TY  - JOUR
AU  - Savić, Veljko
AU  - Dojčinović, Marina
AU  - Topalović, Vladimir
AU  - Cvijović-Alagić, Ivana
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2024
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1233
AB  - The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass-ceramic from vitrified fly ash. Glass-ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter-crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T= 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass-ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C, and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass-ceramic samples was determined using the Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass-ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.
PB  - Springer Nature
T2  - International Journal of Environmental Science and Technology
T1  - The effect of sintering temperature on cavitation erosion in glass-ceramics based on coal fly ash
EP  - 6074
IS  - 7
SP  - 6065
VL  - 21
DO  - 10.1007/s13762-023-05411-9
ER  - 

@article{
author = "Savić, Veljko and Dojčinović, Marina and Topalović, Vladimir and Cvijović-Alagić, Ivana and Stojanović, Jovica and Matijašević, Srđan and Grujić, Snežana",
year = "2024",
abstract = "The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass-ceramic from vitrified fly ash. Glass-ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter-crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T= 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass-ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C, and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass-ceramic samples was determined using the Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass-ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.",
publisher = "Springer Nature",
journal = "International Journal of Environmental Science and Technology",
title = "The effect of sintering temperature on cavitation erosion in glass-ceramics based on coal fly ash",
pages = "6074-6065",
number = "7",
volume = "21",
doi = "10.1007/s13762-023-05411-9"
}

Savić, V., Dojčinović, M., Topalović, V., Cvijović-Alagić, I., Stojanović, J., Matijašević, S.,& Grujić, S.. (2024). The effect of sintering temperature on cavitation erosion in glass-ceramics based on coal fly ash. in International Journal of Environmental Science and Technology
Springer Nature., 21(7), 6065-6074.
https://doi.org/10.1007/s13762-023-05411-9

Savić V, Dojčinović M, Topalović V, Cvijović-Alagić I, Stojanović J, Matijašević S, Grujić S. The effect of sintering temperature on cavitation erosion in glass-ceramics based on coal fly ash. in International Journal of Environmental Science and Technology. 2024;21(7):6065-6074.
doi:10.1007/s13762-023-05411-9 .

Savić, Veljko, Dojčinović, Marina, Topalović, Vladimir, Cvijović-Alagić, Ivana, Stojanović, Jovica, Matijašević, Srđan, Grujić, Snežana, "The effect of sintering temperature on cavitation erosion in glass-ceramics based on coal fly ash" in International Journal of Environmental Science and Technology, 21, no. 7 (2024):6065-6074,
https://doi.org/10.1007/s13762-023-05411-9 . .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Savić, Veljko
AU  - Labus, Nebojša
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1221
AB  - The crystal growth rate of LiGe2(PO4)3 phase from lithium germanium-phosphate glass was studied. The glass have been homogenized using the previously established 
temperature-time conditions, which make it possible to remove volatile substances from the glass melt. The atomic absorption spectrophotometry (AAS) was used to determine the 
chemical content of the obtained glass and scanning electron microscope (SEM) were used to reveal the isothermal process of crystal growth. The crystal growth rates were determined 
experimentally and theoretically.
PB  - Belgrade : Association for ETRAN Society
T2  - Science of Sintering
T1  - The Crystal Growth of NASICON Phase from the Lithium Germanium Phosphate Glass
EP  - 547
IS  - 4
SP  - 539
VL  - 55
DO  - 10.2298/SOS220809022M
ER  - 

@article{
author = "Matijašević, Srđan and Topalović, Vladimir and Savić, Veljko and Labus, Nebojša and Nikolić, Jelena and Zildžović, Snežana and Grujić, Snežana",
year = "2023",
abstract = "The crystal growth rate of LiGe2(PO4)3 phase from lithium germanium-phosphate glass was studied. The glass have been homogenized using the previously established 
temperature-time conditions, which make it possible to remove volatile substances from the glass melt. The atomic absorption spectrophotometry (AAS) was used to determine the 
chemical content of the obtained glass and scanning electron microscope (SEM) were used to reveal the isothermal process of crystal growth. The crystal growth rates were determined 
experimentally and theoretically.",
publisher = "Belgrade : Association for ETRAN Society",
journal = "Science of Sintering",
title = "The Crystal Growth of NASICON Phase from the Lithium Germanium Phosphate Glass",
pages = "547-539",
number = "4",
volume = "55",
doi = "10.2298/SOS220809022M"
}

Matijašević, S., Topalović, V., Savić, V., Labus, N., Nikolić, J., Zildžović, S.,& Grujić, S.. (2023). The Crystal Growth of NASICON Phase from the Lithium Germanium Phosphate Glass. in Science of Sintering
Belgrade : Association for ETRAN Society., 55(4), 539-547.
https://doi.org/10.2298/SOS220809022M

Matijašević S, Topalović V, Savić V, Labus N, Nikolić J, Zildžović S, Grujić S. The Crystal Growth of NASICON Phase from the Lithium Germanium Phosphate Glass. in Science of Sintering. 2023;55(4):539-547.
doi:10.2298/SOS220809022M .

Matijašević, Srđan, Topalović, Vladimir, Savić, Veljko, Labus, Nebojša, Nikolić, Jelena, Zildžović, Snežana, Grujić, Snežana, "The Crystal Growth of NASICON Phase from the Lithium Germanium Phosphate Glass" in Science of Sintering, 55, no. 4 (2023):539-547,
https://doi.org/10.2298/SOS220809022M . .

TY  - CONF
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
AU  - Topalović, Vladimir
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Zildžović, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/671
AB  - This paper presents the effect of K2O content on phase composition of the nanocrystallized niobium germanate glasses. It was shown that the exothermal peak temperature, Tp, shifted toward the higher temperatures with increasing content of K2O. Such increase of K2O content causes a decrease of GeO2 content in the primary phases. The crystals below 100 nm were detected in the samples.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - XV International Mineral Processing and Recycling Conference-IMPRC 2023
T1  - Nanocrystallization of potassium niobium germanate glasses
EP  - 337
SP  - 333
ER  - 

@conference{
author = "Matijašević, Srđan and Grujić, Snežana and Topalović, Vladimir and Stojanović, Jovica and Nikolić, Jelena and Savić, Veljko and Zildžović, Snežana",
year = "2023",
abstract = "This paper presents the effect of K2O content on phase composition of the nanocrystallized niobium germanate glasses. It was shown that the exothermal peak temperature, Tp, shifted toward the higher temperatures with increasing content of K2O. Such increase of K2O content causes a decrease of GeO2 content in the primary phases. The crystals below 100 nm were detected in the samples.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "XV International Mineral Processing and Recycling Conference-IMPRC 2023",
title = "Nanocrystallization of potassium niobium germanate glasses",
pages = "337-333"
}

Matijašević, S., Grujić, S., Topalović, V., Stojanović, J., Nikolić, J., Savić, V.,& Zildžović, S.. (2023). Nanocrystallization of potassium niobium germanate glasses. in XV International Mineral Processing and Recycling Conference-IMPRC 2023
University of Belgrade, Technical Faculty in Bor., 333-337.

Matijašević S, Grujić S, Topalović V, Stojanović J, Nikolić J, Savić V, Zildžović S. Nanocrystallization of potassium niobium germanate glasses. in XV International Mineral Processing and Recycling Conference-IMPRC 2023. 2023;:333-337..

Matijašević, Srđan, Grujić, Snežana, Topalović, Vladimir, Stojanović, Jovica, Nikolić, Jelena, Savić, Veljko, Zildžović, Snežana, "Nanocrystallization of potassium niobium germanate glasses" in XV International Mineral Processing and Recycling Conference-IMPRC 2023 (2023):333-337.

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/784
AB  - Waste glass can be transformed into a foam by addition of suitable substance (foaming agent) which generated gaseous products by decomposition or reaction at temperatures above its softening temperature (corresponding to a viscosity of 106.6 Pas). This paper provides a concise overview of the latest research in the field of improving the glass foam production process. Some of the possibilities for reducing the environmental impact of glass foam production are also presented. Some of the new production techniques, new foaming agents as well as the possibility of including other solid waste in the composition of glass foams are presented. At the end, the glass foam produced in the Laboratory for glass and ceramics, Institute for Technology of Nuclear and other Mineral Raw Materials, was shown.
PB  - Belgrade : University of Belgrade, Faculty of Mining and Geology
C3  - 9th International Conference Mining and Environmental Protection MEP-23
T1  - Recycling of glass waste into foam glass: A review
EP  - 272
SP  - 267
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Đošić, Marija and Zildžović, Snežana and Grujić, Snežana",
year = "2023",
abstract = "Waste glass can be transformed into a foam by addition of suitable substance (foaming agent) which generated gaseous products by decomposition or reaction at temperatures above its softening temperature (corresponding to a viscosity of 106.6 Pas). This paper provides a concise overview of the latest research in the field of improving the glass foam production process. Some of the possibilities for reducing the environmental impact of glass foam production are also presented. Some of the new production techniques, new foaming agents as well as the possibility of including other solid waste in the composition of glass foams are presented. At the end, the glass foam produced in the Laboratory for glass and ceramics, Institute for Technology of Nuclear and other Mineral Raw Materials, was shown.",
publisher = "Belgrade : University of Belgrade, Faculty of Mining and Geology",
journal = "9th International Conference Mining and Environmental Protection MEP-23",
title = "Recycling of glass waste into foam glass: A review",
pages = "272-267"
}

Savić, V., Topalović, V., Nikolić, J., Matijašević, S., Đošić, M., Zildžović, S.,& Grujić, S.. (2023). Recycling of glass waste into foam glass: A review. in 9th International Conference Mining and Environmental Protection MEP-23
Belgrade : University of Belgrade, Faculty of Mining and Geology., 267-272.

Savić V, Topalović V, Nikolić J, Matijašević S, Đošić M, Zildžović S, Grujić S. Recycling of glass waste into foam glass: A review. in 9th International Conference Mining and Environmental Protection MEP-23. 2023;:267-272..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Đošić, Marija, Zildžović, Snežana, Grujić, Snežana, "Recycling of glass waste into foam glass: A review" in 9th International Conference Mining and Environmental Protection MEP-23 (2023):267-272.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Đošić, Marija
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/779
AB  - The purpose of this study is to investigate the influence of La2O3 addition on the crystallization characteristics of polyphosphate glasses. Differential scanning calorimetry (DSC), and X-ray diffraction (XRD) methods were used to investigate the crystallization behavior of glasses. The addition of La2O3 (1-5%), at the expense of phosphate mole fraction in polyphosphate glass, raises the characteristic temperature of glasses, and resistance to crystallization. The glasses show complex crystallization leading to the formation of several crystalline phases
PB  - Bor : Mining and Metallurgy Institute Bor
C3  - 53rd International October Conference on Mining and Metallurgy IOC 2022
T1  - The efect of La2O3 addition on the crystallization characteristics of polyphosphate glasses
EP  - 142
SP  - 139
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Savić, Veljko and Đošić, Marija and Grujić, Snežana",
year = "2022",
abstract = "The purpose of this study is to investigate the influence of La2O3 addition on the crystallization characteristics of polyphosphate glasses. Differential scanning calorimetry (DSC), and X-ray diffraction (XRD) methods were used to investigate the crystallization behavior of glasses. The addition of La2O3 (1-5%), at the expense of phosphate mole fraction in polyphosphate glass, raises the characteristic temperature of glasses, and resistance to crystallization. The glasses show complex crystallization leading to the formation of several crystalline phases",
publisher = "Bor : Mining and Metallurgy Institute Bor",
journal = "53rd International October Conference on Mining and Metallurgy IOC 2022",
title = "The efect of La2O3 addition on the crystallization characteristics of polyphosphate glasses",
pages = "142-139"
}

Topalović, V., Matijašević, S., Nikolić, J., Savić, V., Đošić, M.,& Grujić, S.. (2022). The efect of La2O3 addition on the crystallization characteristics of polyphosphate glasses. in 53rd International October Conference on Mining and Metallurgy IOC 2022
Bor : Mining and Metallurgy Institute Bor., 139-142.

Topalović V, Matijašević S, Nikolić J, Savić V, Đošić M, Grujić S. The efect of La2O3 addition on the crystallization characteristics of polyphosphate glasses. in 53rd International October Conference on Mining and Metallurgy IOC 2022. 2022;:139-142..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Savić, Veljko, Đošić, Marija, Grujić, Snežana, "The efect of La2O3 addition on the crystallization characteristics of polyphosphate glasses" in 53rd International October Conference on Mining and Metallurgy IOC 2022 (2022):139-142.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Savić, Veljko
AU  - Đošić, Marija
AU  - Vujošević, Ana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/801
AB  - The main goal of agricultural production should be the production of a sufficient amount of agricultural products with the least possible impact on the environment. In traditional agricultural production, in order to obtain a satisfactory yield, artificial fertilizers are used, which have multiple negative impacts on the environment. Glassy fertilizers are a type of fertilizer that, at least according to previous research, do not have a negative impact on the environment and the same time the use of these fertilizers yields not less than when using traditional fertilizers. Glassy fertilizers are fertilizers with controlled dissolution, they do not pollute groundwater or surface water, the pH of the soil does not change with their use, by changing the composition they can adapt to the requirements of each crop individually, etc. The paper presents three phosphate glassy fertilizers of different chemical composition, obtained at the Center for Inorganic Technologies, ITNMS. The method of obtaining of glassy fertilizers, their dissolution rates in a medium that simulates soil conditions, the changes in pH values of solutions for different dissolution times and the effect of temperature on dissolution rates are shown. Also, the results of the influence of glass fertilizers on plant cultures in real conditions are presented.
PB  - Banja Luka : University in Banja Luka, Faculty of Technology
C3  - XIV Conference of chemists, technologists and environmentalists of Republic of Srpska
T1  - Phophate glassy fertilizers
EP  - 66
SP  - 62
ER  - 

@conference{
author = "Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Savić, Veljko and Đošić, Marija and Vujošević, Ana and Grujić, Snežana",
year = "2022",
abstract = "The main goal of agricultural production should be the production of a sufficient amount of agricultural products with the least possible impact on the environment. In traditional agricultural production, in order to obtain a satisfactory yield, artificial fertilizers are used, which have multiple negative impacts on the environment. Glassy fertilizers are a type of fertilizer that, at least according to previous research, do not have a negative impact on the environment and the same time the use of these fertilizers yields not less than when using traditional fertilizers. Glassy fertilizers are fertilizers with controlled dissolution, they do not pollute groundwater or surface water, the pH of the soil does not change with their use, by changing the composition they can adapt to the requirements of each crop individually, etc. The paper presents three phosphate glassy fertilizers of different chemical composition, obtained at the Center for Inorganic Technologies, ITNMS. The method of obtaining of glassy fertilizers, their dissolution rates in a medium that simulates soil conditions, the changes in pH values of solutions for different dissolution times and the effect of temperature on dissolution rates are shown. Also, the results of the influence of glass fertilizers on plant cultures in real conditions are presented.",
publisher = "Banja Luka : University in Banja Luka, Faculty of Technology",
journal = "XIV Conference of chemists, technologists and environmentalists of Republic of Srpska",
title = "Phophate glassy fertilizers",
pages = "66-62"
}

Topalović, V., Nikolić, J., Matijašević, S., Savić, V., Đošić, M., Vujošević, A.,& Grujić, S.. (2022). Phophate glassy fertilizers. in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska
Banja Luka : University in Banja Luka, Faculty of Technology., 62-66.

Topalović V, Nikolić J, Matijašević S, Savić V, Đošić M, Vujošević A, Grujić S. Phophate glassy fertilizers. in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska. 2022;:62-66..

Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Savić, Veljko, Đošić, Marija, Vujošević, Ana, Grujić, Snežana, "Phophate glassy fertilizers" in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska (2022):62-66.

TY  - CONF
AU  - Nikolić, Jelena
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Savić, Veljko
AU  - Đošić, Marija
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/788
AB  - Fosfatna stakla imaju jedinstveno svojstvo da se mogu potpuno rastvoriti u vodenim rastvorima, a brzina rastvaranja može da se kontroliše. Proces rastvaranja stakla počinje razmenom katjona sa površine stakla sa protonima iz rastvora (H+ ili H3O+) i hidratacijom staklene mreže. Početna brzina rastvaranja je osnovna karakteristika rastvaranja stakla. Analiza početnih brzina rastvaranja fosfatnog stakla, koje je dobijeno topljenjem,  pokazuje da su brzine značajno veće u kiseloj sredini u odnosu na brzine rastvaranja u neutralnoj. Granulacija uzorka ima veći uticaj na početne brzine u neutralnoj sredini. Granulacija uzorka ne utiče na vrednost energije aktivacija početnih brzina rastvaranja u obe sredine. U neutralnoj sredini temperatura manje utiče na hidrolizu, a više na difuziju katjona, dok je u kiseloj sredini suprotno.
PB  - Belgrade : Serbian Chemical Society
C3  - 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society
T1  - Ispitivanje uticaja pH i granulacije na početnu brzinu rastvaranja fosfatnog stakla/ Investigation of the influence of pH and granulation on the initial dissolution rate of phosphate glass
EP  - 119
SP  - 119
ER  - 

@conference{
author = "Nikolić, Jelena and Topalović, Vladimir and Matijašević, Srđan and Savić, Veljko and Đošić, Marija and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "Fosfatna stakla imaju jedinstveno svojstvo da se mogu potpuno rastvoriti u vodenim rastvorima, a brzina rastvaranja može da se kontroliše. Proces rastvaranja stakla počinje razmenom katjona sa površine stakla sa protonima iz rastvora (H+ ili H3O+) i hidratacijom staklene mreže. Početna brzina rastvaranja je osnovna karakteristika rastvaranja stakla. Analiza početnih brzina rastvaranja fosfatnog stakla, koje je dobijeno topljenjem,  pokazuje da su brzine značajno veće u kiseloj sredini u odnosu na brzine rastvaranja u neutralnoj. Granulacija uzorka ima veći uticaj na početne brzine u neutralnoj sredini. Granulacija uzorka ne utiče na vrednost energije aktivacija početnih brzina rastvaranja u obe sredine. U neutralnoj sredini temperatura manje utiče na hidrolizu, a više na difuziju katjona, dok je u kiseloj sredini suprotno.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society",
title = "Ispitivanje uticaja pH i granulacije na početnu brzinu rastvaranja fosfatnog stakla/ Investigation of the influence of pH and granulation on the initial dissolution rate of phosphate glass",
pages = "119-119"
}

Nikolić, J., Topalović, V., Matijašević, S., Savić, V., Đošić, M., Zildžović, S.,& Grujić, S.. (2022). Ispitivanje uticaja pH i granulacije na početnu brzinu rastvaranja fosfatnog stakla/ Investigation of the influence of pH and granulation on the initial dissolution rate of phosphate glass. in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 119-119.

Nikolić J, Topalović V, Matijašević S, Savić V, Đošić M, Zildžović S, Grujić S. Ispitivanje uticaja pH i granulacije na početnu brzinu rastvaranja fosfatnog stakla/ Investigation of the influence of pH and granulation on the initial dissolution rate of phosphate glass. in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society. 2022;:119-119..

Nikolić, Jelena, Topalović, Vladimir, Matijašević, Srđan, Savić, Veljko, Đošić, Marija, Zildžović, Snežana, Grujić, Snežana, "Ispitivanje uticaja pH i granulacije na početnu brzinu rastvaranja fosfatnog stakla/ Investigation of the influence of pH and granulation on the initial dissolution rate of phosphate glass" in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society (2022):119-119.

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/778
AB  - The increasing production of coal fly ash waste from thermal power plants has compounded environmental and economical problems worldwide. In this research coal fly ash was mixed with glass cullet and CaCO3 and melted at T= 1500 °C. The glass was milled, pressed and sintered at T= 900 °C to obtain glass- ceramic. Obtained glass- ceramic was well sintered with low crystallinity. This material, produced from secondary raw materials, could find potential application in building industry as substitute for commercial wall and floor tiles.
PB  - Bor : Mining and Metallurgy Institute Bor
C3  - 53rd International October Conference on Mining and Metallurgy IOC 2022
T1  - Sinter-crystallization of coal fly ash based glass
EP  - 104
SP  - 101
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "The increasing production of coal fly ash waste from thermal power plants has compounded environmental and economical problems worldwide. In this research coal fly ash was mixed with glass cullet and CaCO3 and melted at T= 1500 °C. The glass was milled, pressed and sintered at T= 900 °C to obtain glass- ceramic. Obtained glass- ceramic was well sintered with low crystallinity. This material, produced from secondary raw materials, could find potential application in building industry as substitute for commercial wall and floor tiles.",
publisher = "Bor : Mining and Metallurgy Institute Bor",
journal = "53rd International October Conference on Mining and Metallurgy IOC 2022",
title = "Sinter-crystallization of coal fly ash based glass",
pages = "104-101"
}

Savić, V., Topalović, V., Nikolić, J., Matijašević, S., Zildžović, S.,& Grujić, S.. (2022). Sinter-crystallization of coal fly ash based glass. in 53rd International October Conference on Mining and Metallurgy IOC 2022
Bor : Mining and Metallurgy Institute Bor., 101-104.

Savić V, Topalović V, Nikolić J, Matijašević S, Zildžović S, Grujić S. Sinter-crystallization of coal fly ash based glass. in 53rd International October Conference on Mining and Metallurgy IOC 2022. 2022;:101-104..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Zildžović, Snežana, Grujić, Snežana, "Sinter-crystallization of coal fly ash based glass" in 53rd International October Conference on Mining and Metallurgy IOC 2022 (2022):101-104.

TY  - CONF
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Savić, Veljko
AU  - Labus, Nebojsa
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/802
AB  - The crystal growth rate of lithium germanium-phosphate glass was studied. The glasses have been homogenized using the previously established temperature-time conditions, which make it possible to remove a volatile substances from the glass melt. The AAS was used to determine the chemical content of obtained glass, the differential thermal analysis (DTA), and scanning electron microscope (SEM) were used to reveal the isothermal process of crystal growth, respectively. It has been found that the experimental determined crystal growth rate has a tendency toward of exponentially increase with an increase the temperature.
PB  - Belgrade : Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference-Advance Ceramics and Application X-New Frontiers in Multifunctional Material Science and Processing
T1  - The analysis of the crystal growth process of the lithium germanium phosphate glass
EP  - 42
SP  - 42
ER  - 

@conference{
author = "Matijašević, Srđan and Topalović, Vladimir and Savić, Veljko and Labus, Nebojsa and Nikolić, Jelena and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "The crystal growth rate of lithium germanium-phosphate glass was studied. The glasses have been homogenized using the previously established temperature-time conditions, which make it possible to remove a volatile substances from the glass melt. The AAS was used to determine the chemical content of obtained glass, the differential thermal analysis (DTA), and scanning electron microscope (SEM) were used to reveal the isothermal process of crystal growth, respectively. It has been found that the experimental determined crystal growth rate has a tendency toward of exponentially increase with an increase the temperature.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference-Advance Ceramics and Application X-New Frontiers in Multifunctional Material Science and Processing",
title = "The analysis of the crystal growth process of the lithium germanium phosphate glass",
pages = "42-42"
}

Matijašević, S., Topalović, V., Savić, V., Labus, N., Nikolić, J., Zildžović, S.,& Grujić, S.. (2022). The analysis of the crystal growth process of the lithium germanium phosphate glass. in Serbian Ceramic Society Conference-Advance Ceramics and Application X-New Frontiers in Multifunctional Material Science and Processing
Belgrade : Serbian Ceramic Society., 42-42.

Matijašević S, Topalović V, Savić V, Labus N, Nikolić J, Zildžović S, Grujić S. The analysis of the crystal growth process of the lithium germanium phosphate glass. in Serbian Ceramic Society Conference-Advance Ceramics and Application X-New Frontiers in Multifunctional Material Science and Processing. 2022;:42-42..

Matijašević, Srđan, Topalović, Vladimir, Savić, Veljko, Labus, Nebojsa, Nikolić, Jelena, Zildžović, Snežana, Grujić, Snežana, "The analysis of the crystal growth process of the lithium germanium phosphate glass" in Serbian Ceramic Society Conference-Advance Ceramics and Application X-New Frontiers in Multifunctional Material Science and Processing (2022):42-42.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/800
AB  - Global trends are moving towards a circular economy to replace the deeply grounded one linear economics and waste management. Circular economy implies and the protection of human rights through sustainable development, global security natural resources, combating climate change, energy security, insurance sufficient amounts of food, reducing inequalities, preservation of health and a cleaner environment and the rights of future generations to resources, etc. The policy of procurement of raw materials in the circular economy is focused on the use of secondary raw materials. A big challenge for modern production is to use different types of waste to obtain new products without the use of raw materials. This kind of production requires new knowledge, adaptation of existing technologies or new technologies, new jobs, etc. Large amounts of vegetative residues are produced annually by agriculture. Agricultural waste is very often incinerated or disposed of on land and is still not used.  Most of the agricultural waste ashes consist of silicon dioxide along with other oxides which may vary according to region and atmosphere of the local conditions.  This paper gives an overview of the possibilities of using agricultural waste for obtaining glass and glass ceramics.   Previous research has shown that various types of glass and glass-ceramics can be successfully obtained from agricultural waste, which can be used in construction, medicine, various composites, etc.
PB  - Banja Luka : University in Banja Luka, Faculty of Technology
C3  - XIV Conference of chemists, technologists and environmentalists of Republic of srpska
T1  - Use of agricultural waste as raw materials for obtaining glass and glass-ceramics: A review
EP  - 241
SP  - 237
ER  - 

@conference{
author = "Topalović, Vladimir and Nikolić, Jelena and Savić, Veljko and Matijašević, Srđan and Đošić, Marija and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "Global trends are moving towards a circular economy to replace the deeply grounded one linear economics and waste management. Circular economy implies and the protection of human rights through sustainable development, global security natural resources, combating climate change, energy security, insurance sufficient amounts of food, reducing inequalities, preservation of health and a cleaner environment and the rights of future generations to resources, etc. The policy of procurement of raw materials in the circular economy is focused on the use of secondary raw materials. A big challenge for modern production is to use different types of waste to obtain new products without the use of raw materials. This kind of production requires new knowledge, adaptation of existing technologies or new technologies, new jobs, etc. Large amounts of vegetative residues are produced annually by agriculture. Agricultural waste is very often incinerated or disposed of on land and is still not used.  Most of the agricultural waste ashes consist of silicon dioxide along with other oxides which may vary according to region and atmosphere of the local conditions.  This paper gives an overview of the possibilities of using agricultural waste for obtaining glass and glass ceramics.   Previous research has shown that various types of glass and glass-ceramics can be successfully obtained from agricultural waste, which can be used in construction, medicine, various composites, etc.",
publisher = "Banja Luka : University in Banja Luka, Faculty of Technology",
journal = "XIV Conference of chemists, technologists and environmentalists of Republic of srpska",
title = "Use of agricultural waste as raw materials for obtaining glass and glass-ceramics: A review",
pages = "241-237"
}

Topalović, V., Nikolić, J., Savić, V., Matijašević, S., Đošić, M., Zildžović, S.,& Grujić, S.. (2022). Use of agricultural waste as raw materials for obtaining glass and glass-ceramics: A review. in XIV Conference of chemists, technologists and environmentalists of Republic of srpska
Banja Luka : University in Banja Luka, Faculty of Technology., 237-241.

Topalović V, Nikolić J, Savić V, Matijašević S, Đošić M, Zildžović S, Grujić S. Use of agricultural waste as raw materials for obtaining glass and glass-ceramics: A review. in XIV Conference of chemists, technologists and environmentalists of Republic of srpska. 2022;:237-241..

Topalović, Vladimir, Nikolić, Jelena, Savić, Veljko, Matijašević, Srđan, Đošić, Marija, Zildžović, Snežana, Grujić, Snežana, "Use of agricultural waste as raw materials for obtaining glass and glass-ceramics: A review" in XIV Conference of chemists, technologists and environmentalists of Republic of srpska (2022):237-241.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Savić, Veljko
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/787
AB  - Staklokeramički nosači koji oponašaju strukturu kostiju dobijeni su korišćenjem poliuretanske (PU) pene i polifosfatnog stakla u prahu. Osnovno staklo je pripremljeno standardnom tehnikom izlivanja rastopa i njegovog hlađenja na sobnoj temperaturi. Kocke pene su potapane u koloidni rastvor stakla, presovane i osušene. Poliuretanska pena obložena staklenim česticama je termički obrađena i staklo je sinterovano 3 h na 620 ⁰C. Mikrostruktura, morfologija i fazni sastav pripremljenih staklokeramičkih nosača ispitivani su metodama skenirajuće elektronske mikroskopije (SEM) i rendgenske difrakcije (XRD). Dobijeni su 3D porozni staklokeramički nosači koji sadrže bioaktivne kristalne faze β-Ca3(PO4)2 i β-Ca2P2O7. Struktura sinterovanih nosača je veoma porozna, a stubovi između pora su dobro sinterovani. Dobijeni fazni sastav i mikrostruktura nosača ukazuju na mogućnost njihove primene kao bioaktivnih materijala za inženjering koštanih tkiva.
PB  - Belgrade : Serbian Chemical Society
C3  - 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society
T1  - Dobijanje poroznih 3D bioaktivnih staklokeramičkih nosača/Fabrication of porous 3D bioactive phosphate glass-ceramic scaffolds
EP  - 108
SP  - 108
ER  - 

@conference{
author = "Topalović, Vladimir and Savić, Veljko and Nikolić, Jelena and Matijašević, Srđan and Đošić, Marija and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "Staklokeramički nosači koji oponašaju strukturu kostiju dobijeni su korišćenjem poliuretanske (PU) pene i polifosfatnog stakla u prahu. Osnovno staklo je pripremljeno standardnom tehnikom izlivanja rastopa i njegovog hlađenja na sobnoj temperaturi. Kocke pene su potapane u koloidni rastvor stakla, presovane i osušene. Poliuretanska pena obložena staklenim česticama je termički obrađena i staklo je sinterovano 3 h na 620 ⁰C. Mikrostruktura, morfologija i fazni sastav pripremljenih staklokeramičkih nosača ispitivani su metodama skenirajuće elektronske mikroskopije (SEM) i rendgenske difrakcije (XRD). Dobijeni su 3D porozni staklokeramički nosači koji sadrže bioaktivne kristalne faze β-Ca3(PO4)2 i β-Ca2P2O7. Struktura sinterovanih nosača je veoma porozna, a stubovi između pora su dobro sinterovani. Dobijeni fazni sastav i mikrostruktura nosača ukazuju na mogućnost njihove primene kao bioaktivnih materijala za inženjering koštanih tkiva.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society",
title = "Dobijanje poroznih 3D bioaktivnih staklokeramičkih nosača/Fabrication of porous 3D bioactive phosphate glass-ceramic scaffolds",
pages = "108-108"
}

Topalović, V., Savić, V., Nikolić, J., Matijašević, S., Đošić, M., Zildžović, S.,& Grujić, S.. (2022). Dobijanje poroznih 3D bioaktivnih staklokeramičkih nosača/Fabrication of porous 3D bioactive phosphate glass-ceramic scaffolds. in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 108-108.

Topalović V, Savić V, Nikolić J, Matijašević S, Đošić M, Zildžović S, Grujić S. Dobijanje poroznih 3D bioaktivnih staklokeramičkih nosača/Fabrication of porous 3D bioactive phosphate glass-ceramic scaffolds. in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society. 2022;:108-108..

Topalović, Vladimir, Savić, Veljko, Nikolić, Jelena, Matijašević, Srđan, Đošić, Marija, Zildžović, Snežana, Grujić, Snežana, "Dobijanje poroznih 3D bioaktivnih staklokeramičkih nosača/Fabrication of porous 3D bioactive phosphate glass-ceramic scaffolds" in 58. Savetovanje Srpskog hemijskog društva/ 58th Meeting of the Serbian Chemical Society (2022):108-108.

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Grujić, Snežana R.
AU  - Nikolić, Jelena
AU  - Topalović, Vladimir
AU  - Savić, Veljko
AU  - Zildžović, Snežana
AU  - Labus, Nebojša
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/619
AB  - The nucleation process of lithium germanium-phosphate glass was studied to determine the temperature range of nucleation and the temperature of the maximum nucleation rate. The differential thermal analysis (DTA), and scanning electron microscope (SEM) were used to reveal the nonisothermal and isothermal process of nucleation, respectively. The crystallization process occurred at a high homogeneous nucleation rate and the spherulitic crystal growth morphology. Nanostructured samples were obtained.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Analysis of the Nucleation Process of the Lithium Germanium Phosphate Glass
EP  - 334
IS  - 3
SP  - 321
VL  - 54
DO  - 10.2298/SOS2203321M
UR  - conv_960
UR  - https://hdl.handle.net/21.15107/rcub_dais_13580
ER  - 

@article{
author = "Matijašević, Srđan and Grujić, Snežana R. and Nikolić, Jelena and Topalović, Vladimir and Savić, Veljko and Zildžović, Snežana and Labus, Nebojša",
year = "2022",
abstract = "The nucleation process of lithium germanium-phosphate glass was studied to determine the temperature range of nucleation and the temperature of the maximum nucleation rate. The differential thermal analysis (DTA), and scanning electron microscope (SEM) were used to reveal the nonisothermal and isothermal process of nucleation, respectively. The crystallization process occurred at a high homogeneous nucleation rate and the spherulitic crystal growth morphology. Nanostructured samples were obtained.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Analysis of the Nucleation Process of the Lithium Germanium Phosphate Glass",
pages = "334-321",
number = "3",
volume = "54",
doi = "10.2298/SOS2203321M",
url = "conv_960, https://hdl.handle.net/21.15107/rcub_dais_13580"
}

Matijašević, S., Grujić, S. R., Nikolić, J., Topalović, V., Savić, V., Zildžović, S.,& Labus, N.. (2022). The Analysis of the Nucleation Process of the Lithium Germanium Phosphate Glass. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 54(3), 321-334.
https://doi.org/10.2298/SOS2203321M
conv_960

Matijašević S, Grujić SR, Nikolić J, Topalović V, Savić V, Zildžović S, Labus N. The Analysis of the Nucleation Process of the Lithium Germanium Phosphate Glass. in Science of Sintering. 2022;54(3):321-334.
doi:10.2298/SOS2203321M
conv_960 .

Matijašević, Srđan, Grujić, Snežana R., Nikolić, Jelena, Topalović, Vladimir, Savić, Veljko, Zildžović, Snežana, Labus, Nebojša, "The Analysis of the Nucleation Process of the Lithium Germanium Phosphate Glass" in Science of Sintering, 54, no. 3 (2022):321-334,
https://doi.org/10.2298/SOS2203321M .,
conv_960 .

TY  - PAT
AU  - Nikolić, Jelena
AU  - Grujić, Snežana
AU  - Matijašević, Srđan
AU  - Smiljanić, Sonja
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Vujošević, Ana
AU  - Popović, Daniela
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/948
PB  - Beograd : Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Primena ultra-fosfatnog stakla za ishranu biljaka
T1  - Application of ultra-phosphate glass for plants nutrition
ER  - 

@misc{
author = "Nikolić, Jelena and Grujić, Snežana and Matijašević, Srđan and Smiljanić, Sonja and Savić, Veljko and Topalović, Vladimir and Vujošević, Ana and Popović, Daniela",
year = "2021",
publisher = "Beograd : Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Primena ultra-fosfatnog stakla za ishranu biljaka, Application of ultra-phosphate glass for plants nutrition"
}

Nikolić, J., Grujić, S., Matijašević, S., Smiljanić, S., Savić, V., Topalović, V., Vujošević, A.,& Popović, D.. (2021). Primena ultra-fosfatnog stakla za ishranu biljaka. 
Beograd : Univerzitet u Beogradu, Tehnološko-metalurški fakultet..

Nikolić J, Grujić S, Matijašević S, Smiljanić S, Savić V, Topalović V, Vujošević A, Popović D. Primena ultra-fosfatnog stakla za ishranu biljaka. 2021;..

Nikolić, Jelena, Grujić, Snežana, Matijašević, Srđan, Smiljanić, Sonja, Savić, Veljko, Topalović, Vladimir, Vujošević, Ana, Popović, Daniela, "Primena ultra-fosfatnog stakla za ishranu biljaka" (2021).

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
AU  - Savić, Veljko
AU  - Nikolić, Jelena
AU  - Smiljanić, Sonja
AU  - Zildžović, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/794
AB  - The DTA data collected for 22.5Li2O·10Al2O3∙30GeO2∙37.5P2O5 (mol%) glass sample was reported and discussed. The ease of glass formation has been studied. It was determined that the DTA exothermal temperature peaks revealed the crystallization of LiGe2(PO4)3 and GeO2 phases. The activation energy of crystallization and viscous flow was determined. The value of the Avrami exponent and reduced glass transition temperature indicates that the LiGe2(PO4)3 phase has three-dimensional growth.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIV International Mineral Processing and Recycling Conference-IMPRC 2021
T1  - Thermal properties of lithium germanate phosphate glass studied by DTA
EP  - 256
SP  - 251
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Grujić, Snežana and Savić, Veljko and Nikolić, Jelena and Smiljanić, Sonja and Zildžović, Snežana",
year = "2021",
abstract = "The DTA data collected for 22.5Li2O·10Al2O3∙30GeO2∙37.5P2O5 (mol%) glass sample was reported and discussed. The ease of glass formation has been studied. It was determined that the DTA exothermal temperature peaks revealed the crystallization of LiGe2(PO4)3 and GeO2 phases. The activation energy of crystallization and viscous flow was determined. The value of the Avrami exponent and reduced glass transition temperature indicates that the LiGe2(PO4)3 phase has three-dimensional growth.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIV International Mineral Processing and Recycling Conference-IMPRC 2021",
title = "Thermal properties of lithium germanate phosphate glass studied by DTA",
pages = "256-251"
}

Topalović, V., Matijašević, S., Grujić, S., Savić, V., Nikolić, J., Smiljanić, S.,& Zildžović, S.. (2021). Thermal properties of lithium germanate phosphate glass studied by DTA. in XIV International Mineral Processing and Recycling Conference-IMPRC 2021
Bor : University of Belgrade, Technical Faculty in Bor., 251-256.

Topalović V, Matijašević S, Grujić S, Savić V, Nikolić J, Smiljanić S, Zildžović S. Thermal properties of lithium germanate phosphate glass studied by DTA. in XIV International Mineral Processing and Recycling Conference-IMPRC 2021. 2021;:251-256..

Topalović, Vladimir, Matijašević, Srđan, Grujić, Snežana, Savić, Veljko, Nikolić, Jelena, Smiljanić, Sonja, Zildžović, Snežana, "Thermal properties of lithium germanate phosphate glass studied by DTA" in XIV International Mineral Processing and Recycling Conference-IMPRC 2021 (2021):251-256.

TY  - JOUR
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Grujić, Snežana
AU  - Zildžović, Snežana
AU  - Radulović, Aleksandra
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/597
AB  - In this study, the glass-composite was prepared using glass cullet and waste foundry sand as raw materials. The powder technology route was employed. The mixtures containing 10-50 wt% of the sand were sintered at T = 750 degrees C for t =1h. XRD and DTA analyses were performed. The chemical durability of the resulting glass-composite was determined by leaching test in HCl, H2SO4, NaOH and distilled water at T = 95 degrees C for t =1h. It was shown that the sintering process carried out without the crystallization of the glass matrix. The lowest chemical durability was determined in alkali solution of glasscomposite.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Chemical durability of sintered glass-composite prepared from glass cullet and waste foundry sand
EP  - 113
IS  - 1
SP  - 105
VL  - 27
DO  - 10.30544/477
UR  - conv_906
ER  - 

@article{
author = "Savić, Veljko and Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Grujić, Snežana and Zildžović, Snežana and Radulović, Aleksandra",
year = "2021",
abstract = "In this study, the glass-composite was prepared using glass cullet and waste foundry sand as raw materials. The powder technology route was employed. The mixtures containing 10-50 wt% of the sand were sintered at T = 750 degrees C for t =1h. XRD and DTA analyses were performed. The chemical durability of the resulting glass-composite was determined by leaching test in HCl, H2SO4, NaOH and distilled water at T = 95 degrees C for t =1h. It was shown that the sintering process carried out without the crystallization of the glass matrix. The lowest chemical durability was determined in alkali solution of glasscomposite.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Chemical durability of sintered glass-composite prepared from glass cullet and waste foundry sand",
pages = "113-105",
number = "1",
volume = "27",
doi = "10.30544/477",
url = "conv_906"
}

Savić, V., Topalović, V., Matijašević, S., Nikolić, J., Grujić, S., Zildžović, S.,& Radulović, A.. (2021). Chemical durability of sintered glass-composite prepared from glass cullet and waste foundry sand. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 27(1), 105-113.
https://doi.org/10.30544/477
conv_906

Savić V, Topalović V, Matijašević S, Nikolić J, Grujić S, Zildžović S, Radulović A. Chemical durability of sintered glass-composite prepared from glass cullet and waste foundry sand. in Metallurgical & Materials Engineering. 2021;27(1):105-113.
doi:10.30544/477
conv_906 .

Savić, Veljko, Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Grujić, Snežana, Zildžović, Snežana, Radulović, Aleksandra, "Chemical durability of sintered glass-composite prepared from glass cullet and waste foundry sand" in Metallurgical & Materials Engineering, 27, no. 1 (2021):105-113,
https://doi.org/10.30544/477 .,
conv_906 .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana R.
AU  - Matijašević, Srđan
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Popović, Daniela Z.
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/588
AB  - The crystal growth rate of La(2)SrB(10)O(19)in an undercooled melt of stoichiometric composition was studied. The crystallization of the bulk samples was performed in a single-stage regime under isothermal conditions at the selected temperatures for the different time periods. The surface crystallization was observed and in all crystallized samples, the La(2)SrB(10)O(19)crystalline phase was identified. Based on the dependence of the crystalline layer thickness on treatment time at selected temperature, crystal growth rate was obtained. The crystal growth rates were from 1.65 x 10(-8)to 2.77 x 10(-7)m s(-1)in the temperature interval (700-780 degrees C). The experimental values were compared to the calculated values using theoretical model of the crystal growth. The experimental growth rate followed the same trend as the calculated growth rate, but the experimental values were higher than the calculated.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Crystal growth of La(2)SrB(10)O(19)from undercooled melt
EP  - 1576
IS  - 4
SP  - 1569
VL  - 146
DO  - 10.1007/s10973-020-10122-1
UR  - conv_886
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana R. and Matijašević, Srđan and Stojanović, Jovica and Nikolić, Jelena and Savić, Veljko and Popović, Daniela Z.",
year = "2021",
abstract = "The crystal growth rate of La(2)SrB(10)O(19)in an undercooled melt of stoichiometric composition was studied. The crystallization of the bulk samples was performed in a single-stage regime under isothermal conditions at the selected temperatures for the different time periods. The surface crystallization was observed and in all crystallized samples, the La(2)SrB(10)O(19)crystalline phase was identified. Based on the dependence of the crystalline layer thickness on treatment time at selected temperature, crystal growth rate was obtained. The crystal growth rates were from 1.65 x 10(-8)to 2.77 x 10(-7)m s(-1)in the temperature interval (700-780 degrees C). The experimental values were compared to the calculated values using theoretical model of the crystal growth. The experimental growth rate followed the same trend as the calculated growth rate, but the experimental values were higher than the calculated.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Crystal growth of La(2)SrB(10)O(19)from undercooled melt",
pages = "1576-1569",
number = "4",
volume = "146",
doi = "10.1007/s10973-020-10122-1",
url = "conv_886"
}

Smiljanić, S., Grujić, S. R., Matijašević, S., Stojanović, J., Nikolić, J., Savić, V.,& Popović, D. Z.. (2021). Crystal growth of La(2)SrB(10)O(19)from undercooled melt. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 146(4), 1569-1576.
https://doi.org/10.1007/s10973-020-10122-1
conv_886

Smiljanić S, Grujić SR, Matijašević S, Stojanović J, Nikolić J, Savić V, Popović DZ. Crystal growth of La(2)SrB(10)O(19)from undercooled melt. in Journal of Thermal Analysis and Calorimetry. 2021;146(4):1569-1576.
doi:10.1007/s10973-020-10122-1
conv_886 .

Smiljanić, Sonja, Grujić, Snežana R., Matijašević, Srđan, Stojanović, Jovica, Nikolić, Jelena, Savić, Veljko, Popović, Daniela Z., "Crystal growth of La(2)SrB(10)O(19)from undercooled melt" in Journal of Thermal Analysis and Calorimetry, 146, no. 4 (2021):1569-1576,
https://doi.org/10.1007/s10973-020-10122-1 .,
conv_886 .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Grujić, Snežana R.
AU  - Savić, Veljko
AU  - Nikolić, Jelena
AU  - Labus, Nebojša
AU  - Zildžović, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/576
AB  - The selected lithium germanium-phosphate glass was prepared by a conventional melt-quenching technique. The XRD method was employed to confirm the glass was obtained and to reveal crystalline phases during heat treatment. The dilatometry (DIL), differential thermal analysis (DTA), and differential scanning calorimetry (DSC) were used to determine the characteristic temperatures and enthalpies of crystallization and melting of the crystalline phase. The DTA and DIL were used to obtain the viscosity curves by applying the VogelFulcher-Tammann (VFT) equation.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Thermophysical Properties of Primary Phase in Lithium Germanium Phosphate Glass
EP  - 310
IS  - 3
SP  - 301
VL  - 53
DO  - 10.2298/SOS2103301M
UR  - conv_926
ER  - 

@article{
author = "Matijašević, Srđan and Topalović, Vladimir and Grujić, Snežana R. and Savić, Veljko and Nikolić, Jelena and Labus, Nebojša and Zildžović, Snežana",
year = "2021",
abstract = "The selected lithium germanium-phosphate glass was prepared by a conventional melt-quenching technique. The XRD method was employed to confirm the glass was obtained and to reveal crystalline phases during heat treatment. The dilatometry (DIL), differential thermal analysis (DTA), and differential scanning calorimetry (DSC) were used to determine the characteristic temperatures and enthalpies of crystallization and melting of the crystalline phase. The DTA and DIL were used to obtain the viscosity curves by applying the VogelFulcher-Tammann (VFT) equation.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Thermophysical Properties of Primary Phase in Lithium Germanium Phosphate Glass",
pages = "310-301",
number = "3",
volume = "53",
doi = "10.2298/SOS2103301M",
url = "conv_926"
}

Matijašević, S., Topalović, V., Grujić, S. R., Savić, V., Nikolić, J., Labus, N.,& Zildžović, S.. (2021). The Thermophysical Properties of Primary Phase in Lithium Germanium Phosphate Glass. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 53(3), 301-310.
https://doi.org/10.2298/SOS2103301M
conv_926

Matijašević S, Topalović V, Grujić SR, Savić V, Nikolić J, Labus N, Zildžović S. The Thermophysical Properties of Primary Phase in Lithium Germanium Phosphate Glass. in Science of Sintering. 2021;53(3):301-310.
doi:10.2298/SOS2103301M
conv_926 .

Matijašević, Srđan, Topalović, Vladimir, Grujić, Snežana R., Savić, Veljko, Nikolić, Jelena, Labus, Nebojša, Zildžović, Snežana, "The Thermophysical Properties of Primary Phase in Lithium Germanium Phosphate Glass" in Science of Sintering, 53, no. 3 (2021):301-310,
https://doi.org/10.2298/SOS2103301M .,
conv_926 .

TY  - JOUR
AU  - Karamanov, Alexander
AU  - Smiljanić, Sonja
AU  - Karamanova, Emilia
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Grujić, Snežana
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/528
AB  - Sintering, crystallization and foaming of nano glass powders with composition La2O3 center dot SrO center dot 5B(2)O(3) were studied by hot stage microscopy (HSM) and simultaneous thermal analysis (DTA-TG) under non-isothermal regime at 10 degrees C/min and by optical contactless dilatometer under isothermal conditions at 700 degrees C up to 10 hours for different times. After the thermal treatments, specimens were characterized by gas pycnometry, X-ray Powder Diffraction (XRD) and Field Emission Scanning Electron Microscopes (FE-SEM). The results demonstrate that the densification completed before the crystallization process, thus forming well sintered samples. Then, during the phase formation gas is released, which leads to foaming process. After holding of 160 minutes at 700 degrees C the degree of crystallization reached about 0.8 and the foaming stopped. The obtained sample had high closed porosity and quite intriguing structure composed of two fairly different crystal arrangements. The first was "sponge-like", while the second was denser and consisted of "sheets", 10-30 nm thick. The subsequent holding led to re-crystallization, formation of larger denser zones that reached even 10-15 mu m and an increase in open porosity. These results highlight that in the case of sinter crystallization of nano powders, some intriguing features can be expected.
PB  - Elsevier, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time
VL  - 544
DO  - 10.1016/j.jnoncrysol.2020.120168
UR  - conv_885
ER  - 

@article{
author = "Karamanov, Alexander and Smiljanić, Sonja and Karamanova, Emilia and Matijašević, Srđan and Nikolić, Jelena and Savić, Veljko and Grujić, Snežana",
year = "2020",
abstract = "Sintering, crystallization and foaming of nano glass powders with composition La2O3 center dot SrO center dot 5B(2)O(3) were studied by hot stage microscopy (HSM) and simultaneous thermal analysis (DTA-TG) under non-isothermal regime at 10 degrees C/min and by optical contactless dilatometer under isothermal conditions at 700 degrees C up to 10 hours for different times. After the thermal treatments, specimens were characterized by gas pycnometry, X-ray Powder Diffraction (XRD) and Field Emission Scanning Electron Microscopes (FE-SEM). The results demonstrate that the densification completed before the crystallization process, thus forming well sintered samples. Then, during the phase formation gas is released, which leads to foaming process. After holding of 160 minutes at 700 degrees C the degree of crystallization reached about 0.8 and the foaming stopped. The obtained sample had high closed porosity and quite intriguing structure composed of two fairly different crystal arrangements. The first was "sponge-like", while the second was denser and consisted of "sheets", 10-30 nm thick. The subsequent holding led to re-crystallization, formation of larger denser zones that reached even 10-15 mu m and an increase in open porosity. These results highlight that in the case of sinter crystallization of nano powders, some intriguing features can be expected.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Non-Crystalline Solids",
title = "Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time",
volume = "544",
doi = "10.1016/j.jnoncrysol.2020.120168",
url = "conv_885"
}

Karamanov, A., Smiljanić, S., Karamanova, E., Matijašević, S., Nikolić, J., Savić, V.,& Grujić, S.. (2020). Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time. in Journal of Non-Crystalline Solids
Elsevier, Amsterdam., 544.
https://doi.org/10.1016/j.jnoncrysol.2020.120168
conv_885

Karamanov A, Smiljanić S, Karamanova E, Matijašević S, Nikolić J, Savić V, Grujić S. Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time. in Journal of Non-Crystalline Solids. 2020;544.
doi:10.1016/j.jnoncrysol.2020.120168
conv_885 .

Karamanov, Alexander, Smiljanić, Sonja, Karamanova, Emilia, Matijašević, Srđan, Nikolić, Jelena, Savić, Veljko, Grujić, Snežana, "Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time" in Journal of Non-Crystalline Solids, 544 (2020),
https://doi.org/10.1016/j.jnoncrysol.2020.120168 .,
conv_885 .

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/796
AB  - The results of laboratory scale experiments of vitrification of fly ash collected from the coal fired power plant are presented. The final glassy material was obtained by melting a mixture of ash and limestone at T= 1450 oC and quenching the melt in air. To convert the waste into useful and environmentally acceptable material the crystallization of fly ash glass was performed by powder route processing. The properties of the resultant glass-ceramic indicate a potential various application such as building materials, ceramics tiles, etc.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIII International Mineral Processing and Recycling Conference-IMPRC
T1  - Production of glass-ceramics from coal fly ash and limestone
EP  - 140
SP  - 135
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Zildžović, Snežana and Smiljanić, Sonja and Grujić, Snežana",
year = "2019",
abstract = "The results of laboratory scale experiments of vitrification of fly ash collected from the coal fired power plant are presented. The final glassy material was obtained by melting a mixture of ash and limestone at T= 1450 oC and quenching the melt in air. To convert the waste into useful and environmentally acceptable material the crystallization of fly ash glass was performed by powder route processing. The properties of the resultant glass-ceramic indicate a potential various application such as building materials, ceramics tiles, etc.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIII International Mineral Processing and Recycling Conference-IMPRC",
title = "Production of glass-ceramics from coal fly ash and limestone",
pages = "140-135"
}

Savić, V., Topalović, V., Matijašević, S., Nikolić, J., Zildžović, S., Smiljanić, S.,& Grujić, S.. (2019). Production of glass-ceramics from coal fly ash and limestone. in XIII International Mineral Processing and Recycling Conference-IMPRC
Bor : University of Belgrade, Technical Faculty in Bor., 135-140.

Savić V, Topalović V, Matijašević S, Nikolić J, Zildžović S, Smiljanić S, Grujić S. Production of glass-ceramics from coal fly ash and limestone. in XIII International Mineral Processing and Recycling Conference-IMPRC. 2019;:135-140..

Savić, Veljko, Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Zildžović, Snežana, Smiljanić, Sonja, Grujić, Snežana, "Production of glass-ceramics from coal fly ash and limestone" in XIII International Mineral Processing and Recycling Conference-IMPRC (2019):135-140.

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/781
AB  - The increasing production of fly ashes from carbon combustion in thermal power plants has compounded environmental problems worldwide. As one of promising solution the vitrification of fly ashes could be considered. For potential application chemical durability of material should be known. Dissolution of coal fly ash glass grain samples was studied. The glass was obtained by melting a mixture of coal fly ash, Na2CO3 and CaCO3 at T= 1500 oC and quenching the melt in air. The chemical durability of the glass was determined by dissolution test in distilled water, HCl and NaOH at T = 950C for t =2h. It was shown that dissolution rate of glass in distillated water and NaOH is negligible, while in HCl solution was shown significant mass loss.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 51th International October Conference on Mining and Metallurgy-IOC 2019
T1  - Dissolution of coal fly ash glass in different media
EP  - 96
SP  - 93
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Đošić, Marija and Grujić, Snežana",
year = "2019",
abstract = "The increasing production of fly ashes from carbon combustion in thermal power plants has compounded environmental problems worldwide. As one of promising solution the vitrification of fly ashes could be considered. For potential application chemical durability of material should be known. Dissolution of coal fly ash glass grain samples was studied. The glass was obtained by melting a mixture of coal fly ash, Na2CO3 and CaCO3 at T= 1500 oC and quenching the melt in air. The chemical durability of the glass was determined by dissolution test in distilled water, HCl and NaOH at T = 950C for t =2h. It was shown that dissolution rate of glass in distillated water and NaOH is negligible, while in HCl solution was shown significant mass loss.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "51th International October Conference on Mining and Metallurgy-IOC 2019",
title = "Dissolution of coal fly ash glass in different media",
pages = "96-93"
}

Savić, V., Topalović, V., Nikolić, J., Matijašević, S., Đošić, M.,& Grujić, S.. (2019). Dissolution of coal fly ash glass in different media. in 51th International October Conference on Mining and Metallurgy-IOC 2019
Bor : University of Belgrade, Technical Faculty in Bor., 93-96.

Savić V, Topalović V, Nikolić J, Matijašević S, Đošić M, Grujić S. Dissolution of coal fly ash glass in different media. in 51th International October Conference on Mining and Metallurgy-IOC 2019. 2019;:93-96..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Đošić, Marija, Grujić, Snežana, "Dissolution of coal fly ash glass in different media" in 51th International October Conference on Mining and Metallurgy-IOC 2019 (2019):93-96.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/791
AB  - Because their potential biomedical application, different types of phosphate based glasses were studied and evaluated for drug delivery applications and bone tissue engineering. The addition of lanthanum to modified apatite was found to improve its biocompatibility and lower the cytotoxicity against osteoblast. In this paper, glass-ceramic with the composition 42P2O5·40CaO·5La2O3·10Na2O·3TiO2 (mol %) was obtained by standard melt-quenching method. The raw materials used for glass synthesis were reagent grade (NH4)2HPO4, Na2CO3, CaCO3, La2CO3 and TiO2. Powder X-ray diffraction analysis confirmed the quenched melt to be vitreous. To examine the glass crystallization non-isothermal crystallization was studied using DTA. Samples were crystalized at the appropriate temperature according to the DTA analysis. The XRD technique was used to identify the phase composition of the crystallized bulk glass samples. XRD analysis of the powdered sample showed that during sintering the glass particles crystallized and the crystalline phases determined were: α-Ca2P2O7, β-Ca2P2O7, Ca10Na(PO4)7, LaP5O14, β-NaTiOPO4, Ca2P2O7∙4H2O, Ca(PO3)2, β-Ca3(PO4)2, Ca3(PO4)2, γ-Ca(PO3)2, NaCa(PO3)3. For α-Ca2P2O7, β-Ca3(PO4)2 and β-Ca2P2O7, the bioactivity, i.e. the ability to promote the formation of apatite (HAP) layer after reaction with the surrounding body fluid has been reported. The obtained phase composition of the glass-ceramic indicated its possible application as a bioactive material for  bone tissue engineering.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019
T1  - Characterization of lanthanum-doped phosphate glass
EP  - 34
SP  - 34
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Đošić, Marija and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2019",
abstract = "Because their potential biomedical application, different types of phosphate based glasses were studied and evaluated for drug delivery applications and bone tissue engineering. The addition of lanthanum to modified apatite was found to improve its biocompatibility and lower the cytotoxicity against osteoblast. In this paper, glass-ceramic with the composition 42P2O5·40CaO·5La2O3·10Na2O·3TiO2 (mol %) was obtained by standard melt-quenching method. The raw materials used for glass synthesis were reagent grade (NH4)2HPO4, Na2CO3, CaCO3, La2CO3 and TiO2. Powder X-ray diffraction analysis confirmed the quenched melt to be vitreous. To examine the glass crystallization non-isothermal crystallization was studied using DTA. Samples were crystalized at the appropriate temperature according to the DTA analysis. The XRD technique was used to identify the phase composition of the crystallized bulk glass samples. XRD analysis of the powdered sample showed that during sintering the glass particles crystallized and the crystalline phases determined were: α-Ca2P2O7, β-Ca2P2O7, Ca10Na(PO4)7, LaP5O14, β-NaTiOPO4, Ca2P2O7∙4H2O, Ca(PO3)2, β-Ca3(PO4)2, Ca3(PO4)2, γ-Ca(PO3)2, NaCa(PO3)3. For α-Ca2P2O7, β-Ca3(PO4)2 and β-Ca2P2O7, the bioactivity, i.e. the ability to promote the formation of apatite (HAP) layer after reaction with the surrounding body fluid has been reported. The obtained phase composition of the glass-ceramic indicated its possible application as a bioactive material for  bone tissue engineering.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019",
title = "Characterization of lanthanum-doped phosphate glass",
pages = "34-34"
}

Topalović, V., Matijašević, S., Nikolić, J., Đošić, M., Savić, V., Smiljanić, S.,& Grujić, S.. (2019). Characterization of lanthanum-doped phosphate glass. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019
Belgrade : Association of Metallurgical Engineers of Serbia., 34-34.

Topalović V, Matijašević S, Nikolić J, Đošić M, Savić V, Smiljanić S, Grujić S. Characterization of lanthanum-doped phosphate glass. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019. 2019;:34-34..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Đošić, Marija, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "Characterization of lanthanum-doped phosphate glass" in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019 (2019):34-34.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/782
AB  - In this paper crystallization of glass 42P2O5·40CaO·5SrO·10Na2O·3TiO2 (mol %) was studied. The glass was prepared by the standard melt-quenching method. The experiments were performed under non-isothermal conditions using the XRD and DTA methods. It was determined that the surface and volume crystallization mechanism act simultaneously in bulk glass samples. The sintered calcium phosphate glass-ceramic which contains bioactive  β-Ca3(PO4)2 and β-Ca2P2O7 phases was prepared. From the experimental data an activation energy of crystal growth is calculated Ea=126.61±2.39 KJ / mol.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 51th International October Conference on Mining and Metalurgy-IOCMM 2019
T1  - The Crystallization of Glass Samples from the System P2O5-CaO-SrO-Na2O-TiO2
EP  - 314
SP  - 311
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Đošić, Marija and Nikolić, Jelena and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2019",
abstract = "In this paper crystallization of glass 42P2O5·40CaO·5SrO·10Na2O·3TiO2 (mol %) was studied. The glass was prepared by the standard melt-quenching method. The experiments were performed under non-isothermal conditions using the XRD and DTA methods. It was determined that the surface and volume crystallization mechanism act simultaneously in bulk glass samples. The sintered calcium phosphate glass-ceramic which contains bioactive  β-Ca3(PO4)2 and β-Ca2P2O7 phases was prepared. From the experimental data an activation energy of crystal growth is calculated Ea=126.61±2.39 KJ / mol.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "51th International October Conference on Mining and Metalurgy-IOCMM 2019",
title = "The Crystallization of Glass Samples from the System P2O5-CaO-SrO-Na2O-TiO2",
pages = "314-311"
}

Topalović, V., Matijašević, S., Đošić, M., Nikolić, J., Savić, V., Smiljanić, S.,& Grujić, S.. (2019). The Crystallization of Glass Samples from the System P2O5-CaO-SrO-Na2O-TiO2. in 51th International October Conference on Mining and Metalurgy-IOCMM 2019
Bor : University of Belgrade, Technical Faculty in Bor., 311-314.

Topalović V, Matijašević S, Đošić M, Nikolić J, Savić V, Smiljanić S, Grujić S. The Crystallization of Glass Samples from the System P2O5-CaO-SrO-Na2O-TiO2. in 51th International October Conference on Mining and Metalurgy-IOCMM 2019. 2019;:311-314..

Topalović, Vladimir, Matijašević, Srđan, Đošić, Marija, Nikolić, Jelena, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "The Crystallization of Glass Samples from the System P2O5-CaO-SrO-Na2O-TiO2" in 51th International October Conference on Mining and Metalurgy-IOCMM 2019 (2019):311-314.

TY  - JOUR
AU  - Stojanović, Jovica
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana R.
AU  - Vulić, Predrag J.
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Savić, Veljko
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/513
AB  - The crystal structure of new lanthanum strontium borate glass-ceramics was refined by the Rietveld method. The results showed that La2SrB10O19 has the monoclinic crystal structure, space group C2 (No. 5) with a = 11.1170(6), b = 6.5667(3), c = 9.2363(3) angstrom,beta = 91.481 degrees, V = 674.04(7) angstrom(3), two formula units per unit-cell, and density 3.830 g cm(-3). The main building units of the crystal structure are BO4 tetrahedra and BO3 triangles. Clusters composed of [B5O12] form an infinite double layer running perpendicular to the c-axis. Lanthanum atoms, situated in [B5O12](n) layers, are coordinated with 10 oxygen atom in a form of LaO10 polyhedra, while Sr atoms, located between [B5O12](n) layers, are coordinated with 8 oxygen atoms in a form of SrO8 polyhedra. Microstructural measurements contain both crystallite domain sizes and microstrain calculations obtained by the Warren Averbach and the simplified integral-breadth methods.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics
EP  - 399
IS  - 4
SP  - 389
VL  - 51
DO  - 10.2298/SOS1904389S
UR  - conv_873
ER  - 

@article{
author = "Stojanović, Jovica and Smiljanić, Sonja and Grujić, Snežana R. and Vulić, Predrag J. and Matijašević, Srđan and Nikolić, Jelena and Savić, Veljko",
year = "2019",
abstract = "The crystal structure of new lanthanum strontium borate glass-ceramics was refined by the Rietveld method. The results showed that La2SrB10O19 has the monoclinic crystal structure, space group C2 (No. 5) with a = 11.1170(6), b = 6.5667(3), c = 9.2363(3) angstrom,beta = 91.481 degrees, V = 674.04(7) angstrom(3), two formula units per unit-cell, and density 3.830 g cm(-3). The main building units of the crystal structure are BO4 tetrahedra and BO3 triangles. Clusters composed of [B5O12] form an infinite double layer running perpendicular to the c-axis. Lanthanum atoms, situated in [B5O12](n) layers, are coordinated with 10 oxygen atom in a form of LaO10 polyhedra, while Sr atoms, located between [B5O12](n) layers, are coordinated with 8 oxygen atoms in a form of SrO8 polyhedra. Microstructural measurements contain both crystallite domain sizes and microstrain calculations obtained by the Warren Averbach and the simplified integral-breadth methods.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics",
pages = "399-389",
number = "4",
volume = "51",
doi = "10.2298/SOS1904389S",
url = "conv_873"
}

Stojanović, J., Smiljanić, S., Grujić, S. R., Vulić, P. J., Matijašević, S., Nikolić, J.,& Savić, V.. (2019). Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(4), 389-399.
https://doi.org/10.2298/SOS1904389S
conv_873

Stojanović J, Smiljanić S, Grujić SR, Vulić PJ, Matijašević S, Nikolić J, Savić V. Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics. in Science of Sintering. 2019;51(4):389-399.
doi:10.2298/SOS1904389S
conv_873 .

Stojanović, Jovica, Smiljanić, Sonja, Grujić, Snežana R., Vulić, Predrag J., Matijašević, Srđan, Nikolić, Jelena, Savić, Veljko, "Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics" in Science of Sintering, 51, no. 4 (2019):389-399,
https://doi.org/10.2298/SOS1904389S .,
conv_873 .

TY  - JOUR
AU  - Vujošević, Ana
AU  - Matijašević, Srđan
AU  - Smiljanić, Sonja
AU  - Nikolić, Jelena
AU  - Zečević, Bogoljub
AU  - Topalović, Vladimir
AU  - Savić, Veljko
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/495
AB  - Polifosfatno staklo, u kome je molski odnos (M2O + MO)/P2O5 >1, koje sadrži i mikroelemente Zn2+, Mn2+, Fe3+ i Cu2+, korišćeno je u supstratu za proizvodnju rasada cveća i povrća. Eksperimenti su izvedeni u stakleniku na Poljoprivrednom fakultetu u Beogradu i u laboratorijama ITNMS. Ispitivano je ponašanje polifosfatnog stakla prilikom rastvaranja u dejonizovanoj vodi i 2% rastvoru limunske kiseline na temperaturama od 20, 30, 37 i 50 °C. Ispitan je uticaj vremena rastvaranja na normalizovani gubitak mase (fm) i normalizovane koncentracije jona (fi). Određene su i konstante brzina rastvaranja(kw-dejonizovana voda, kc -2% rastvor limunske kiseline). Vrednosti kc su veće od vrednosti za kw, što potvrđuje uticaj rastvarača i temperature na proces rastvaranja. Rezultati su pokazali pozitivan efekat polifosfatnog stakla na rast i kvalitet ispitivanih biljaka. Primenjena doza polifosfatnog stakla od 1 gl-1 pokazala je najbolji efekat na rast ispitivanih biljaka-rasada.
AB  - Due to the dissolution properties the phosphate glasses can be promising materials for the development of new ecologically safe fertilizers. The complex polyphosphate glass with a molar ratio (M2O + MO)/P2O5 >1 and addition of microelements Zn2+, Mn2+, Fe3+ and Cu2+ were used in substrate for production of flower and vegetables seedlings. Dissolution tests were conducted in deionized water and 2% citric acid. The effects of the reaction time on the normalized glass mass loss (fm) and the normalized concentrations of the ions (fi) at 20, 30, 37 and 50°C were determined. Dissolution rate constants (kw - deionized water, kc -2% citric acid) were also determined (kw-0.0028-0.0094 gm-2, kc-0.029-0.011 gm-2). Values of kc were higher than those of kw, which confirms a significant effect of solvent type and temperature on the dissolution kinetics of glass. The experiments with plants (one vegetable and one flower) showed that the addition of phosphate glass caused an increase in yield and quality of plants. The applied dose of polyphosphate glass of 1gl-1 showed the best effect on the growth of the examined plant seedlings.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća
T1  - Polyphosphate glass as fertilizer for plant seedlings
EP  - 104
IS  - 1
SP  - 96
VL  - 60
DO  - 10.5937/zasmat1901096V
UR  - conv_159
ER  - 

@article{
author = "Vujošević, Ana and Matijašević, Srđan and Smiljanić, Sonja and Nikolić, Jelena and Zečević, Bogoljub and Topalović, Vladimir and Savić, Veljko",
year = "2019",
abstract = "Polifosfatno staklo, u kome je molski odnos (M2O + MO)/P2O5 >1, koje sadrži i mikroelemente Zn2+, Mn2+, Fe3+ i Cu2+, korišćeno je u supstratu za proizvodnju rasada cveća i povrća. Eksperimenti su izvedeni u stakleniku na Poljoprivrednom fakultetu u Beogradu i u laboratorijama ITNMS. Ispitivano je ponašanje polifosfatnog stakla prilikom rastvaranja u dejonizovanoj vodi i 2% rastvoru limunske kiseline na temperaturama od 20, 30, 37 i 50 °C. Ispitan je uticaj vremena rastvaranja na normalizovani gubitak mase (fm) i normalizovane koncentracije jona (fi). Određene su i konstante brzina rastvaranja(kw-dejonizovana voda, kc -2% rastvor limunske kiseline). Vrednosti kc su veće od vrednosti za kw, što potvrđuje uticaj rastvarača i temperature na proces rastvaranja. Rezultati su pokazali pozitivan efekat polifosfatnog stakla na rast i kvalitet ispitivanih biljaka. Primenjena doza polifosfatnog stakla od 1 gl-1 pokazala je najbolji efekat na rast ispitivanih biljaka-rasada., Due to the dissolution properties the phosphate glasses can be promising materials for the development of new ecologically safe fertilizers. The complex polyphosphate glass with a molar ratio (M2O + MO)/P2O5 >1 and addition of microelements Zn2+, Mn2+, Fe3+ and Cu2+ were used in substrate for production of flower and vegetables seedlings. Dissolution tests were conducted in deionized water and 2% citric acid. The effects of the reaction time on the normalized glass mass loss (fm) and the normalized concentrations of the ions (fi) at 20, 30, 37 and 50°C were determined. Dissolution rate constants (kw - deionized water, kc -2% citric acid) were also determined (kw-0.0028-0.0094 gm-2, kc-0.029-0.011 gm-2). Values of kc were higher than those of kw, which confirms a significant effect of solvent type and temperature on the dissolution kinetics of glass. The experiments with plants (one vegetable and one flower) showed that the addition of phosphate glass caused an increase in yield and quality of plants. The applied dose of polyphosphate glass of 1gl-1 showed the best effect on the growth of the examined plant seedlings.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća, Polyphosphate glass as fertilizer for plant seedlings",
pages = "104-96",
number = "1",
volume = "60",
doi = "10.5937/zasmat1901096V",
url = "conv_159"
}

Vujošević, A., Matijašević, S., Smiljanić, S., Nikolić, J., Zečević, B., Topalović, V.,& Savić, V.. (2019). Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 60(1), 96-104.
https://doi.org/10.5937/zasmat1901096V
conv_159

Vujošević A, Matijašević S, Smiljanić S, Nikolić J, Zečević B, Topalović V, Savić V. Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća. in Zaštita materijala. 2019;60(1):96-104.
doi:10.5937/zasmat1901096V
conv_159 .

Vujošević, Ana, Matijašević, Srđan, Smiljanić, Sonja, Nikolić, Jelena, Zečević, Bogoljub, Topalović, Vladimir, Savić, Veljko, "Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća" in Zaštita materijala, 60, no. 1 (2019):96-104,
https://doi.org/10.5937/zasmat1901096V .,
conv_159 .

TY  - CONF
AU  - Savić, Veljko
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Zildžović, Snežana
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/745
AB  - The nucleation of powder glass from the system Li2O-Al2O3-GeO2-P2O5 was studied. The investigations were performed under non-isothermal conditions using the  DTA method. The field of nucleation is determined. It was observed that there is possibility of simultaneous nucleation and crystal growth in glass. Dependence (Tp-1)max of Tn is linear for studied glass system.
PB  - Bor : Mining and Metallurgy Institute Bor
C3  - 50th International October Conference on Mining and Metallurgy-IOCMM 2018
T1  - Non-isothermal analysis of nucleation the Li2O-GeO2-Al2O3-P2O5 glass
EP  - 222
SP  - 219
ER  - 

@conference{
author = "Savić, Veljko and Matijašević, Srđan and Topalović, Vladimir and Zildžović, Snežana and Smiljanić, Sonja and Grujić, Snežana",
year = "2018",
abstract = "The nucleation of powder glass from the system Li2O-Al2O3-GeO2-P2O5 was studied. The investigations were performed under non-isothermal conditions using the  DTA method. The field of nucleation is determined. It was observed that there is possibility of simultaneous nucleation and crystal growth in glass. Dependence (Tp-1)max of Tn is linear for studied glass system.",
publisher = "Bor : Mining and Metallurgy Institute Bor",
journal = "50th International October Conference on Mining and Metallurgy-IOCMM 2018",
title = "Non-isothermal analysis of nucleation the Li2O-GeO2-Al2O3-P2O5 glass",
pages = "222-219"
}

Savić, V., Matijašević, S., Topalović, V., Zildžović, S., Smiljanić, S.,& Grujić, S.. (2018). Non-isothermal analysis of nucleation the Li2O-GeO2-Al2O3-P2O5 glass. in 50th International October Conference on Mining and Metallurgy-IOCMM 2018
Bor : Mining and Metallurgy Institute Bor., 219-222.

Savić V, Matijašević S, Topalović V, Zildžović S, Smiljanić S, Grujić S. Non-isothermal analysis of nucleation the Li2O-GeO2-Al2O3-P2O5 glass. in 50th International October Conference on Mining and Metallurgy-IOCMM 2018. 2018;:219-222..

Savić, Veljko, Matijašević, Srđan, Topalović, Vladimir, Zildžović, Snežana, Smiljanić, Sonja, Grujić, Snežana, "Non-isothermal analysis of nucleation the Li2O-GeO2-Al2O3-P2O5 glass" in 50th International October Conference on Mining and Metallurgy-IOCMM 2018 (2018):219-222.