TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Ilić, Svetlana
AU  - Barudžija, Tanja
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Kokunešoski, Maja
AU  - Matović, Branko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10852
AB  - In this paper, the effects of the addition of silicon nitride seeds on the phase composition, particle size, and shape of silicon nitride powders obtained by carbothermal reduction-nitridation were studied. Environmentally friendly natural raw material, diatomaceous earth, was used as a Si precursor. Three different carbon sources were used: activated carbon, carbonized sucrose, and carbon cryogel as reducing agents in the molar ratio C/SiO2 = 5. To obtain better-quality Si3N4 powder, the commercial α-Si3N4 powder was added into starting mixtures as seeds in four different quantities. The X-ray diffraction, specific surface area, infrared spectroscopy with Fourier transform, and scanning electron microscopy were employed to characterize the obtained powders. Sucrose as a carbon source enables a major reduction of SiO2 and the onset of β-Si3N4 crystallization at a lower temperature (1350 °C) as well as the complete absence of diatomaceous earth relics. It indicates that the carbothermal reduction-nitridation takes place faster in contrast to the other two carbon sources.
T2  - Journal of the Australian Ceramic Society
T1  - Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon
VL  - 59
SP  - 823
EP  - 835
DO  - 10.1007/s41779-023-00876-w
ER  - 

@article{
author = "Šaponjić, Aleksandra and Ilić, Svetlana and Barudžija, Tanja and Radosavljević-Mihajlović, Ana S. and Kokunešoski, Maja and Matović, Branko",
year = "2023",
abstract = "In this paper, the effects of the addition of silicon nitride seeds on the phase composition, particle size, and shape of silicon nitride powders obtained by carbothermal reduction-nitridation were studied. Environmentally friendly natural raw material, diatomaceous earth, was used as a Si precursor. Three different carbon sources were used: activated carbon, carbonized sucrose, and carbon cryogel as reducing agents in the molar ratio C/SiO2 = 5. To obtain better-quality Si3N4 powder, the commercial α-Si3N4 powder was added into starting mixtures as seeds in four different quantities. The X-ray diffraction, specific surface area, infrared spectroscopy with Fourier transform, and scanning electron microscopy were employed to characterize the obtained powders. Sucrose as a carbon source enables a major reduction of SiO2 and the onset of β-Si3N4 crystallization at a lower temperature (1350 °C) as well as the complete absence of diatomaceous earth relics. It indicates that the carbothermal reduction-nitridation takes place faster in contrast to the other two carbon sources.",
journal = "Journal of the Australian Ceramic Society",
title = "Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon",
volume = "59",
pages = "823-835",
doi = "10.1007/s41779-023-00876-w"
}

Šaponjić, A., Ilić, S., Barudžija, T., Radosavljević-Mihajlović, A. S., Kokunešoski, M.,& Matović, B.. (2023). Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon. in Journal of the Australian Ceramic Society, 59, 823-835.
https://doi.org/10.1007/s41779-023-00876-w

Šaponjić A, Ilić S, Barudžija T, Radosavljević-Mihajlović AS, Kokunešoski M, Matović B. Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon. in Journal of the Australian Ceramic Society. 2023;59:823-835.
doi:10.1007/s41779-023-00876-w .

Šaponjić, Aleksandra, Ilić, Svetlana, Barudžija, Tanja, Radosavljević-Mihajlović, Ana S., Kokunešoski, Maja, Matović, Branko, "Seeded silicon nitride powders obtained by carbothermal reduction—nitridation of diatomite and various sources of carbon" in Journal of the Australian Ceramic Society, 59 (2023):823-835,
https://doi.org/10.1007/s41779-023-00876-w . .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Janaćković, Đorđe
AU  - Kićević, Dušan
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11104
AB  - Effect of methyl methacrylate (MMA) as a binder and heating treatment were investigated to improve green alumina compacts machinability. Properties of green compacts and their corresponding sintered samples prepared with and without MMA were compared. Investigation of green and sintered properties was performed on samples compacted at applied pressures up to 150 MPa. After pressing, samples with MMA were thermally treated at 115oC. The intention was to enhance the polymerization of MMA at a temperature a little higher than the glass transition temperature (Tg = 103oC) of poly (methyl methacrylate). Green compacts with MMA had higher green density values than those without MMA. Sintered samples with MMA had lower values of sintered density and higher values of total porosity; after sintering, relative linear shrinkage was around 15 % for the whole range of applied pressures. The possibility of easily machining the green compacts with MMA produces great possibilities for application in many fields
T2  - Science of Sintering
T1  - The effect of acrylate on the properties and machinability of alumina ceramics
VL  - 55
IS  - 1
SP  - 103
EP  - 113
DO  - 10.2298/SOS2301103K
ER  - 

@article{
author = "Kokunešoski, Maja and Janaćković, Đorđe and Kićević, Dušan and Ilić, Svetlana and Šaponjić, Aleksandra",
year = "2023",
abstract = "Effect of methyl methacrylate (MMA) as a binder and heating treatment were investigated to improve green alumina compacts machinability. Properties of green compacts and their corresponding sintered samples prepared with and without MMA were compared. Investigation of green and sintered properties was performed on samples compacted at applied pressures up to 150 MPa. After pressing, samples with MMA were thermally treated at 115oC. The intention was to enhance the polymerization of MMA at a temperature a little higher than the glass transition temperature (Tg = 103oC) of poly (methyl methacrylate). Green compacts with MMA had higher green density values than those without MMA. Sintered samples with MMA had lower values of sintered density and higher values of total porosity; after sintering, relative linear shrinkage was around 15 % for the whole range of applied pressures. The possibility of easily machining the green compacts with MMA produces great possibilities for application in many fields",
journal = "Science of Sintering",
title = "The effect of acrylate on the properties and machinability of alumina ceramics",
volume = "55",
number = "1",
pages = "103-113",
doi = "10.2298/SOS2301103K"
}

Kokunešoski, M., Janaćković, Đ., Kićević, D., Ilić, S.,& Šaponjić, A.. (2023). The effect of acrylate on the properties and machinability of alumina ceramics. in Science of Sintering, 55(1), 103-113.
https://doi.org/10.2298/SOS2301103K

Kokunešoski M, Janaćković Đ, Kićević D, Ilić S, Šaponjić A. The effect of acrylate on the properties and machinability of alumina ceramics. in Science of Sintering. 2023;55(1):103-113.
doi:10.2298/SOS2301103K .

Kokunešoski, Maja, Janaćković, Đorđe, Kićević, Dušan, Ilić, Svetlana, Šaponjić, Aleksandra, "The effect of acrylate on the properties and machinability of alumina ceramics" in Science of Sintering, 55, no. 1 (2023):103-113,
https://doi.org/10.2298/SOS2301103K . .

TY  - JOUR
AU  - Mahnicka-Goremikina, Ludmila
AU  - Svinka, Ruta
AU  - Svinka, Visvaldis
AU  - Goremikins, Vadims
AU  - Ilić, Svetlana
AU  - Grase, Liga
AU  - Juhnevica, Inna
AU  - Rundans, Maris
AU  - Eiduks, Toms Valdemars
AU  - Pludons, Arturs
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11364
AB  - Mullite and mullite–alumina ceramics materials with dominance of the mullite phase are used in different areas of technology and materials science. Porous mullite ceramics materials can be used simultaneously as refractory heat insulators and also as materials for constructional elements. The purpose of this work was to investigate the WO3 nanoparticle influence on the evolution of the aluminum tungstate and zircon crystalline phases in mullite ceramics due to stabilization effects caused by different microsize ZrO2 and WO3 . The use of nano-WO3 prevented the dissociation of zircon in the ceramic samples with magnesia-stabilized zirconia (MSZ), increased porosity by approximately 60 ± 1%, increased the intensity of the aluminum tungstate phase, decreased bulk density by approximately 1.32 ± 0.01 g/cm3 , and increased thermal shock resistance by ensuring a loss of less than 5% of the elastic modulus after 10 cycles of thermal shock.
T2  - Materials
T1  - Porous Mullite Ceramic Modification with Nano-WO3
VL  - 16
IS  - 13
SP  - 4631
DO  - 10.3390/ma16134631
ER  - 

@article{
author = "Mahnicka-Goremikina, Ludmila and Svinka, Ruta and Svinka, Visvaldis and Goremikins, Vadims and Ilić, Svetlana and Grase, Liga and Juhnevica, Inna and Rundans, Maris and Eiduks, Toms Valdemars and Pludons, Arturs",
year = "2023",
abstract = "Mullite and mullite–alumina ceramics materials with dominance of the mullite phase are used in different areas of technology and materials science. Porous mullite ceramics materials can be used simultaneously as refractory heat insulators and also as materials for constructional elements. The purpose of this work was to investigate the WO3 nanoparticle influence on the evolution of the aluminum tungstate and zircon crystalline phases in mullite ceramics due to stabilization effects caused by different microsize ZrO2 and WO3 . The use of nano-WO3 prevented the dissociation of zircon in the ceramic samples with magnesia-stabilized zirconia (MSZ), increased porosity by approximately 60 ± 1%, increased the intensity of the aluminum tungstate phase, decreased bulk density by approximately 1.32 ± 0.01 g/cm3 , and increased thermal shock resistance by ensuring a loss of less than 5% of the elastic modulus after 10 cycles of thermal shock.",
journal = "Materials",
title = "Porous Mullite Ceramic Modification with Nano-WO3",
volume = "16",
number = "13",
pages = "4631",
doi = "10.3390/ma16134631"
}

Mahnicka-Goremikina, L., Svinka, R., Svinka, V., Goremikins, V., Ilić, S., Grase, L., Juhnevica, I., Rundans, M., Eiduks, T. V.,& Pludons, A.. (2023). Porous Mullite Ceramic Modification with Nano-WO3. in Materials, 16(13), 4631.
https://doi.org/10.3390/ma16134631

Mahnicka-Goremikina L, Svinka R, Svinka V, Goremikins V, Ilić S, Grase L, Juhnevica I, Rundans M, Eiduks TV, Pludons A. Porous Mullite Ceramic Modification with Nano-WO3. in Materials. 2023;16(13):4631.
doi:10.3390/ma16134631 .

Mahnicka-Goremikina, Ludmila, Svinka, Ruta, Svinka, Visvaldis, Goremikins, Vadims, Ilić, Svetlana, Grase, Liga, Juhnevica, Inna, Rundans, Maris, Eiduks, Toms Valdemars, Pludons, Arturs, "Porous Mullite Ceramic Modification with Nano-WO3" in Materials, 16, no. 13 (2023):4631,
https://doi.org/10.3390/ma16134631 . .

TY  - CONF
AU  - Egelja, Adela
AU  - Savić, Andrija
AU  - Šaponjić, Aleksandra
AU  - Kokunešoski, Maja
AU  - Ilić, Svetlana
AU  - Vuksanović, Marija M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10662
AB  - In present study FEAL-LDH@SIO2 were Used for removing phosphate from aqueous solutions. FeAl-LDH with molar ratio Fe/Al = 3/1 was synthesized by co- precipitation from aqueous solutions in the present of SIO2 PARTICLES. Silica obtained from rice husks were used as a substrate for the deposition of LDH particles. The prepared material was characterized by scanning electron microscope (FE-SEM), X-ray diffraction (XRD), N2 adsorption/desorption isotherms (BET method) and Fourier transform infrared spectroscopy (FTIR). XRD analysis showed that Fe-Al had formed LDH structure. SEM analysis revealed deposition of LDH particles on SIO2 SUBSTRATE. The adsorption characteristics for phosphate uptake of the obtained material were performed. Adsorption experiments were carried out as a function of LDHs dosage with three different mass ratios of LDH/silica = 1/1, 2/1, and 3/1 and different phosphate concentration AT INITIAL PH 4. Phosphate concentrations were determined using spectrophotometer. The results showed that the maximum sorption capacities of phosphates calculated based on Langmuir equation was 52.68 mg g-1.
PB  - Banja Luka : University PIM
C3  - XI International conference on social and technological development - STED 2022 : book of abstracts, Trebinje, June 2-5, 2022
T1  - Application of FeAl-LDH@SiO2 for Phosphate Removal from Water
SP  - 91
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10662
ER  - 

@conference{
author = "Egelja, Adela and Savić, Andrija and Šaponjić, Aleksandra and Kokunešoski, Maja and Ilić, Svetlana and Vuksanović, Marija M.",
year = "2022",
abstract = "In present study FEAL-LDH@SIO2 were Used for removing phosphate from aqueous solutions. FeAl-LDH with molar ratio Fe/Al = 3/1 was synthesized by co- precipitation from aqueous solutions in the present of SIO2 PARTICLES. Silica obtained from rice husks were used as a substrate for the deposition of LDH particles. The prepared material was characterized by scanning electron microscope (FE-SEM), X-ray diffraction (XRD), N2 adsorption/desorption isotherms (BET method) and Fourier transform infrared spectroscopy (FTIR). XRD analysis showed that Fe-Al had formed LDH structure. SEM analysis revealed deposition of LDH particles on SIO2 SUBSTRATE. The adsorption characteristics for phosphate uptake of the obtained material were performed. Adsorption experiments were carried out as a function of LDHs dosage with three different mass ratios of LDH/silica = 1/1, 2/1, and 3/1 and different phosphate concentration AT INITIAL PH 4. Phosphate concentrations were determined using spectrophotometer. The results showed that the maximum sorption capacities of phosphates calculated based on Langmuir equation was 52.68 mg g-1.",
publisher = "Banja Luka : University PIM",
journal = "XI International conference on social and technological development - STED 2022 : book of abstracts, Trebinje, June 2-5, 2022",
title = "Application of FeAl-LDH@SiO2 for Phosphate Removal from Water",
pages = "91",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10662"
}

Egelja, A., Savić, A., Šaponjić, A., Kokunešoski, M., Ilić, S.,& Vuksanović, M. M.. (2022). Application of FeAl-LDH@SiO2 for Phosphate Removal from Water. in XI International conference on social and technological development - STED 2022 : book of abstracts, Trebinje, June 2-5, 2022
Banja Luka : University PIM., 91.
https://hdl.handle.net/21.15107/rcub_vinar_10662

Egelja A, Savić A, Šaponjić A, Kokunešoski M, Ilić S, Vuksanović MM. Application of FeAl-LDH@SiO2 for Phosphate Removal from Water. in XI International conference on social and technological development - STED 2022 : book of abstracts, Trebinje, June 2-5, 2022. 2022;:91.
https://hdl.handle.net/21.15107/rcub_vinar_10662 .

Egelja, Adela, Savić, Andrija, Šaponjić, Aleksandra, Kokunešoski, Maja, Ilić, Svetlana, Vuksanović, Marija M., "Application of FeAl-LDH@SiO2 for Phosphate Removal from Water" in XI International conference on social and technological development - STED 2022 : book of abstracts, Trebinje, June 2-5, 2022 (2022):91,
https://hdl.handle.net/21.15107/rcub_vinar_10662 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Pošarac-Marković, Milica B.
AU  - Katnić, Đurica
AU  - Baščarević, Z.
AU  - Ilić, Svetlana
AU  - Grce, Ana
AU  - Šaponjić, Aleksandra
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12993
AB  - The present work represents hydrogel as a composite based on sodium alginate and mesoporous SBA-15. The hydrogel was obtained by modifying mesoporous SBA-15 by a microencapsulation method of the SBA-15 in the sodium alginate matrix. The solution of CaCl2 provided a gelation complex of sodium alginate/SBA-15 in a rigid gel-like structure. The sodium alginate/SBA-15 hydrogels beads of about 3 mm diameter were prepared. Composite material was characterized by using powder X- ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. This composite material may have potential application in removal of metal ions – pollutants from aqueous solutions.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2
T1  - Modifying Mesoporous SBA-15 by a Microencapsulation Method in the Matrix of Sodium Alginate
SP  - 363
EP  - 366
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12993
ER  - 

@conference{
author = "Kokunešoski, Maja and Pošarac-Marković, Milica B. and Katnić, Đurica and Baščarević, Z. and Ilić, Svetlana and Grce, Ana and Šaponjić, Aleksandra",
year = "2022",
abstract = "The present work represents hydrogel as a composite based on sodium alginate and mesoporous SBA-15. The hydrogel was obtained by modifying mesoporous SBA-15 by a microencapsulation method of the SBA-15 in the sodium alginate matrix. The solution of CaCl2 provided a gelation complex of sodium alginate/SBA-15 in a rigid gel-like structure. The sodium alginate/SBA-15 hydrogels beads of about 3 mm diameter were prepared. Composite material was characterized by using powder X- ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. This composite material may have potential application in removal of metal ions – pollutants from aqueous solutions.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2",
title = "Modifying Mesoporous SBA-15 by a Microencapsulation Method in the Matrix of Sodium Alginate",
pages = "363-366",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12993"
}

Kokunešoski, M., Pošarac-Marković, M. B., Katnić, Đ., Baščarević, Z., Ilić, S., Grce, A.,& Šaponjić, A.. (2022). Modifying Mesoporous SBA-15 by a Microencapsulation Method in the Matrix of Sodium Alginate. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2
Belgrade : Society of Physical Chemists of Serbia., 363-366.
https://hdl.handle.net/21.15107/rcub_vinar_12993

Kokunešoski M, Pošarac-Marković MB, Katnić Đ, Baščarević Z, Ilić S, Grce A, Šaponjić A. Modifying Mesoporous SBA-15 by a Microencapsulation Method in the Matrix of Sodium Alginate. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2. 2022;:363-366.
https://hdl.handle.net/21.15107/rcub_vinar_12993 .

Kokunešoski, Maja, Pošarac-Marković, Milica B., Katnić, Đurica, Baščarević, Z., Ilić, Svetlana, Grce, Ana, Šaponjić, Aleksandra, "Modifying Mesoporous SBA-15 by a Microencapsulation Method in the Matrix of Sodium Alginate" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2 (2022):363-366,
https://hdl.handle.net/21.15107/rcub_vinar_12993 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Kokunešoski, Maja
AU  - Ilić, Svetlana
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Barudžija, Tanja
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11283
AB  - The possibilities of obtaining nanoparticles of non-oxide ceramic powders of silicon
nitride (Si3N4) by the method of carbothermal reduction and nitriding of diatomaceous
earth, a natural bio-amorphous raw material of low crystallinity, were investigated in this
paper. Activated carbon was used as a carbon source. In order to obtain better quality
Si3N4 powder in a faster and more efficient way, commercial α-Si3N4 powder was
introduced into starting mixtures. The starting mixtures of diatomaceous earth, activated
carbon, and differnt amounts of commercial α-Si3N4 powder (5, 10, 15, and 20) wt.%
were thermally treated for 2 h at 1350 and 1450 ºC. The obtained powders were
characterized by the following methods: X-ray diffraction (XRD), infrared spectroscopy
with Fourier transform (FTIR) and scanning electron microscopy (SEM).
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2
T1  - Silicon nitride based powders obtained by carbothermal reduction and nitridation of diatomite
SP  - 370
EP  - 367
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11283
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Kokunešoski, Maja and Ilić, Svetlana and Radosavljević-Mihajlović, Ana S. and Barudžija, Tanja and Matović, Branko",
year = "2022",
abstract = "The possibilities of obtaining nanoparticles of non-oxide ceramic powders of silicon
nitride (Si3N4) by the method of carbothermal reduction and nitriding of diatomaceous
earth, a natural bio-amorphous raw material of low crystallinity, were investigated in this
paper. Activated carbon was used as a carbon source. In order to obtain better quality
Si3N4 powder in a faster and more efficient way, commercial α-Si3N4 powder was
introduced into starting mixtures. The starting mixtures of diatomaceous earth, activated
carbon, and differnt amounts of commercial α-Si3N4 powder (5, 10, 15, and 20) wt.%
were thermally treated for 2 h at 1350 and 1450 ºC. The obtained powders were
characterized by the following methods: X-ray diffraction (XRD), infrared spectroscopy
with Fourier transform (FTIR) and scanning electron microscopy (SEM).",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2",
title = "Silicon nitride based powders obtained by carbothermal reduction and nitridation of diatomite",
pages = "370-367",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11283"
}

Šaponjić, A., Kokunešoski, M., Ilić, S., Radosavljević-Mihajlović, A. S., Barudžija, T.,& Matović, B.. (2022). Silicon nitride based powders obtained by carbothermal reduction and nitridation of diatomite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2
Belgrade : Society of Physical Chemists of Serbia., 370-367.
https://hdl.handle.net/21.15107/rcub_vinar_11283

Šaponjić A, Kokunešoski M, Ilić S, Radosavljević-Mihajlović AS, Barudžija T, Matović B. Silicon nitride based powders obtained by carbothermal reduction and nitridation of diatomite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2. 2022;:370-367.
https://hdl.handle.net/21.15107/rcub_vinar_11283 .

Šaponjić, Aleksandra, Kokunešoski, Maja, Ilić, Svetlana, Radosavljević-Mihajlović, Ana S., Barudžija, Tanja, Matović, Branko, "Silicon nitride based powders obtained by carbothermal reduction and nitridation of diatomite" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, Vol. 2 (2022):370-367,
https://hdl.handle.net/21.15107/rcub_vinar_11283 .

Kokunešoski, M., Kićević, D., Šaponjić, Đ., Ilić, S., Egelja, A., Šaponjić, A.,& Bučevac, D.. (2022). Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka. in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju.
https://hdl.handle.net/21.15107/rcub_vinar_11416

Kokunešoski M, Kićević D, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A, Bučevac D. Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka. in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju. 2022;.
https://hdl.handle.net/21.15107/rcub_vinar_11416 .

Kokunešoski, Maja, Kićević, Dušan, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, Bučevac, Dušan, "Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka" in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju (2022),
https://hdl.handle.net/21.15107/rcub_vinar_11416 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Kokunešoski, Maja
AU  - Ilić, Svetlana
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10802
AB  - In the synthesis of silicon nitride (Si3N4) based powders by carbothermal reduction-nitridation of diatomaceous earth, the effects of addition of silicon nitride powder on the phase composition, particle size and shape were investigated in this paper. Activated carbon was used as carbon sources. In order to obtain better quality Si3N4 powder in a faster and more efficient way, α-Si3N4 powder was introduced into starting mixtures as seeds. The starting mixtures of diatomaceous earth, carbon source and commercial α-Si3N4 powder (5,10,15 and 20 wt.%) were thermally treated at 1350 °C and 1450. X-ray diffraction (XRD), infrared spectroscopy with Fourier transform (FTIR) and scanning electron microscopy (SEM) were employed to characterize the phases, functional groups, microstructure of the obtained powders. The major reduction of diatomaceous earth took place at 1450 °C. At 1350 °C particles retained the morphological characteristics of the starting diatomaceous earth. At 1450 °C, observed particles possess a polygonal habitus, which is characteristic for silicon nitride crystals.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Formation of nitride powders by carbothermal reduction- nitridation of diatomite
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10802
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Kokunešoski, Maja and Ilić, Svetlana and Radosavljević-Mihajlović, Ana S. and Matović, Branko",
year = "2022",
abstract = "In the synthesis of silicon nitride (Si3N4) based powders by carbothermal reduction-nitridation of diatomaceous earth, the effects of addition of silicon nitride powder on the phase composition, particle size and shape were investigated in this paper. Activated carbon was used as carbon sources. In order to obtain better quality Si3N4 powder in a faster and more efficient way, α-Si3N4 powder was introduced into starting mixtures as seeds. The starting mixtures of diatomaceous earth, carbon source and commercial α-Si3N4 powder (5,10,15 and 20 wt.%) were thermally treated at 1350 °C and 1450. X-ray diffraction (XRD), infrared spectroscopy with Fourier transform (FTIR) and scanning electron microscopy (SEM) were employed to characterize the phases, functional groups, microstructure of the obtained powders. The major reduction of diatomaceous earth took place at 1450 °C. At 1350 °C particles retained the morphological characteristics of the starting diatomaceous earth. At 1450 °C, observed particles possess a polygonal habitus, which is characteristic for silicon nitride crystals.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Formation of nitride powders by carbothermal reduction- nitridation of diatomite",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10802"
}

Šaponjić, A., Kokunešoski, M., Ilić, S., Radosavljević-Mihajlović, A. S.,& Matović, B.. (2022). Formation of nitride powders by carbothermal reduction- nitridation of diatomite. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 72.
https://hdl.handle.net/21.15107/rcub_vinar_10802

Šaponjić A, Kokunešoski M, Ilić S, Radosavljević-Mihajlović AS, Matović B. Formation of nitride powders by carbothermal reduction- nitridation of diatomite. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:72.
https://hdl.handle.net/21.15107/rcub_vinar_10802 .

Šaponjić, Aleksandra, Kokunešoski, Maja, Ilić, Svetlana, Radosavljević-Mihajlović, Ana S., Matović, Branko, "Formation of nitride powders by carbothermal reduction- nitridation of diatomite" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):72,
https://hdl.handle.net/21.15107/rcub_vinar_10802 .

TY  - CONF
AU  - Valenta-Šobot, Ana
AU  - Filipović Tričković, Jelena G.
AU  - Šaponjić, Aleksandra
AU  - Ilić, Svetlana
AU  - Grce, Ana
AU  - Katnić, Đurica
AU  - Kokunešoski, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11293
AB  - Mesoporous silica renders chemical and mechanical stability under biological conditions, but due to its physicochemical properties, could be potentially harmful to exposed cells. The aim of the current study was to estimate SBA-15 (concentration of 50, 100 and 250 µg/mL) impact on human peripheral blood mononuclear cells to induce cyto- and genotoxicity in vitro after 72 h treatment, as well as lipid peroxidation in serum samples ex vivo. SBA-15 mesoporous silica treatment impact on cell viability was performed by XTT assay, lipid peroxidation was estimated by determining malondialdehyde and 4-hydroxyalkenals levels and genotoxicity by micronucleus assay. SBA-15 treatments displayed genotoxic potential at the lowest concentration, while highest tested concentration led to decrease of cell viability and increase of lipid peroxidation. Chemical modification of SBA-15 material that could influence its physicochemical properties could be useful way to lower its toxicity.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - Mesoporous silica decrease cell viability in vitro in dose dependent manner
VL  - II
SP  - 442
EP  - 444
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11293
ER  - 

@conference{
author = "Valenta-Šobot, Ana and Filipović Tričković, Jelena G. and Šaponjić, Aleksandra and Ilić, Svetlana and Grce, Ana and Katnić, Đurica and Kokunešoski, Maja",
year = "2021",
abstract = "Mesoporous silica renders chemical and mechanical stability under biological conditions, but due to its physicochemical properties, could be potentially harmful to exposed cells. The aim of the current study was to estimate SBA-15 (concentration of 50, 100 and 250 µg/mL) impact on human peripheral blood mononuclear cells to induce cyto- and genotoxicity in vitro after 72 h treatment, as well as lipid peroxidation in serum samples ex vivo. SBA-15 mesoporous silica treatment impact on cell viability was performed by XTT assay, lipid peroxidation was estimated by determining malondialdehyde and 4-hydroxyalkenals levels and genotoxicity by micronucleus assay. SBA-15 treatments displayed genotoxic potential at the lowest concentration, while highest tested concentration led to decrease of cell viability and increase of lipid peroxidation. Chemical modification of SBA-15 material that could influence its physicochemical properties could be useful way to lower its toxicity.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "Mesoporous silica decrease cell viability in vitro in dose dependent manner",
volume = "II",
pages = "442-444",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11293"
}

Valenta-Šobot, A., Filipović Tričković, J. G., Šaponjić, A., Ilić, S., Grce, A., Katnić, Đ.,& Kokunešoski, M.. (2021). Mesoporous silica decrease cell viability in vitro in dose dependent manner. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., II, 442-444.
https://hdl.handle.net/21.15107/rcub_vinar_11293

Valenta-Šobot A, Filipović Tričković JG, Šaponjić A, Ilić S, Grce A, Katnić Đ, Kokunešoski M. Mesoporous silica decrease cell viability in vitro in dose dependent manner. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;II:442-444.
https://hdl.handle.net/21.15107/rcub_vinar_11293 .

Valenta-Šobot, Ana, Filipović Tričković, Jelena G., Šaponjić, Aleksandra, Ilić, Svetlana, Grce, Ana, Katnić, Đurica, Kokunešoski, Maja, "Mesoporous silica decrease cell viability in vitro in dose dependent manner" in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry, II (2021):442-444,
https://hdl.handle.net/21.15107/rcub_vinar_11293 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Valenta-Šobot, Ana
AU  - Grce, Ana
AU  - Pošarac-Marković, Milica
AU  - Šaponjić, Đorđe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11290
AB  - The template method synthesis of both SBA-15 materials with elongated and spherical particles was performed using a surfactant Pluronic P123. The HCl (p.a.) was used to synthesize material with elongated particles connected in chain structures grouped into shapes resembling sheaves of wheat. In the synthesis of spherical SBA-15 with diameters ranging from 0.5 to 2 μm, a spent HCl solution which was obtained after chemical treatment of clay was used where the dominant presence of the spheres was confirmed by the SEM method. In addition to the methods mentioned above, XRD, EDS and FTIR methods characterize SBA-15 materials.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - The influence of hydrochloric acid on the features of SBA-15 particles
VL  - II
SP  - 438
EP  - 441
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11290
ER  - 

@conference{
author = "Kokunešoski, Maja and Baščarević, Zvezdana and Ilić, Svetlana and Valenta-Šobot, Ana and Grce, Ana and Pošarac-Marković, Milica and Šaponjić, Đorđe",
year = "2021",
abstract = "The template method synthesis of both SBA-15 materials with elongated and spherical particles was performed using a surfactant Pluronic P123. The HCl (p.a.) was used to synthesize material with elongated particles connected in chain structures grouped into shapes resembling sheaves of wheat. In the synthesis of spherical SBA-15 with diameters ranging from 0.5 to 2 μm, a spent HCl solution which was obtained after chemical treatment of clay was used where the dominant presence of the spheres was confirmed by the SEM method. In addition to the methods mentioned above, XRD, EDS and FTIR methods characterize SBA-15 materials.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "The influence of hydrochloric acid on the features of SBA-15 particles",
volume = "II",
pages = "438-441",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11290"
}

Kokunešoski, M., Baščarević, Z., Ilić, S., Valenta-Šobot, A., Grce, A., Pošarac-Marković, M.,& Šaponjić, Đ.. (2021). The influence of hydrochloric acid on the features of SBA-15 particles. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., II, 438-441.
https://hdl.handle.net/21.15107/rcub_vinar_11290

Kokunešoski M, Baščarević Z, Ilić S, Valenta-Šobot A, Grce A, Pošarac-Marković M, Šaponjić Đ. The influence of hydrochloric acid on the features of SBA-15 particles. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;II:438-441.
https://hdl.handle.net/21.15107/rcub_vinar_11290 .

Kokunešoski, Maja, Baščarević, Zvezdana, Ilić, Svetlana, Valenta-Šobot, Ana, Grce, Ana, Pošarac-Marković, Milica, Šaponjić, Đorđe, "The influence of hydrochloric acid on the features of SBA-15 particles" in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry, II (2021):438-441,
https://hdl.handle.net/21.15107/rcub_vinar_11290 .

TY  - CONF
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
AU  - Radovanović, Željko
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Kokunešoski, Maja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10811
AB  - To obtain the titania (TiO2) nanoparticles, the conventional sol-gel method under acidic conditions, pH around 2, was employed. After synthesis, the obtained powder was calcinated at 500 and 700 °C. The X-ray diffraction analysis confirmed that the heat-treated powder at 500 °C was anatase phase, while the heat-treated powder at 700 °C was the mixture of anatase and rutile phase. The crystallite size of the anatase phase at 500 °C was 15 nm whereas at 700 °C crystallite size of the anatase was 47 nm and 63 nm for the rutile phase. The characteristic FE–SEM images revealed well distributed spherical shaped nanoparticles. An average diameter of nanoparticles was in the range of 20 – 30 nm. The average size of nanoparticles in the sample treated at 500 °C was lower than the nanoparticles in the one treated at 700 °C. Therefore, the specific surface area of synthesized pure TiO2 after heat treatment at lower temperatures is higher, promising better absorption and photocatalytic activity.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Sol-gel synthesis of titanium dioxide in acidic conditions
SP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10811
ER  - 

@conference{
author = "Ilić, Svetlana and Šaponjić, Aleksandra and Radovanović, Željko and Radosavljević-Mihajlović, Ana S. and Kokunešoski, Maja",
year = "2021",
abstract = "To obtain the titania (TiO2) nanoparticles, the conventional sol-gel method under acidic conditions, pH around 2, was employed. After synthesis, the obtained powder was calcinated at 500 and 700 °C. The X-ray diffraction analysis confirmed that the heat-treated powder at 500 °C was anatase phase, while the heat-treated powder at 700 °C was the mixture of anatase and rutile phase. The crystallite size of the anatase phase at 500 °C was 15 nm whereas at 700 °C crystallite size of the anatase was 47 nm and 63 nm for the rutile phase. The characteristic FE–SEM images revealed well distributed spherical shaped nanoparticles. An average diameter of nanoparticles was in the range of 20 – 30 nm. The average size of nanoparticles in the sample treated at 500 °C was lower than the nanoparticles in the one treated at 700 °C. Therefore, the specific surface area of synthesized pure TiO2 after heat treatment at lower temperatures is higher, promising better absorption and photocatalytic activity.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Sol-gel synthesis of titanium dioxide in acidic conditions",
pages = "69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10811"
}

Ilić, S., Šaponjić, A., Radovanović, Ž., Radosavljević-Mihajlović, A. S.,& Kokunešoski, M.. (2021). Sol-gel synthesis of titanium dioxide in acidic conditions. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 69.
https://hdl.handle.net/21.15107/rcub_vinar_10811

Ilić S, Šaponjić A, Radovanović Ž, Radosavljević-Mihajlović AS, Kokunešoski M. Sol-gel synthesis of titanium dioxide in acidic conditions. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:69.
https://hdl.handle.net/21.15107/rcub_vinar_10811 .

Ilić, Svetlana, Šaponjić, Aleksandra, Radovanović, Željko, Radosavljević-Mihajlović, Ana S., Kokunešoski, Maja, "Sol-gel synthesis of titanium dioxide in acidic conditions" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):69,
https://hdl.handle.net/21.15107/rcub_vinar_10811 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Valenta-Šobot, Ana
AU  - Šaponjić, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11306
PB  - Academy of Sciences and Arts of the Republic of Srpska
C3  - „Contemporary Materials 2021“ : 14th International Scientific Conference : programme and book of abstracts
T1  - Synthesis and characterisation of SBA-15 with spherical particles
SP  - 48
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11306
ER  - 

@conference{
author = "Kokunešoski, Maja and Baščarević, Zvezdana and Ilić, Svetlana and Valenta-Šobot, Ana and Šaponjić, Aleksandra",
year = "2021",
publisher = "Academy of Sciences and Arts of the Republic of Srpska",
journal = "„Contemporary Materials 2021“ : 14th International Scientific Conference : programme and book of abstracts",
title = "Synthesis and characterisation of SBA-15 with spherical particles",
pages = "48",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11306"
}

Kokunešoski, M., Baščarević, Z., Ilić, S., Valenta-Šobot, A.,& Šaponjić, A.. (2021). Synthesis and characterisation of SBA-15 with spherical particles. in „Contemporary Materials 2021“ : 14th International Scientific Conference : programme and book of abstracts
Academy of Sciences and Arts of the Republic of Srpska., 48.
https://hdl.handle.net/21.15107/rcub_vinar_11306

Kokunešoski M, Baščarević Z, Ilić S, Valenta-Šobot A, Šaponjić A. Synthesis and characterisation of SBA-15 with spherical particles. in „Contemporary Materials 2021“ : 14th International Scientific Conference : programme and book of abstracts. 2021;:48.
https://hdl.handle.net/21.15107/rcub_vinar_11306 .

Kokunešoski, Maja, Baščarević, Zvezdana, Ilić, Svetlana, Valenta-Šobot, Ana, Šaponjić, Aleksandra, "Synthesis and characterisation of SBA-15 with spherical particles" in „Contemporary Materials 2021“ : 14th International Scientific Conference : programme and book of abstracts (2021):48,
https://hdl.handle.net/21.15107/rcub_vinar_11306 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Bašćarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Valenta-Šobot, Ana
AU  - Grce, Ana
AU  - Pošarac-Marković, Milica B.
AU  - Šaponjić, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10799
AB  - The synthesis of SBA-15 material with spherical particles is performed by the template method by using only a surfactant Pluronic P123 under acidic conditions. In the synthesis of SBA-15 with spherical particles, an HCl solution was used after specialised chemical treatment of clay purification. The dominant presence of the spheres with diameters up to around 2 μm was confirmed by the scanning electron microscopy(SEM) method. In contrast, the Energy-dispersive X-ray spectroscopy(EDS) confirmed that the spheres consisted only of SiO2 in composition. In addition to the methods mentioned above, X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy(FTIR) methods were used to characterise SBA- 15 materials. Application of HCl solution after chemical treatment of clay purification represents the application of technology in the synthesis of spherical SBA-15.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Synthesis of spherical SBA-15 silica particles without the use of additional cosurfactant
SP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10799
ER  - 

@conference{
author = "Kokunešoski, Maja and Bašćarević, Zvezdana and Ilić, Svetlana and Valenta-Šobot, Ana and Grce, Ana and Pošarac-Marković, Milica B. and Šaponjić, Aleksandra",
year = "2021",
abstract = "The synthesis of SBA-15 material with spherical particles is performed by the template method by using only a surfactant Pluronic P123 under acidic conditions. In the synthesis of SBA-15 with spherical particles, an HCl solution was used after specialised chemical treatment of clay purification. The dominant presence of the spheres with diameters up to around 2 μm was confirmed by the scanning electron microscopy(SEM) method. In contrast, the Energy-dispersive X-ray spectroscopy(EDS) confirmed that the spheres consisted only of SiO2 in composition. In addition to the methods mentioned above, X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy(FTIR) methods were used to characterise SBA- 15 materials. Application of HCl solution after chemical treatment of clay purification represents the application of technology in the synthesis of spherical SBA-15.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Synthesis of spherical SBA-15 silica particles without the use of additional cosurfactant",
pages = "66",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10799"
}

Kokunešoski, M., Bašćarević, Z., Ilić, S., Valenta-Šobot, A., Grce, A., Pošarac-Marković, M. B.,& Šaponjić, A.. (2021). Synthesis of spherical SBA-15 silica particles without the use of additional cosurfactant. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 66.
https://hdl.handle.net/21.15107/rcub_vinar_10799

Kokunešoski M, Bašćarević Z, Ilić S, Valenta-Šobot A, Grce A, Pošarac-Marković MB, Šaponjić A. Synthesis of spherical SBA-15 silica particles without the use of additional cosurfactant. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:66.
https://hdl.handle.net/21.15107/rcub_vinar_10799 .

Kokunešoski, Maja, Bašćarević, Zvezdana, Ilić, Svetlana, Valenta-Šobot, Ana, Grce, Ana, Pošarac-Marković, Milica B., Šaponjić, Aleksandra, "Synthesis of spherical SBA-15 silica particles without the use of additional cosurfactant" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):66,
https://hdl.handle.net/21.15107/rcub_vinar_10799 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Gyoshev, Stanislav
AU  - Bašćarević, Zvezdana
AU  - Ilić, Svetlana M.
AU  - Šaponjić, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10800
AB  - The clay minerals deposit from the mining basin Kolubara, Serbia, is a natural sediment material with high economic potential in many fields. The chemical composition of starting clay determined by inductively coupled plasma spectrometry shows that its main composition of SiO2 is 88.00 wt.%. Organic impurities from clay have been removed by heat treatment at 600 °C for 2 h in air. After thermal treatment, an aqueous solution of HCl sedimentary mineral was chemically treated. Surface properties of starting clay and thermally and chemically treated clay (treated clay) were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and particle size distribution method. The XRD analyses of the starting and treated clay confirmed that quartz is a significant phase, followed by the appearance of feldspar and smectite clays. The SEM method showed impressively layered microstructure on various magnifications for both groups of investigated materials. The average particle diameter value for starting clay was about 23 μm and about 53 μm for treated clay. These methods showed that the starting clay changed the surface properties during thermal and chemical treatment, resulting in the merging of clay layers.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Characterization of clay mineral from Kolubara mining basin, Serbia, with a determined layered structure
SP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10800
ER  - 

@conference{
author = "Kokunešoski, Maja and Gyoshev, Stanislav and Bašćarević, Zvezdana and Ilić, Svetlana M. and Šaponjić, Aleksandra",
year = "2021",
abstract = "The clay minerals deposit from the mining basin Kolubara, Serbia, is a natural sediment material with high economic potential in many fields. The chemical composition of starting clay determined by inductively coupled plasma spectrometry shows that its main composition of SiO2 is 88.00 wt.%. Organic impurities from clay have been removed by heat treatment at 600 °C for 2 h in air. After thermal treatment, an aqueous solution of HCl sedimentary mineral was chemically treated. Surface properties of starting clay and thermally and chemically treated clay (treated clay) were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and particle size distribution method. The XRD analyses of the starting and treated clay confirmed that quartz is a significant phase, followed by the appearance of feldspar and smectite clays. The SEM method showed impressively layered microstructure on various magnifications for both groups of investigated materials. The average particle diameter value for starting clay was about 23 μm and about 53 μm for treated clay. These methods showed that the starting clay changed the surface properties during thermal and chemical treatment, resulting in the merging of clay layers.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Characterization of clay mineral from Kolubara mining basin, Serbia, with a determined layered structure",
pages = "67",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10800"
}

Kokunešoski, M., Gyoshev, S., Bašćarević, Z., Ilić, S. M.,& Šaponjić, A.. (2021). Characterization of clay mineral from Kolubara mining basin, Serbia, with a determined layered structure. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 67.
https://hdl.handle.net/21.15107/rcub_vinar_10800

Kokunešoski M, Gyoshev S, Bašćarević Z, Ilić SM, Šaponjić A. Characterization of clay mineral from Kolubara mining basin, Serbia, with a determined layered structure. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:67.
https://hdl.handle.net/21.15107/rcub_vinar_10800 .

Kokunešoski, Maja, Gyoshev, Stanislav, Bašćarević, Zvezdana, Ilić, Svetlana M., Šaponjić, Aleksandra, "Characterization of clay mineral from Kolubara mining basin, Serbia, with a determined layered structure" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):67,
https://hdl.handle.net/21.15107/rcub_vinar_10800 .

TY  - JOUR
AU  - Ilić, Svetlana M.
AU  - Ivanovski, Valentin N.
AU  - Radovanović, Željko
AU  - Egelja, Adela
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Matović, Branko
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8942
AB  - The study of an effect of iron doping on the structural, microstructural and mechanical properties of sintered iron-doped mullite is presented. The results of phase composition, performed in detail by Mössbauer spectroscopy and XRD analysis, revealed that all added iron was inside the mullite lattice forming the single phase up to 12% by weight of Fe2O3 and 1300 °C. Samples, which were processed at 1550 °C, contained secondary phases, hematite or magnetite, regardless of the amount of added iron. Furthermore, the addition of iron decreases the values of relative linear shrinkage comparing to the values of undoped one (~18%) while the densities of the sintered samples rise as well as their values of microhardness. Even though the density values were not too high (90 TD%), the obtained values of microhardness were excellent, 1634 HV0.1 for maximum iron content due to the characteristic mullite microstructure.
T2  - Materials Science and Engineering: B
T1  - Structural, microstructural and mechanical properties of sintered iron-doped mullite
VL  - 256
SP  - 114543
DO  - 10.1016/j.mseb.2020.114543
ER  - 

@article{
author = "Ilić, Svetlana M. and Ivanovski, Valentin N. and Radovanović, Željko and Egelja, Adela and Kokunešoski, Maja and Šaponjić, Aleksandra and Matović, Branko",
year = "2020",
abstract = "The study of an effect of iron doping on the structural, microstructural and mechanical properties of sintered iron-doped mullite is presented. The results of phase composition, performed in detail by Mössbauer spectroscopy and XRD analysis, revealed that all added iron was inside the mullite lattice forming the single phase up to 12% by weight of Fe2O3 and 1300 °C. Samples, which were processed at 1550 °C, contained secondary phases, hematite or magnetite, regardless of the amount of added iron. Furthermore, the addition of iron decreases the values of relative linear shrinkage comparing to the values of undoped one (~18%) while the densities of the sintered samples rise as well as their values of microhardness. Even though the density values were not too high (90 TD%), the obtained values of microhardness were excellent, 1634 HV0.1 for maximum iron content due to the characteristic mullite microstructure.",
journal = "Materials Science and Engineering: B",
title = "Structural, microstructural and mechanical properties of sintered iron-doped mullite",
volume = "256",
pages = "114543",
doi = "10.1016/j.mseb.2020.114543"
}

Ilić, S. M., Ivanovski, V. N., Radovanović, Ž., Egelja, A., Kokunešoski, M., Šaponjić, A.,& Matović, B.. (2020). Structural, microstructural and mechanical properties of sintered iron-doped mullite. in Materials Science and Engineering: B, 256, 114543.
https://doi.org/10.1016/j.mseb.2020.114543

Ilić SM, Ivanovski VN, Radovanović Ž, Egelja A, Kokunešoski M, Šaponjić A, Matović B. Structural, microstructural and mechanical properties of sintered iron-doped mullite. in Materials Science and Engineering: B. 2020;256:114543.
doi:10.1016/j.mseb.2020.114543 .

Ilić, Svetlana M., Ivanovski, Valentin N., Radovanović, Željko, Egelja, Adela, Kokunešoski, Maja, Šaponjić, Aleksandra, Matović, Branko, "Structural, microstructural and mechanical properties of sintered iron-doped mullite" in Materials Science and Engineering: B, 256 (2020):114543,
https://doi.org/10.1016/j.mseb.2020.114543 . .

TY  - JOUR
AU  - Ilić, Svetlana M.
AU  - Babić, Biljana M.
AU  - Bjelajac, Anđelika
AU  - Stoimenov, Nikolay
AU  - Kljajević, Ljiljana M.
AU  - Pošarac-Marković, Milica B.
AU  - Matović, Branko
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8823
AB  - The structural and morphological properties of iron-doped mullite powders are the subject of the present study. The powders of undoped and iron-doped mullite in the composition range of 3–15 wt% Fe2O3 were synthesized by a combination of sol-gel and combustion methods. The excess of water and urea were introduced in reaction solutions to enhance the copolymerization of aluminum and silicon species. The results of structural characterization revealed that the synthesized mullite powders were amorphous of a hybrid type. The specific surface area of the undoped mullite powder was 262 m2 g-1 with a maximum pore radius (dp) of 2 nm classifying it into mesoporous materials. The addition of iron has reduced the specific surface area, while the pore size value remained the same except for the sample with 3 wt% Fe2O3 (SBET = 278 m2 g-1; dp = 3 nm). The presence of iron caused lowering the temperature of liquid phase formation, while present urea combusted providing the increase of the temperature locally that caused the sintering and formation of agglomerates of smaller particles. However, the results of the particle size analysis are not straightforward. The values of mean volume diameter (D[3,4]) indicated that the particle size increased to 6 wt% Fe2O3 (123.6 μm), and then decreased and for the sample with 12 wt% Fe2O3, it was equal to 96.6 μm. Thus, the added iron contributed to the more uniform particle size distribution. The SEM analysis has also shown the coarse powder particles consisted of the coalesced smaller particles. © 2020 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Structural and morphological characterization of iron-doped sol-gel derived mullite powders
VL  - 46
IS  - 9
SP  - 13107
EP  - 13113
DO  - 10.1016/j.ceramint.2020.02.083
ER  - 

@article{
author = "Ilić, Svetlana M. and Babić, Biljana M. and Bjelajac, Anđelika and Stoimenov, Nikolay and Kljajević, Ljiljana M. and Pošarac-Marković, Milica B. and Matović, Branko",
year = "2020",
abstract = "The structural and morphological properties of iron-doped mullite powders are the subject of the present study. The powders of undoped and iron-doped mullite in the composition range of 3–15 wt% Fe2O3 were synthesized by a combination of sol-gel and combustion methods. The excess of water and urea were introduced in reaction solutions to enhance the copolymerization of aluminum and silicon species. The results of structural characterization revealed that the synthesized mullite powders were amorphous of a hybrid type. The specific surface area of the undoped mullite powder was 262 m2 g-1 with a maximum pore radius (dp) of 2 nm classifying it into mesoporous materials. The addition of iron has reduced the specific surface area, while the pore size value remained the same except for the sample with 3 wt% Fe2O3 (SBET = 278 m2 g-1; dp = 3 nm). The presence of iron caused lowering the temperature of liquid phase formation, while present urea combusted providing the increase of the temperature locally that caused the sintering and formation of agglomerates of smaller particles. However, the results of the particle size analysis are not straightforward. The values of mean volume diameter (D[3,4]) indicated that the particle size increased to 6 wt% Fe2O3 (123.6 μm), and then decreased and for the sample with 12 wt% Fe2O3, it was equal to 96.6 μm. Thus, the added iron contributed to the more uniform particle size distribution. The SEM analysis has also shown the coarse powder particles consisted of the coalesced smaller particles. © 2020 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Structural and morphological characterization of iron-doped sol-gel derived mullite powders",
volume = "46",
number = "9",
pages = "13107-13113",
doi = "10.1016/j.ceramint.2020.02.083"
}

Ilić, S. M., Babić, B. M., Bjelajac, A., Stoimenov, N., Kljajević, L. M., Pošarac-Marković, M. B.,& Matović, B.. (2020). Structural and morphological characterization of iron-doped sol-gel derived mullite powders. in Ceramics International, 46(9), 13107-13113.
https://doi.org/10.1016/j.ceramint.2020.02.083

Ilić SM, Babić BM, Bjelajac A, Stoimenov N, Kljajević LM, Pošarac-Marković MB, Matović B. Structural and morphological characterization of iron-doped sol-gel derived mullite powders. in Ceramics International. 2020;46(9):13107-13113.
doi:10.1016/j.ceramint.2020.02.083 .

Ilić, Svetlana M., Babić, Biljana M., Bjelajac, Anđelika, Stoimenov, Nikolay, Kljajević, Ljiljana M., Pošarac-Marković, Milica B., Matović, Branko, "Structural and morphological characterization of iron-doped sol-gel derived mullite powders" in Ceramics International, 46, no. 9 (2020):13107-13113,
https://doi.org/10.1016/j.ceramint.2020.02.083 . .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Stanković, Miroslav
AU  - Vuković, Marina
AU  - Majstorović, Jelena
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9790
AB  - Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.
T2  - Science of Sintering
T1  - Macroporous monoliths based оn natural mineral sources, clay аnd diatomite
VL  - 52
IS  - 3
SP  - 339
EP  - 348
DO  - 10.2298/SOS2003339K
ER  - 

@article{
author = "Kokunešoski, Maja and Stanković, Miroslav and Vuković, Marina and Majstorović, Jelena and Šaponjić, Đorđe and Ilić, Svetlana and Šaponjić, Aleksandra",
year = "2020",
abstract = "Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.",
journal = "Science of Sintering",
title = "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite",
volume = "52",
number = "3",
pages = "339-348",
doi = "10.2298/SOS2003339K"
}

Kokunešoski, M., Stanković, M., Vuković, M., Majstorović, J., Šaponjić, Đ., Ilić, S.,& Šaponjić, A.. (2020). Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering, 52(3), 339-348.
https://doi.org/10.2298/SOS2003339K

Kokunešoski M, Stanković M, Vuković M, Majstorović J, Šaponjić Đ, Ilić S, Šaponjić A. Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering. 2020;52(3):339-348.
doi:10.2298/SOS2003339K .

Kokunešoski, Maja, Stanković, Miroslav, Vuković, Marina, Majstorović, Jelena, Šaponjić, Đorđe, Ilić, Svetlana, Šaponjić, Aleksandra, "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite" in Science of Sintering, 52, no. 3 (2020):339-348,
https://doi.org/10.2298/SOS2003339K . .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Janković Mandić, Ljiljana
AU  - Baščarević, Zvezdana
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11296
AB  - The  mining  basin  Kolubara  lies  about  50  km  southwest  of  Belgrade  and  stretches  across  the  river Kolubara from Lajkovac to its mouth in the Sava River. During coal exploitation a huge amount of clay is deposited as separate layer. Clay as a raw mineral material has a high economic potential due to their low price and high abundance.  This  material  is  used  for  various  applications  such  as  filters,  heat  insulators,  absorbents,  catalyst supports,  building  materialn  and  advanced  environmental  applications.  Clay  from  Kolubara  mining  basin  is caracterised  by  inductively  coupled  plasma  spectroscopy  (ICP),  X-ray  diffraction  (XRD),  Scanning  electron microscopy  (SEM).  Also,  activity  concentrations  of 40K,  226Ra and  232Th  in  clay  from  Kolubara  mining,  were determined by gamma ray spectrometry with HP Ge detector.
PB  - Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
C3  - 7th International Symposium Mining and Environmental Protection
T1  - Composition and natural radionuclides in clay from Kolubara mining basin, Serbia
SP  - 148
EP  - 151
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11296
ER  - 

@conference{
author = "Kokunešoski, Maja and Janković Mandić, Ljiljana and Baščarević, Zvezdana and Šaponjić, Đorđe and Ilić, Svetlana and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
abstract = "The  mining  basin  Kolubara  lies  about  50  km  southwest  of  Belgrade  and  stretches  across  the  river Kolubara from Lajkovac to its mouth in the Sava River. During coal exploitation a huge amount of clay is deposited as separate layer. Clay as a raw mineral material has a high economic potential due to their low price and high abundance.  This  material  is  used  for  various  applications  such  as  filters,  heat  insulators,  absorbents,  catalyst supports,  building  materialn  and  advanced  environmental  applications.  Clay  from  Kolubara  mining  basin  is caracterised  by  inductively  coupled  plasma  spectroscopy  (ICP),  X-ray  diffraction  (XRD),  Scanning  electron microscopy  (SEM).  Also,  activity  concentrations  of 40K,  226Ra and  232Th  in  clay  from  Kolubara  mining,  were determined by gamma ray spectrometry with HP Ge detector.",
publisher = "Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia",
journal = "7th International Symposium Mining and Environmental Protection",
title = "Composition and natural radionuclides in clay from Kolubara mining basin, Serbia",
pages = "148-151",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11296"
}

Kokunešoski, M., Janković Mandić, L., Baščarević, Z., Šaponjić, Đ., Ilić, S., Egelja, A.,& Šaponjić, A.. (2019). Composition and natural radionuclides in clay from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection
Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia., 148-151.
https://hdl.handle.net/21.15107/rcub_vinar_11296

Kokunešoski M, Janković Mandić L, Baščarević Z, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A. Composition and natural radionuclides in clay from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection. 2019;:148-151.
https://hdl.handle.net/21.15107/rcub_vinar_11296 .

Kokunešoski, Maja, Janković Mandić, Ljiljana, Baščarević, Zvezdana, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, "Composition and natural radionuclides in clay from Kolubara mining basin, Serbia" in 7th International Symposium Mining and Environmental Protection (2019):148-151,
https://hdl.handle.net/21.15107/rcub_vinar_11296 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Šaponjić, Đorđe
AU  - Egelja, Adela
AU  - Janković Mandić, Ljiljana
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11298
AB  - Diatomaceous earth is of sedimentary origin consists mainly of accumulated skeletons formed as a protective covering of the diatoms. Usually, high absorption capacity of diatomaceous earth provides its wide use as heat insulation, filter and absorbent material. Starting raw material diatomaceous earth from surface coal mine Kolubara, Serbia, was characterized using, scanning electron microscopy (SEM), X-ray diffraction (XRD). Chemical composition of diatomaceous earth was determined by wet chemical methods. In addition, the absorbed gamma ray dose rates is estimated based on the measured activity concentrations of natural radionuclides in clay were determined by gamma spectrometry. This research shows that this material is environmentally safe for further use.
PB  - Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
C3  - 7th International Symposium Mining and Environmental Protection
T1  - Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia
SP  - 157
EP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11298
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Baščarević, Zvezdana and Ilić, Svetlana and Šaponjić, Đorđe and Egelja, Adela and Janković Mandić, Ljiljana and Kokunešoski, Maja",
year = "2019",
abstract = "Diatomaceous earth is of sedimentary origin consists mainly of accumulated skeletons formed as a protective covering of the diatoms. Usually, high absorption capacity of diatomaceous earth provides its wide use as heat insulation, filter and absorbent material. Starting raw material diatomaceous earth from surface coal mine Kolubara, Serbia, was characterized using, scanning electron microscopy (SEM), X-ray diffraction (XRD). Chemical composition of diatomaceous earth was determined by wet chemical methods. In addition, the absorbed gamma ray dose rates is estimated based on the measured activity concentrations of natural radionuclides in clay were determined by gamma spectrometry. This research shows that this material is environmentally safe for further use.",
publisher = "Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia",
journal = "7th International Symposium Mining and Environmental Protection",
title = "Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia",
pages = "157-159",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11298"
}

Šaponjić, A., Baščarević, Z., Ilić, S., Šaponjić, Đ., Egelja, A., Janković Mandić, L.,& Kokunešoski, M.. (2019). Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection
Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia., 157-159.
https://hdl.handle.net/21.15107/rcub_vinar_11298

Šaponjić A, Baščarević Z, Ilić S, Šaponjić Đ, Egelja A, Janković Mandić L, Kokunešoski M. Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection. 2019;:157-159.
https://hdl.handle.net/21.15107/rcub_vinar_11298 .

Šaponjić, Aleksandra, Baščarević, Zvezdana, Ilić, Svetlana, Šaponjić, Đorđe, Egelja, Adela, Janković Mandić, Ljiljana, Kokunešoski, Maja, "Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia" in 7th International Symposium Mining and Environmental Protection (2019):157-159,
https://hdl.handle.net/21.15107/rcub_vinar_11298 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Šaponjić, Đorđe
AU  - Egelja, Adela
AU  - Janković Mandić, Ljiljana
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11321
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
T1  - Characterization of diatomsceous earth from Kolubara mining basin, Serbia
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11321
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Baščarević, Zvezdana and Ilić, Svetlana and Šaponjić, Đorđe and Egelja, Adela and Janković Mandić, Ljiljana and Kokunešoski, Maja",
year = "2019",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade",
title = "Characterization of diatomsceous earth from Kolubara mining basin, Serbia",
pages = "57",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11321"
}

Šaponjić, A., Baščarević, Z., Ilić, S., Šaponjić, Đ., Egelja, A., Janković Mandić, L.,& Kokunešoski, M.. (2019). Characterization of diatomsceous earth from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
Belgrade : Serbian Ceramic Society., 57.
https://hdl.handle.net/21.15107/rcub_vinar_11321

Šaponjić A, Baščarević Z, Ilić S, Šaponjić Đ, Egelja A, Janković Mandić L, Kokunešoski M. Characterization of diatomsceous earth from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade. 2019;:57.
https://hdl.handle.net/21.15107/rcub_vinar_11321 .

Šaponjić, Aleksandra, Baščarević, Zvezdana, Ilić, Svetlana, Šaponjić, Đorđe, Egelja, Adela, Janković Mandić, Ljiljana, Kokunešoski, Maja, "Characterization of diatomsceous earth from Kolubara mining basin, Serbia" in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade (2019):57,
https://hdl.handle.net/21.15107/rcub_vinar_11321 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Janković Mandić, Ljiljana
AU  - Baščarević, Zvezdana
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11322
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
T1  - Characterization of clay from Kolubara mining basin, Serbia
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11322
ER  - 

@conference{
author = "Kokunešoski, Maja and Janković Mandić, Ljiljana and Baščarević, Zvezdana and Šaponjić, Đorđe and Ilić, Svetlana and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade",
title = "Characterization of clay from Kolubara mining basin, Serbia",
pages = "57",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11322"
}

Kokunešoski, M., Janković Mandić, L., Baščarević, Z., Šaponjić, Đ., Ilić, S., Egelja, A.,& Šaponjić, A.. (2019). Characterization of clay from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
Belgrade : Serbian Ceramic Society., 57.
https://hdl.handle.net/21.15107/rcub_vinar_11322

Kokunešoski M, Janković Mandić L, Baščarević Z, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A. Characterization of clay from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade. 2019;:57.
https://hdl.handle.net/21.15107/rcub_vinar_11322 .

Kokunešoski, Maja, Janković Mandić, Ljiljana, Baščarević, Zvezdana, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, "Characterization of clay from Kolubara mining basin, Serbia" in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade (2019):57,
https://hdl.handle.net/21.15107/rcub_vinar_11322 .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Kićević, Dušan
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana M.
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10939
AB  - Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene.
AB  - Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.
T2  - Zaštita materijala
T1  - Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine
T1  - Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics
VL  - 60
IS  - 2
SP  - 157
EP  - 161
DO  - 10.5937/zasmat1902157K
ER  - 

@article{
author = "Kokunešoski, Maja and Kićević, Dušan and Šaponjić, Đorđe and Ilić, Svetlana M. and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
abstract = "Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene., Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.",
journal = "Zaštita materijala",
title = "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine, Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics",
volume = "60",
number = "2",
pages = "157-161",
doi = "10.5937/zasmat1902157K"
}

Kokunešoski, M., Kićević, D., Šaponjić, Đ., Ilić, S. M., Egelja, A.,& Šaponjić, A.. (2019). Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala, 60(2), 157-161.
https://doi.org/10.5937/zasmat1902157K

Kokunešoski M, Kićević D, Šaponjić Đ, Ilić SM, Egelja A, Šaponjić A. Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala. 2019;60(2):157-161.
doi:10.5937/zasmat1902157K .

Kokunešoski, Maja, Kićević, Dušan, Šaponjić, Đorđe, Ilić, Svetlana M., Egelja, Adela, Šaponjić, Aleksandra, "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine" in Zaštita materijala, 60, no. 2 (2019):157-161,
https://doi.org/10.5937/zasmat1902157K . .

TY  - THES
AU  - Ilić, Svetlana M.
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6276
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:18913/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=99999&RID=50772495
UR  - http://nardus.mpn.gov.rs/123456789/10281
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8054
AB  - Предмет ове докторске дисертације је синтеза мулита допираног гвожђем у опсегу састава од 3–15 мас% Fe2O3 применом колоидног сол-гел поступка у комбинацији са методом сагоревања. Након синтезе, извршена је карактеризација синтетисаних и термички третираних прахова прекурсора мулита. Методом диференцијалнo-скенирајуће калориметрије утврђено је да се процес формирања мулита одвија у два ступња, што указује на двофазну природу синтетисаних прахова прекурсора мулита...
AB  - The subject of this doctoral dissertation is the synthesis of iron doped mullite in composition range 3 – 15 wt% Fe2O3 employing colloidal sol-gel technique combined with combustion synthesis method. After synthesis, characterization of synthesized and thermally treated mullite precursor powders was performed. The DSC/TGA analysis reported that the mullitization is two-step process, which reveals the diphasic nature of synthesized precursors...
PB  - Универзитет у Београду, Технолошко-металуршки факултет
T2  - Универзитет у Београду
T1  - Сол-гел синтеза и карактеризација мулита допираног гвожђем
UR  - https://hdl.handle.net/21.15107/rcub_nardus_10281
ER  - 

@phdthesis{
author = "Ilić, Svetlana M.",
year = "2018",
abstract = "Предмет ове докторске дисертације је синтеза мулита допираног гвожђем у опсегу састава од 3–15 мас% Fe2O3 применом колоидног сол-гел поступка у комбинацији са методом сагоревања. Након синтезе, извршена је карактеризација синтетисаних и термички третираних прахова прекурсора мулита. Методом диференцијалнo-скенирајуће калориметрије утврђено је да се процес формирања мулита одвија у два ступња, што указује на двофазну природу синтетисаних прахова прекурсора мулита..., The subject of this doctoral dissertation is the synthesis of iron doped mullite in composition range 3 – 15 wt% Fe2O3 employing colloidal sol-gel technique combined with combustion synthesis method. After synthesis, characterization of synthesized and thermally treated mullite precursor powders was performed. The DSC/TGA analysis reported that the mullitization is two-step process, which reveals the diphasic nature of synthesized precursors...",
publisher = "Универзитет у Београду, Технолошко-металуршки факултет",
journal = "Универзитет у Београду",
title = "Сол-гел синтеза и карактеризација мулита допираног гвожђем",
url = "https://hdl.handle.net/21.15107/rcub_nardus_10281"
}

Ilić, S. M.. (2018). Сол-гел синтеза и карактеризација мулита допираног гвожђем. in Универзитет у Београду
Универзитет у Београду, Технолошко-металуршки факултет..
https://hdl.handle.net/21.15107/rcub_nardus_10281

Ilić SM. Сол-гел синтеза и карактеризација мулита допираног гвожђем. in Универзитет у Београду. 2018;.
https://hdl.handle.net/21.15107/rcub_nardus_10281 .

Ilić, Svetlana M., "Сол-гел синтеза и карактеризација мулита допираног гвожђем" in Универзитет у Београду (2018),
https://hdl.handle.net/21.15107/rcub_nardus_10281 .

TY  - JOUR
AU  - Ilić, Svetlana M.
AU  - Zec, Slavica
AU  - Rosić, Milena
AU  - Maksimović, Vesna
AU  - Ružić, Jovana
AU  - Urbanovich, Vladimir
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/925
AB  - Investigations of the high-pressure sintered nanocrystalline mullite powder are presented. The synthesized mullite powder with crystallite size of 51 nm was densified by using high-pressure anvil-type with hollows apparatus at 4 GPa over the temperature range of 1100-1500 degrees C in 100 degrees C steps. The phase composition and structural parameters of the densified samples were studied as a function of densification temperature. The XRD analysis revealed the appearance of new phases, such as kyanite and corundum, whose development affected the densities of the sintered samples. High relative densities of the sintered samples were obtained because of the application of high pressure. The needle-like microstructure was developed owing to the anisotropic grain growth of mullite. The elongated mullite grains reached the length of approximately 5 mu m at 1400 degrees C, whereas the grains treated at 1500 degrees C became thicker preserving the same needle length. The Vickers microhardness of the developed microstructures increased with the increase of temperature up to 1400 degrees C, while at 1500 degrees C it was slightly reduced due to the grain coarsening. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - High pressure densification of nanocrystalline mullite powder
VL  - 42
IS  - 4
SP  - 5319
EP  - 5325
DO  - 10.1016/j.ceramint.2015.12.062
ER  - 

@article{
author = "Ilić, Svetlana M. and Zec, Slavica and Rosić, Milena and Maksimović, Vesna and Ružić, Jovana and Urbanovich, Vladimir and Matović, Branko",
year = "2016",
abstract = "Investigations of the high-pressure sintered nanocrystalline mullite powder are presented. The synthesized mullite powder with crystallite size of 51 nm was densified by using high-pressure anvil-type with hollows apparatus at 4 GPa over the temperature range of 1100-1500 degrees C in 100 degrees C steps. The phase composition and structural parameters of the densified samples were studied as a function of densification temperature. The XRD analysis revealed the appearance of new phases, such as kyanite and corundum, whose development affected the densities of the sintered samples. High relative densities of the sintered samples were obtained because of the application of high pressure. The needle-like microstructure was developed owing to the anisotropic grain growth of mullite. The elongated mullite grains reached the length of approximately 5 mu m at 1400 degrees C, whereas the grains treated at 1500 degrees C became thicker preserving the same needle length. The Vickers microhardness of the developed microstructures increased with the increase of temperature up to 1400 degrees C, while at 1500 degrees C it was slightly reduced due to the grain coarsening. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "High pressure densification of nanocrystalline mullite powder",
volume = "42",
number = "4",
pages = "5319-5325",
doi = "10.1016/j.ceramint.2015.12.062"
}

Ilić, S. M., Zec, S., Rosić, M., Maksimović, V., Ružić, J., Urbanovich, V.,& Matović, B.. (2016). High pressure densification of nanocrystalline mullite powder. in Ceramics International
Elsevier., 42(4), 5319-5325.
https://doi.org/10.1016/j.ceramint.2015.12.062

Ilić SM, Zec S, Rosić M, Maksimović V, Ružić J, Urbanovich V, Matović B. High pressure densification of nanocrystalline mullite powder. in Ceramics International. 2016;42(4):5319-5325.
doi:10.1016/j.ceramint.2015.12.062 .

Ilić, Svetlana M., Zec, Slavica, Rosić, Milena, Maksimović, Vesna, Ružić, Jovana, Urbanovich, Vladimir, Matović, Branko, "High pressure densification of nanocrystalline mullite powder" in Ceramics International, 42, no. 4 (2016):5319-5325,
https://doi.org/10.1016/j.ceramint.2015.12.062 . .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Stanković, Miroslav
AU  - Majstorović, Jelena
AU  - Egelja, Adela
AU  - Ilić, Svetlana M.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/275
AB  - Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.
T2  - Ceramics International
T1  - Effect of boric acid on the porosity of clay and diatomite monoliths
VL  - 42
IS  - 5
SP  - 6383
EP  - 6390
DO  - 10.1016/j.ceramint.2016.01.034
ER  - 

@article{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Stanković, Miroslav and Majstorović, Jelena and Egelja, Adela and Ilić, Svetlana M. and Matović, Branko",
year = "2016",
abstract = "Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.",
journal = "Ceramics International",
title = "Effect of boric acid on the porosity of clay and diatomite monoliths",
volume = "42",
number = "5",
pages = "6383-6390",
doi = "10.1016/j.ceramint.2016.01.034"
}

Kokunešoski, M., Šaponjić, A., Stanković, M., Majstorović, J., Egelja, A., Ilić, S. M.,& Matović, B.. (2016). Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International, 42(5), 6383-6390.
https://doi.org/10.1016/j.ceramint.2016.01.034

Kokunešoski M, Šaponjić A, Stanković M, Majstorović J, Egelja A, Ilić SM, Matović B. Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International. 2016;42(5):6383-6390.
doi:10.1016/j.ceramint.2016.01.034 .

Kokunešoski, Maja, Šaponjić, Aleksandra, Stanković, Miroslav, Majstorović, Jelena, Egelja, Adela, Ilić, Svetlana M., Matović, Branko, "Effect of boric acid on the porosity of clay and diatomite monoliths" in Ceramics International, 42, no. 5 (2016):6383-6390,
https://doi.org/10.1016/j.ceramint.2016.01.034 . .