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  - Savić, Veljko
AU  - Grujić, Snežana
PY  - 2023
UR  - https://www.clean-circle.eu/%D1%81%D1%8A%D0%B1%D0%B8%D1%82%D0%B8%D1%8F/358-clean-circle-conference-vgwiii
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1219
AB  - Foam glass is a lightweight and high-strength material that can be used for thermal and acoustic insulation. Foam glass with suitable properties for use as an insulating material was prepared using waste flat glass, a glass waste not normally used for the production of glass foam, and sugar beet factory lime (S), a CaCO3-rich waste, as a novel foaming agent.Three mixtures were prepared: Glass powder mixed with S (FG-S), glass powder mixed with S and borax (FG-S-B), and glass powder mixed with S and water glass (FG-S-WG). The mixtures were homogenized, pressed into pellets in a hydraulic press, and foamed at 800 °C for 30 min. The prepared samples were characterized mechanically, thermally, and microstructurally. All samples exhibit very low crystallinity. FG-B has the lowest total porosity but much higher compressive strength than FG-S and FG-S-WG. In addition to the total porosity, the pore size distribution of the samples also has a strong influence on the compressive strength. FG-S-B has smaller pores compared to FG-S and FG-S-WG, where the intense foaming of S and water glass leads to the rupture of the pore walls and their coalescence. The thermal conductivity follows the same trends as the total porosity. FG-S and FG-S- WG have a thermal conductivity of 0.044 W/m.K and FG-B has 0.059 W/m.K. All samples have good thermal properties as insulators, but FG-S-WG has poor mechanical properties.
C3  - Vitrification and geopolimerization of waste for intertizing and/or recycling
T1  - Foam glasses made from waste flat glasses and sugar beet factory lime with the addition of borax and water glass
ER  - 

@conference{
author = "Savić, Veljko and Grujić, Snežana",
year = "2023",
abstract = "Foam glass is a lightweight and high-strength material that can be used for thermal and acoustic insulation. Foam glass with suitable properties for use as an insulating material was prepared using waste flat glass, a glass waste not normally used for the production of glass foam, and sugar beet factory lime (S), a CaCO3-rich waste, as a novel foaming agent.Three mixtures were prepared: Glass powder mixed with S (FG-S), glass powder mixed with S and borax (FG-S-B), and glass powder mixed with S and water glass (FG-S-WG). The mixtures were homogenized, pressed into pellets in a hydraulic press, and foamed at 800 °C for 30 min. The prepared samples were characterized mechanically, thermally, and microstructurally. All samples exhibit very low crystallinity. FG-B has the lowest total porosity but much higher compressive strength than FG-S and FG-S-WG. In addition to the total porosity, the pore size distribution of the samples also has a strong influence on the compressive strength. FG-S-B has smaller pores compared to FG-S and FG-S-WG, where the intense foaming of S and water glass leads to the rupture of the pore walls and their coalescence. The thermal conductivity follows the same trends as the total porosity. FG-S and FG-S- WG have a thermal conductivity of 0.044 W/m.K and FG-B has 0.059 W/m.K. All samples have good thermal properties as insulators, but FG-S-WG has poor mechanical properties.",
journal = "Vitrification and geopolimerization of waste for intertizing and/or recycling",
title = "Foam glasses made from waste flat glasses and sugar beet factory lime with the addition of borax and water glass"
}

Savić, V.,& Grujić, S.. (2023). Foam glasses made from waste flat glasses and sugar beet factory lime with the addition of borax and water glass. in Vitrification and geopolimerization of waste for intertizing and/or recycling.

Savić V, Grujić S. Foam glasses made from waste flat glasses and sugar beet factory lime with the addition of borax and water glass. in Vitrification and geopolimerization of waste for intertizing and/or recycling. 2023;..

Savić, Veljko, Grujić, Snežana, "Foam glasses made from waste flat glasses and sugar beet factory lime with the addition of borax and water glass" in Vitrification and geopolimerization of waste for intertizing and/or recycling (2023).

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  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Savić, Veljko
AU  - Nikolić, Jelena
AU  - Stojanović, Jovica
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/685
AB  - The essence of this paper is to present the effect of adding TiO2 and SrO to the crystallization characteristics of polyphosphate glasses. The crystallization of glasses has been studied by using DTA, HSM and XRD methods. Sintered phosphate glass-ceramics containing bioactive β-CaP2O6 and β-Ca3(PO4)2 phases were successfully prepared. The increasing presence of Sr (1-5 %), as well as Ti at the expense of phosphate mole fraction in polyphosphate bioactive glass increases the density of these glasses, transformation temperature and resistance to crystallization.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 30th International Conference Ecological Truth & Environmental Research – EcoTER’23
T1  - Crystallization characteristics of bioactive polyphosphate glasses
EP  - 604
SP  - 599
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Savić, Veljko and Nikolić, Jelena and Stojanović, Jovica and Zildžović, Snežana and Grujić, Snežana",
year = "2023",
abstract = "The essence of this paper is to present the effect of adding TiO2 and SrO to the crystallization characteristics of polyphosphate glasses. The crystallization of glasses has been studied by using DTA, HSM and XRD methods. Sintered phosphate glass-ceramics containing bioactive β-CaP2O6 and β-Ca3(PO4)2 phases were successfully prepared. The increasing presence of Sr (1-5 %), as well as Ti at the expense of phosphate mole fraction in polyphosphate bioactive glass increases the density of these glasses, transformation temperature and resistance to crystallization.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "30th International Conference Ecological Truth & Environmental Research – EcoTER’23",
title = "Crystallization characteristics of bioactive polyphosphate glasses",
pages = "604-599"
}

Topalović, V., Matijašević, S., Savić, V., Nikolić, J., Stojanović, J., Zildžović, S.,& Grujić, S.. (2023). Crystallization characteristics of bioactive polyphosphate glasses. in 30th International Conference Ecological Truth & Environmental Research – EcoTER’23
Bor : University of Belgrade, Technical Faculty in Bor., 599-604.

Topalović V, Matijašević S, Savić V, Nikolić J, Stojanović J, Zildžović S, Grujić S. Crystallization characteristics of bioactive polyphosphate glasses. in 30th International Conference Ecological Truth & Environmental Research – EcoTER’23. 2023;:599-604..

Topalović, Vladimir, Matijašević, Srđan, Savić, Veljko, Nikolić, Jelena, Stojanović, Jovica, Zildžović, Snežana, Grujić, Snežana, "Crystallization characteristics of bioactive polyphosphate glasses" in 30th International Conference Ecological Truth & Environmental Research – EcoTER’23 (2023):599-604.

TY  - JOUR
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Jevtić, Sanja
AU  - Manić, Nebojša
AU  - Komatina, Mirko
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/821
AB  - Great waste production alongside limited natural resources represents huge environmental and economic problems worldwide. Sustainable waste management and industrial production can reduce pollution and gain some economic benefits. Eco-friendly thermal insulators such as foam glasses can be produced using secondary raw materials in open-loop recycling. Foam glasses were successfully produced using green bottle glass and sugar beet factory lime (SBFL), CaCO3-rich waste as a novel foaming agent. Glass powder was mixed with different amount of SBFL, uniaxially pressed at 20 MPa, and sintered at different temperatures. The influence of sintering temperature and the addition of a foaming agent was examined. Obtained samples were mechanically, thermally, and microstructurally characterized. Results showed that samples sintered at 800 °C have the best properties.  Obtained  foam glasses can be used in a variety of industries where thermal insulation, non-flammability, and non-toxic materials are required.
PB  - On Ching Lo
T2  - Heliyon
T1  - Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent
IS  - 7
VL  - 9
DO  - 10.1016/j.heliyon.2023.e17664
ER  - 

@article{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Jevtić, Sanja and Manić, Nebojša and Komatina, Mirko and Matijašević, Srđan and Grujić, Snežana",
year = "2023",
abstract = "Great waste production alongside limited natural resources represents huge environmental and economic problems worldwide. Sustainable waste management and industrial production can reduce pollution and gain some economic benefits. Eco-friendly thermal insulators such as foam glasses can be produced using secondary raw materials in open-loop recycling. Foam glasses were successfully produced using green bottle glass and sugar beet factory lime (SBFL), CaCO3-rich waste as a novel foaming agent. Glass powder was mixed with different amount of SBFL, uniaxially pressed at 20 MPa, and sintered at different temperatures. The influence of sintering temperature and the addition of a foaming agent was examined. Obtained samples were mechanically, thermally, and microstructurally characterized. Results showed that samples sintered at 800 °C have the best properties.  Obtained  foam glasses can be used in a variety of industries where thermal insulation, non-flammability, and non-toxic materials are required.",
publisher = "On Ching Lo",
journal = "Heliyon",
title = "Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent",
number = "7",
volume = "9",
doi = "10.1016/j.heliyon.2023.e17664"
}

Savić, V., Topalović, V., Nikolić, J., Jevtić, S., Manić, N., Komatina, M., Matijašević, S.,& Grujić, S.. (2023). Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent. in Heliyon
On Ching Lo., 9(7).
https://doi.org/10.1016/j.heliyon.2023.e17664

Savić V, Topalović V, Nikolić J, Jevtić S, Manić N, Komatina M, Matijašević S, Grujić S. Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent. in Heliyon. 2023;9(7).
doi:10.1016/j.heliyon.2023.e17664 .

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Jevtić, Sanja, Manić, Nebojša, Komatina, Mirko, Matijašević, Srđan, Grujić, Snežana, "Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent" in Heliyon, 9, no. 7 (2023),
https://doi.org/10.1016/j.heliyon.2023.e17664 . .

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/785
AB  - Open loop glass recycling is a process where the glass is recycled into a new product. Glass recycling helps reduce landfill waste. Glass takes up significant space in landfills and does not decompose. In many countries, landfills are filling up faster than we can create new ones. Recycling glass reduces the volume of waste, and increases the lifespan of landfills. One of examples of open loop recycling of glass is glass foam produciton. Glass foam production is a process that involves the creation of a light-weight glass material with a foam-like consistency. This type of glass is made by mixing a foaming agent with glass powder and heating to temperatures where decomposition of a foaming agent and sintering of glass happens. This results in the creation of a material that is light, strong, and has thermally-insulating properties. Milled flat glass was mixed with sugar beet factory lime, a CaCO3 – rich waste wich has role of a foaming agent, in order to enter 5% CaCO3 in mixture and pressed at 20 MPa in hydraulic press. Raw pellets were sintered at 800 °C for 30 min. In obtained glass foam phase composition, pore size distribution, compressive strength and thermal conducitivity were determined. Glass foam is emerging as a flexible, cost-effective, and sustainable material that can be utilized in numerous applications to promote sustainable development. Its features such as high insulation capacity, lightweight, and durability make it an ideal material for a wide range of industries.
PB  - Belgrade : Materials Research Society of Serbia
C3  - THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023
T1  - Recycling of flat glass for glass foam production
EP  - 98
SP  - 98
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Đošić, Marija and Matijašević, Srđan and Grujić, Snežana",
year = "2023",
abstract = "Open loop glass recycling is a process where the glass is recycled into a new product. Glass recycling helps reduce landfill waste. Glass takes up significant space in landfills and does not decompose. In many countries, landfills are filling up faster than we can create new ones. Recycling glass reduces the volume of waste, and increases the lifespan of landfills. One of examples of open loop recycling of glass is glass foam produciton. Glass foam production is a process that involves the creation of a light-weight glass material with a foam-like consistency. This type of glass is made by mixing a foaming agent with glass powder and heating to temperatures where decomposition of a foaming agent and sintering of glass happens. This results in the creation of a material that is light, strong, and has thermally-insulating properties. Milled flat glass was mixed with sugar beet factory lime, a CaCO3 – rich waste wich has role of a foaming agent, in order to enter 5% CaCO3 in mixture and pressed at 20 MPa in hydraulic press. Raw pellets were sintered at 800 °C for 30 min. In obtained glass foam phase composition, pore size distribution, compressive strength and thermal conducitivity were determined. Glass foam is emerging as a flexible, cost-effective, and sustainable material that can be utilized in numerous applications to promote sustainable development. Its features such as high insulation capacity, lightweight, and durability make it an ideal material for a wide range of industries.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023",
title = "Recycling of flat glass for glass foam production",
pages = "98-98"
}

Savić, V., Topalović, V., Nikolić, J., Đošić, M., Matijašević, S.,& Grujić, S.. (2023). Recycling of flat glass for glass foam production. in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023
Belgrade : Materials Research Society of Serbia., 98-98.

Savić V, Topalović V, Nikolić J, Đošić M, Matijašević S, Grujić S. Recycling of flat glass for glass foam production. in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023. 2023;:98-98..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Đošić, Marija, Matijašević, Srđan, Grujić, Snežana, "Recycling of flat glass for glass foam production" in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023 (2023):98-98.

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  - Nikolić, Jelena
AU  - Topalović, Vladimir
AU  - Đošić, Marija
AU  - Savić, Veljko
AU  - Obradović, Milena
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/792
AB  - This paper shows the dissolution behavior of polyphosphate glass in demineralized water and 2% citric acid solution at temperatures: 15, 20, 30, 37 and 50 °C. The influence of the solvent type on the diffusion coefficients of the modifying cations, under static conditions, is also presented. The diffusion coefficients, determined from concentration profiles of the modifying cations, are calculated to be in the range of 0.27 to 350x10-14 m2/h for dissolution in demineralized water, and in the range of 3.6 to 148x10-12 m2/h for the dissolution in 2% citric acid solution. The values of activation energy of cations diffusion in demineralized water are in the range from 68.32 to 105.41 kJ/mol, while for 2% citric acid solution they are in the range from 39.28 to 55.34 kJ/mol.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Dissolution  of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures
EP  - 236
SP  - 231
ER  - 

@conference{
author = "Nikolić, Jelena and Topalović, Vladimir and Đošić, Marija and Savić, Veljko and Obradović, Milena and Matijašević, Srđan and Grujić, Snežana",
year = "2023",
abstract = "This paper shows the dissolution behavior of polyphosphate glass in demineralized water and 2% citric acid solution at temperatures: 15, 20, 30, 37 and 50 °C. The influence of the solvent type on the diffusion coefficients of the modifying cations, under static conditions, is also presented. The diffusion coefficients, determined from concentration profiles of the modifying cations, are calculated to be in the range of 0.27 to 350x10-14 m2/h for dissolution in demineralized water, and in the range of 3.6 to 148x10-12 m2/h for the dissolution in 2% citric acid solution. The values of activation energy of cations diffusion in demineralized water are in the range from 68.32 to 105.41 kJ/mol, while for 2% citric acid solution they are in the range from 39.28 to 55.34 kJ/mol.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Dissolution  of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures",
pages = "236-231"
}

Nikolić, J., Topalović, V., Đošić, M., Savić, V., Obradović, M., Matijašević, S.,& Grujić, S.. (2023). Dissolution  of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 231-236.

Nikolić J, Topalović V, Đošić M, Savić V, Obradović M, Matijašević S, Grujić S. Dissolution  of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:231-236..

Nikolić, Jelena, Topalović, Vladimir, Đošić, Marija, Savić, Veljko, Obradović, Milena, Matijašević, Srđan, Grujić, Snežana, "Dissolution  of polyphosphate glass: Impact of pH on diffusion coefficients of modifying cations at low temperatures" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):231-236.

TY  - JOUR
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Stojanović, Jovica
AU  - Karamanov, Alexander
AU  - Grujić, Snežana
AU  - Jevtić, Sanja
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/650
AB  - The goal of this research is to investigate the effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of polyphosphate glasses. Differential scanning calorimetry (DSC), hot stage microscopy (HSM), X-ray diffraction (XRD), and scanning electron microscopy (SEM) methods were used to investigate the crystallization and sintering behaviors of glasses. The addition of SrO and La2O3 (1 or 5%), at the expense of phosphate mole fraction in polyphosphate bioactive glass, raises the characteristic temperature of glasses, and resistance to crystallization. Furthermore, the temperature of maximal shrinkage increases with the addition of SrO and La2O3. Surface crystallization is the dominant mechanism of crystallization in all samples. All glasses show complex crystallization leading to the formation of several crystalline phases. Sintered phosphate glass-ceramic containing bioactive beta-CaP2O6, alpha-Ca-3(PO4)(2,) and beta-Ca-3(PO4)(2) phases were successfully prepared.
PB  - Dordrecht : Springer
T2  - Journal of Thermal Analysis and Calorimetry
T1  - The effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of distinct polyphosphate glasses
EP  - 732
EP  - 
IS  - 3
SP  - 721
VL  - 148
DO  - 10.1007/s10973-022-11777-8
UR  - conv_958
ER  - 

@article{
author = "Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Stojanović, Jovica and Karamanov, Alexander and Grujić, Snežana and Jevtić, Sanja",
year = "2023",
abstract = "The goal of this research is to investigate the effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of polyphosphate glasses. Differential scanning calorimetry (DSC), hot stage microscopy (HSM), X-ray diffraction (XRD), and scanning electron microscopy (SEM) methods were used to investigate the crystallization and sintering behaviors of glasses. The addition of SrO and La2O3 (1 or 5%), at the expense of phosphate mole fraction in polyphosphate bioactive glass, raises the characteristic temperature of glasses, and resistance to crystallization. Furthermore, the temperature of maximal shrinkage increases with the addition of SrO and La2O3. Surface crystallization is the dominant mechanism of crystallization in all samples. All glasses show complex crystallization leading to the formation of several crystalline phases. Sintered phosphate glass-ceramic containing bioactive beta-CaP2O6, alpha-Ca-3(PO4)(2,) and beta-Ca-3(PO4)(2) phases were successfully prepared.",
publisher = "Dordrecht : Springer",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "The effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of distinct polyphosphate glasses",
pages = "732--721",
number = "3",
volume = "148",
doi = "10.1007/s10973-022-11777-8",
url = "conv_958"
}

Topalović, V., Nikolić, J., Matijašević, S., Stojanović, J., Karamanov, A., Grujić, S.,& Jevtić, S.. (2023). The effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of distinct polyphosphate glasses. in Journal of Thermal Analysis and Calorimetry
Dordrecht : Springer., 148(3), 721-732.
https://doi.org/10.1007/s10973-022-11777-8
conv_958

Topalović V, Nikolić J, Matijašević S, Stojanović J, Karamanov A, Grujić S, Jevtić S. The effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of distinct polyphosphate glasses. in Journal of Thermal Analysis and Calorimetry. 2023;148(3):721-732.
doi:10.1007/s10973-022-11777-8
conv_958 .

Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Stojanović, Jovica, Karamanov, Alexander, Grujić, Snežana, Jevtić, Sanja, "The effect of SrO and La2O3 addition on the crystallization characteristics and sintering behavior of distinct polyphosphate glasses" in Journal of Thermal Analysis and Calorimetry, 148, no. 3 (2023):721-732,
https://doi.org/10.1007/s10973-022-11777-8 .,
conv_958 .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/780
AB  - Potassium germanate glass with the molar ratio 30K2O·34Nb2O·36GeO2 have been synthesized by the standard melt-quenching method. The crystallization behavior under the non-isothermal crystallization conditions was investigated by the DTA and XRD methods. The results showed that this glass exposed a complex primary crystallization.
PB  - Bor : Mining and Metallurgy Institute Bor
T2  - 53rd International October Conference on Mining and Metallurgy IOC 2022
T1  - Complex crystallization of the potassium-niobium-germanate system
EP  - 100
SP  - 97
ER  - 

@article{
author = "Matijašević, Srđan and Savić, Veljko and Topalović, Vladimir and Stojanović, Jovica and Nikolić, Jelena and Zildžović, Snežana and Grujić, Snežana",
year = "2022",
abstract = "Potassium germanate glass with the molar ratio 30K2O·34Nb2O·36GeO2 have been synthesized by the standard melt-quenching method. The crystallization behavior under the non-isothermal crystallization conditions was investigated by the DTA and XRD methods. The results showed that this glass exposed a complex primary crystallization.",
publisher = "Bor : Mining and Metallurgy Institute Bor",
journal = "53rd International October Conference on Mining and Metallurgy IOC 2022",
title = "Complex crystallization of the potassium-niobium-germanate system",
pages = "100-97"
}

Matijašević, S., Savić, V., Topalović, V., Stojanović, J., Nikolić, J., Zildžović, S.,& Grujić, S.. (2022). Complex crystallization of the potassium-niobium-germanate system. in 53rd International October Conference on Mining and Metallurgy IOC 2022
Bor : Mining and Metallurgy Institute Bor., 97-100.

Matijašević S, Savić V, Topalović V, Stojanović J, Nikolić J, Zildžović S, Grujić S. Complex crystallization of the potassium-niobium-germanate system. in 53rd International October Conference on Mining and Metallurgy IOC 2022. 2022;:97-100..

Matijašević, Srđan, Savić, Veljko, Topalović, Vladimir, Stojanović, Jovica, Nikolić, Jelena, Zildžović, Snežana, Grujić, Snežana, "Complex crystallization of the potassium-niobium-germanate system" in 53rd International October Conference on Mining and Metallurgy IOC 2022 (2022):97-100.

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  - 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  - 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  - 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  - 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  - 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  - 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  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Zildžović, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/669
AB  - The glass was prepared by standard melt-quenching technique. The crystallization of powder glass from the system Li2O-Al2O3-GeO2-P2O5 was studied. The investigations were performed under non-isothermal and isothermal conditions using DTA and XRD methods. The results showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed. The influence of particle size of the glass powder samples in the range 0-1 mm on the temperature of the DTA crystallization peak, Tp, the peak height (δT)p and the parameter Tp2/(ΔT)p was studied. It was indicated that for the particle size in the range 0.05-0.4 mm, surface and volume crystallization are significant, while for the particle size >0.4 mm the volume crystallization is dominant.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 52th International October Conference on Mining and Metalurgy-IOC 2021
T1  - The influence of the particle size on crystallization of glass powders from the system Li2O-Al2O3-GeO2-P2O5
EP  - 38
SP  - 35
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Grujić, Snežana and Stojanović, Jovica and Nikolić, Jelena and Savić, Veljko and Zildžović, Snežana",
year = "2021",
abstract = "The glass was prepared by standard melt-quenching technique. The crystallization of powder glass from the system Li2O-Al2O3-GeO2-P2O5 was studied. The investigations were performed under non-isothermal and isothermal conditions using DTA and XRD methods. The results showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed. The influence of particle size of the glass powder samples in the range 0-1 mm on the temperature of the DTA crystallization peak, Tp, the peak height (δT)p and the parameter Tp2/(ΔT)p was studied. It was indicated that for the particle size in the range 0.05-0.4 mm, surface and volume crystallization are significant, while for the particle size >0.4 mm the volume crystallization is dominant.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "52th International October Conference on Mining and Metalurgy-IOC 2021",
title = "The influence of the particle size on crystallization of glass powders from the system Li2O-Al2O3-GeO2-P2O5",
pages = "38-35"
}

Topalović, V., Matijašević, S., Grujić, S., Stojanović, J., Nikolić, J., Savić, V.,& Zildžović, S.. (2021). The influence of the particle size on crystallization of glass powders from the system Li2O-Al2O3-GeO2-P2O5. in 52th International October Conference on Mining and Metalurgy-IOC 2021
University of Belgrade, Technical Faculty in Bor., 35-38.

Topalović V, Matijašević S, Grujić S, Stojanović J, Nikolić J, Savić V, Zildžović S. The influence of the particle size on crystallization of glass powders from the system Li2O-Al2O3-GeO2-P2O5. in 52th International October Conference on Mining and Metalurgy-IOC 2021. 2021;:35-38..

Topalović, Vladimir, Matijašević, Srđan, Grujić, Snežana, Stojanović, Jovica, Nikolić, Jelena, Savić, Veljko, Zildžović, Snežana, "The influence of the particle size on crystallization of glass powders from the system Li2O-Al2O3-GeO2-P2O5" in 52th International October Conference on Mining and Metalurgy-IOC 2021 (2021):35-38.

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  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/798
AB  - Information about the dissolution process and ion release of phosphate glasses in different environments is important for a wide range of engineering applications, from biomaterial design to environmental technologies. The dissolution of glass is a complex phenomenon and the kinetics of this process depend on the glass properties (composition, structure, surface condition, etc.) and environment (the type of solvent, leaching solution volume, pH, temperature, etc.). The dissolution behavior of glass is determined by the reactions of the glass network and the release of different ions to the solution. Surface conditions and layer formation, saturation effects, and solution chemistry must also be taken into account when describing the dissolution processes. Mechanism of chemical reactivity of a polyphosphate glass (45P2O5·3SiO2·25K2O·15CaO·10MgO·1ZnO·1MnO (mol %)) in distilled water, an aqueous solution of 2% citric acid and SBF, under static and non-saturated conditions were presented. The leaching tests were performed with glass powder samples (0.3–0.65 mm) at T=37 °C for times up to 720 h. The mass loss of the samples, the changes of pH, the concentration of elements (P, K, Ca, Mg, Zn, and Mn) in solution, and the initial release rates (r0i) and rate of glass hydrolysis (rhi) were determined. The time dependence of the normalized concentration of ions in solution indicates that the dissolution of examined glass, for all investigated environments, occurs in three stages. For shorter times (stage I), the changes of the normalized concentration of ions in solution were linear with time, corresponding to the highest dissolution rates. During stage II, the changes of the normalized concentration of ions in solution with time were smaller due to lower dissolution rates. In stage III, the changes of the normalized concentration of ions in solution were very small and the dissolution rates were more than ten times lower compared to the initial rates. The initial release rates of cations were determined in the range of 0.17­12.92 g/m2h.  The release rates of cations rhi by hydrolysis were determined in the range of 0.13×10-2-2.31×10-2 g/m2h. The time dependence of the solutions' pH is not the same for all of the three solvents. pH value decreased in the initial stage and then remained constant in distilled water and SBF, while in the aqueous solution of 2% citric acid pH value increased in the initial stage and then remained constant.
PB  - Zvornik : University of East Sarajevo, Faculty of Technology
C3  - VII International Congress ¨Engineering, Environment and Materials in Process Industry¨
T1  - Reactivity of polyphosphate glass in different medium
EP  - 150
SP  - 150
ER  - 

@conference{
author = "Topalović, Vladimir and Nikolić, Jelena and Savić, Veljko and Matijašević, Srđan and Đošić, Marija and Smiljanić, Sonja and Grujić, Snežana",
year = "2021",
abstract = "Information about the dissolution process and ion release of phosphate glasses in different environments is important for a wide range of engineering applications, from biomaterial design to environmental technologies. The dissolution of glass is a complex phenomenon and the kinetics of this process depend on the glass properties (composition, structure, surface condition, etc.) and environment (the type of solvent, leaching solution volume, pH, temperature, etc.). The dissolution behavior of glass is determined by the reactions of the glass network and the release of different ions to the solution. Surface conditions and layer formation, saturation effects, and solution chemistry must also be taken into account when describing the dissolution processes. Mechanism of chemical reactivity of a polyphosphate glass (45P2O5·3SiO2·25K2O·15CaO·10MgO·1ZnO·1MnO (mol %)) in distilled water, an aqueous solution of 2% citric acid and SBF, under static and non-saturated conditions were presented. The leaching tests were performed with glass powder samples (0.3–0.65 mm) at T=37 °C for times up to 720 h. The mass loss of the samples, the changes of pH, the concentration of elements (P, K, Ca, Mg, Zn, and Mn) in solution, and the initial release rates (r0i) and rate of glass hydrolysis (rhi) were determined. The time dependence of the normalized concentration of ions in solution indicates that the dissolution of examined glass, for all investigated environments, occurs in three stages. For shorter times (stage I), the changes of the normalized concentration of ions in solution were linear with time, corresponding to the highest dissolution rates. During stage II, the changes of the normalized concentration of ions in solution with time were smaller due to lower dissolution rates. In stage III, the changes of the normalized concentration of ions in solution were very small and the dissolution rates were more than ten times lower compared to the initial rates. The initial release rates of cations were determined in the range of 0.17­12.92 g/m2h.  The release rates of cations rhi by hydrolysis were determined in the range of 0.13×10-2-2.31×10-2 g/m2h. The time dependence of the solutions' pH is not the same for all of the three solvents. pH value decreased in the initial stage and then remained constant in distilled water and SBF, while in the aqueous solution of 2% citric acid pH value increased in the initial stage and then remained constant.",
publisher = "Zvornik : University of East Sarajevo, Faculty of Technology",
journal = "VII International Congress ¨Engineering, Environment and Materials in Process Industry¨",
title = "Reactivity of polyphosphate glass in different medium",
pages = "150-150"
}

Topalović, V., Nikolić, J., Savić, V., Matijašević, S., Đošić, M., Smiljanić, S.,& Grujić, S.. (2021). Reactivity of polyphosphate glass in different medium. in VII International Congress ¨Engineering, Environment and Materials in Process Industry¨
Zvornik : University of East Sarajevo, Faculty of Technology., 150-150.

Topalović V, Nikolić J, Savić V, Matijašević S, Đošić M, Smiljanić S, Grujić S. Reactivity of polyphosphate glass in different medium. in VII International Congress ¨Engineering, Environment and Materials in Process Industry¨. 2021;:150-150..

Topalović, Vladimir, Nikolić, Jelena, Savić, Veljko, Matijašević, Srđan, Đošić, Marija, Smiljanić, Sonja, Grujić, Snežana, "Reactivity of polyphosphate glass in different medium" in VII International Congress ¨Engineering, Environment and Materials in Process Industry¨ (2021):150-150.

TY  - CONF
AU  - Savić, Veljko
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Smiljanić, Sonja
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/797
AB  - Glass foams were produced from a green beer bottle and sugar beet factory lime (SBFL) as the foaming agent. The sintering temperature was in 750-900 oC range. Porosity and compressive strength were determined. Results showed that glass foam sintered at 750 °C has the best compressive strength and even distribution of pores throughout the volume of the sample. The increase of temperature from 800 to 900 °C compressive strength was improved while porosity has slightly dropped. Pores with diameters greater than 1000 µm were formed due to pore agglomeration. Obtained glass foams have properties comparable to commercial ones and could be used for sound and thermal insulation.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Effect of sintering temperature on the compressive strength and microstructure of glass foam made from waste materials
EP  - 433
SP  - 430
ER  - 

@conference{
author = "Savić, Veljko and Matijašević, Srđan and Topalović, Vladimir and Nikolić, Jelena and Smiljanić, Sonja and Zildžović, Snežana and Grujić, Snežana",
year = "2021",
abstract = "Glass foams were produced from a green beer bottle and sugar beet factory lime (SBFL) as the foaming agent. The sintering temperature was in 750-900 oC range. Porosity and compressive strength were determined. Results showed that glass foam sintered at 750 °C has the best compressive strength and even distribution of pores throughout the volume of the sample. The increase of temperature from 800 to 900 °C compressive strength was improved while porosity has slightly dropped. Pores with diameters greater than 1000 µm were formed due to pore agglomeration. Obtained glass foams have properties comparable to commercial ones and could be used for sound and thermal insulation.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "15th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Effect of sintering temperature on the compressive strength and microstructure of glass foam made from waste materials",
pages = "433-430"
}

Savić, V., Matijašević, S., Topalović, V., Nikolić, J., Smiljanić, S., Zildžović, S.,& Grujić, S.. (2021). Effect of sintering temperature on the compressive strength and microstructure of glass foam made from waste materials. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Belgrade : Society of Physical Chemists of Serbia., 430-433.

Savić V, Matijašević S, Topalović V, Nikolić J, Smiljanić S, Zildžović S, Grujić S. Effect of sintering temperature on the compressive strength and microstructure of glass foam made from waste materials. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2021;:430-433..

Savić, Veljko, Matijašević, Srđan, Topalović, Vladimir, Nikolić, Jelena, Smiljanić, Sonja, Zildžović, Snežana, Grujić, Snežana, "Effect of sintering temperature on the compressive strength and microstructure of glass foam made from waste materials" in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry (2021):430-433.

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
AU  - Smiljanić, Sonja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/795
AB  - Coal fly ash represents huge ecological problem and its reutilization should be considered. Vitrification of coal fly ash could be one of the solutions. The glass was obtained by melting a mixture of coal fly ash, glass cullet 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 = 95 0C for t = 2 h. 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  - XIV International Mineral Processing and Recycling Conference-IMPRC 2021
T1  - Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate
EP  - 362
SP  - 357
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Zildžović, Snežana and Grujić, Snežana and Smiljanić, Sonja",
year = "2021",
abstract = "Coal fly ash represents huge ecological problem and its reutilization should be considered. Vitrification of coal fly ash could be one of the solutions. The glass was obtained by melting a mixture of coal fly ash, glass cullet 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 = 95 0C for t = 2 h. 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 = "XIV International Mineral Processing and Recycling Conference-IMPRC 2021",
title = "Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate",
pages = "362-357"
}

Savić, V., Topalović, V., Nikolić, J., Matijašević, S., Zildžović, S., Grujić, S.,& Smiljanić, S.. (2021). Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate. in XIV International Mineral Processing and Recycling Conference-IMPRC 2021
Bor : University of Belgrade, Technical Faculty in Bor., 357-362.

Savić V, Topalović V, Nikolić J, Matijašević S, Zildžović S, Grujić S, Smiljanić S. Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate. in XIV International Mineral Processing and Recycling Conference-IMPRC 2021. 2021;:357-362..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Zildžović, Snežana, Grujić, Snežana, Smiljanić, Sonja, "Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate" in XIV International Mineral Processing and Recycling Conference-IMPRC 2021 (2021):357-362.

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  - CONF
AU  - Nikolić, Jelena
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/783
AB  - Phosphate glassy fertilizers are the new type of advanced and controlled released fertilizer, whose glassy matrixes consist of macroelements (K, P, Mg, Ca) most useful for plants and microelements (Fe, Cu, Zn, Mn) which are important to the growth and development of plants. The flexibility of glasses enables the variation of their composition and properties over a wide range. The dissolution behavior of glasses from the P2O5-SiO2-K2O-CaO-MgO system doped with various microelements in bidistilled water and the 2% aqueous solution of citric acid under static conditions was studied. The leaching tests were performed with glass powder samples (0.3–0.65 mm) at T=37 °C for periods up to 480 h. The samples mass loss, the changes of pH, as well as the concentration of elements in solution were determined.
PB  - Belgrade : University of Belgrade, Faculty of Mining and Geology
C3  - 8th International Conference Mining and Environmental Protection MEP-21
T1  - The effect of composition on chemical durability of phophate glass fertilizers
EP  - 182
SP  - 175
ER  - 

@conference{
author = "Nikolić, Jelena and Topalović, Vladimir and Matijašević, Srđan and Đošić, Marija and Zildžović, Snežana and Grujić, Snežana",
year = "2021",
abstract = "Phosphate glassy fertilizers are the new type of advanced and controlled released fertilizer, whose glassy matrixes consist of macroelements (K, P, Mg, Ca) most useful for plants and microelements (Fe, Cu, Zn, Mn) which are important to the growth and development of plants. The flexibility of glasses enables the variation of their composition and properties over a wide range. The dissolution behavior of glasses from the P2O5-SiO2-K2O-CaO-MgO system doped with various microelements in bidistilled water and the 2% aqueous solution of citric acid under static conditions was studied. The leaching tests were performed with glass powder samples (0.3–0.65 mm) at T=37 °C for periods up to 480 h. The samples mass loss, the changes of pH, as well as the concentration of elements in solution were determined.",
publisher = "Belgrade : University of Belgrade, Faculty of Mining and Geology",
journal = "8th International Conference Mining and Environmental Protection MEP-21",
title = "The effect of composition on chemical durability of phophate glass fertilizers",
pages = "182-175"
}

Nikolić, J., Topalović, V., Matijašević, S., Đošić, M., Zildžović, S.,& Grujić, S.. (2021). The effect of composition on chemical durability of phophate glass fertilizers. in 8th International Conference Mining and Environmental Protection MEP-21
Belgrade : University of Belgrade, Faculty of Mining and Geology., 175-182.

Nikolić J, Topalović V, Matijašević S, Đošić M, Zildžović S, Grujić S. The effect of composition on chemical durability of phophate glass fertilizers. in 8th International Conference Mining and Environmental Protection MEP-21. 2021;:175-182..

Nikolić, Jelena, Topalović, Vladimir, Matijašević, Srđan, Đošić, Marija, Zildžović, Snežana, Grujić, Snežana, "The effect of composition on chemical durability of phophate glass fertilizers" in 8th International Conference Mining and Environmental Protection MEP-21 (2021):175-182.