechanical activation of starting components on kinetics of cordierite formation. in Journal of Mining and Metallurgy B: Metallurgy. 2001;37(3-4):67-75.
conv_321 .

Marinković, Z.V., Nikolić, N., Stojanović, Jovica, Pavlović, Ljubica, Ristić, M.M., "The influence of mechanical activation of starting components on kinetics of cordierite formation" in Journal of Mining and Metallurgy B: Metallurgy, 37, no. 3-4 (2001):67-75,
conv_321 .