TY  - JOUR
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Stojanović, J.
AU  - Obradović, Nina
AU  - Kostović, M.
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/667
AB  - The effect of vibratory mill induced mechanical activation on the change of the particle size, crystallinity and the phase transformations of the minerals present in the activated material, was studied with the purpose of decreasing of the sintering temperature of talc (Mg3Si4O10(OH)2) as raw material which is the basic component of the steatite ceramics. The aims of the conducted investigation were, also, increasing of the reactivity of the comminuted raw material and establishing of the optimal activation period. The properties of the activated talc induced by mechanical force were expressed in form of the grain inertia change which was measured by means of automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change of the mill-material system is recorded on them. The effect of dry grinding on the structure, particle size and shape of talc was studied by means of XRD, DTA and SEM/EDS methods. Activation of talc produced an increase of the starting surface area value progressively from 4.5 m2/g up to a maximum of 108.5 m2/g achieved at 30 min. A subsequent decrease of rate of surface area change and the rate of size reduction were observed following the prolonged grinding. Talc activated in vibratory mill for optimal 30 min showed properties which positively influence the decrease of sintering temperature and the increase of the sintering rate of steatite ceramics. [Projekat Ministarstva nauke Republike Srbije, br. 172057, br. 45008 i br. 33007]
PB  - Belgrade : Interenational Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Mechanical activation as sintering pre-treatment of talc for steatite ceramics
SP  - 247
EP  - 258
VL  - 46
IS  - 2
DO  - 10.2298/SOS1402247T
UR  - https://hdl.handle.net/21.15107/rcub_dais_667
ER  - 

@article{
author = "Terzić, Anja and Andrić, Ljubiša and Stojanović, J. and Obradović, Nina and Kostović, M.",
year = "2014",
abstract = "The effect of vibratory mill induced mechanical activation on the change of the particle size, crystallinity and the phase transformations of the minerals present in the activated material, was studied with the purpose of decreasing of the sintering temperature of talc (Mg3Si4O10(OH)2) as raw material which is the basic component of the steatite ceramics. The aims of the conducted investigation were, also, increasing of the reactivity of the comminuted raw material and establishing of the optimal activation period. The properties of the activated talc induced by mechanical force were expressed in form of the grain inertia change which was measured by means of automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change of the mill-material system is recorded on them. The effect of dry grinding on the structure, particle size and shape of talc was studied by means of XRD, DTA and SEM/EDS methods. Activation of talc produced an increase of the starting surface area value progressively from 4.5 m2/g up to a maximum of 108.5 m2/g achieved at 30 min. A subsequent decrease of rate of surface area change and the rate of size reduction were observed following the prolonged grinding. Talc activated in vibratory mill for optimal 30 min showed properties which positively influence the decrease of sintering temperature and the increase of the sintering rate of steatite ceramics. [Projekat Ministarstva nauke Republike Srbije, br. 172057, br. 45008 i br. 33007]",
publisher = "Belgrade : Interenational Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Mechanical activation as sintering pre-treatment of talc for steatite ceramics",
pages = "247-258",
volume = "46",
number = "2",
doi = "10.2298/SOS1402247T",
url = "https://hdl.handle.net/21.15107/rcub_dais_667"
}

Terzić, A., Andrić, L., Stojanović, J., Obradović, N.,& Kostović, M.. (2014). Mechanical activation as sintering pre-treatment of talc for steatite ceramics. in Science of Sintering
Belgrade : Interenational Institute for the Science of Sintering., 46(2), 247-258.
https://doi.org/10.2298/SOS1402247T
https://hdl.handle.net/21.15107/rcub_dais_667

Terzić A, Andrić L, Stojanović J, Obradović N, Kostović M. Mechanical activation as sintering pre-treatment of talc for steatite ceramics. in Science of Sintering. 2014;46(2):247-258.
doi:10.2298/SOS1402247T
https://hdl.handle.net/21.15107/rcub_dais_667 .

Terzić, Anja, Andrić, Ljubiša, Stojanović, J., Obradović, Nina, Kostović, M., "Mechanical activation as sintering pre-treatment of talc for steatite ceramics" in Science of Sintering, 46, no. 2 (2014):247-258,
https://doi.org/10.2298/SOS1402247T .,
https://hdl.handle.net/21.15107/rcub_dais_667 .

TY  - JOUR
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Stojanović, J.
AU  - Miličić, Lj.
AU  - Radojević, Zagorka
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/193
AB  - Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Synthesis and sintering of high-temperature composites based on mechanically activated fly ash
SP  - 135
EP  - 146
VL  - 44
IS  - 2
DO  - 10.2298/SOS1202135T
UR  - https://hdl.handle.net/21.15107/rcub_dais_193
ER  - 

@article{
author = "Terzić, Anja and Pavlović, Ljubica and Obradović, Nina and Pavlović, Vladimir B. and Stojanović, J. and Miličić, Lj. and Radojević, Zagorka and Ristić, Momčilo M.",
year = "2012",
abstract = "Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash",
pages = "135-146",
volume = "44",
number = "2",
doi = "10.2298/SOS1202135T",
url = "https://hdl.handle.net/21.15107/rcub_dais_193"
}

Terzić, A., Pavlović, L., Obradović, N., Pavlović, V. B., Stojanović, J., Miličić, Lj., Radojević, Z.,& Ristić, M. M.. (2012). Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 44(2), 135-146.
https://doi.org/10.2298/SOS1202135T
https://hdl.handle.net/21.15107/rcub_dais_193

Terzić A, Pavlović L, Obradović N, Pavlović VB, Stojanović J, Miličić L, Radojević Z, Ristić MM. Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering. 2012;44(2):135-146.
doi:10.2298/SOS1202135T
https://hdl.handle.net/21.15107/rcub_dais_193 .

Terzić, Anja, Pavlović, Ljubica, Obradović, Nina, Pavlović, Vladimir B., Stojanović, J., Miličić, Lj., Radojević, Zagorka, Ristić, Momčilo M., "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash" in Science of Sintering, 44, no. 2 (2012):135-146,
https://doi.org/10.2298/SOS1202135T .,
https://hdl.handle.net/21.15107/rcub_dais_193 .