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  - 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  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Đošić, Marija
AU  - Grujić, sn
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/786
AB  - Polyphosphate glasses are a class of bioactive glasses that have gained significant attention in recent years due to their unique properties and potential applications in various fields, particularly in the area of biomedical engineering. These glasses exhibit excellent biocompatibility, which is a crucial requirement for biomaterials. Furthermore, their dissolution and degradation rates can be tailored by modifying their composition, allowing for control over their bioactivity and biodegradability. Polyphosphate glasses also have the ability to form a hydroxyapatite-like layer on their surface when in contact with biological fluids, which facilitates their integration with surrounding tissues. The unique properties of polyphosphate glasses make them promising candidates for various biomedical applications, including bone tissue engineering, drug delivery, and wound healing. This paper presents the thermal characterization of two bioactive polyphosphate glass compositions with the addition of strontium, to investigate the sintering and crystallization processes. The samples were synthesized using the melt-quenching method and then sintered at various temperatures. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were used to analyze the thermal behavior and crystalline phases formed during sintering. Our results showed that sintering and crystallization are separate processes for both compositions. The addition of strontium to the glass improved its sintering behavior, resulting in a denser glass structure. Moreover, strontium incorporation did not affect the formation of the crystalline phase during sintering. These findings provide useful insights into the design and development of bioactive polyphosphate glass compositions for bone tissue engineering applications.
PB  - Belgrade : Materials Research Society of Serbia
C3  - THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023
T1  - Thermal characterization of bioactive polyphosphate glass with strontium addition
EP  - 163
SP  - 163
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Savić, Veljko and Đošić, Marija and Grujić, sn",
year = "2023",
abstract = "Polyphosphate glasses are a class of bioactive glasses that have gained significant attention in recent years due to their unique properties and potential applications in various fields, particularly in the area of biomedical engineering. These glasses exhibit excellent biocompatibility, which is a crucial requirement for biomaterials. Furthermore, their dissolution and degradation rates can be tailored by modifying their composition, allowing for control over their bioactivity and biodegradability. Polyphosphate glasses also have the ability to form a hydroxyapatite-like layer on their surface when in contact with biological fluids, which facilitates their integration with surrounding tissues. The unique properties of polyphosphate glasses make them promising candidates for various biomedical applications, including bone tissue engineering, drug delivery, and wound healing. This paper presents the thermal characterization of two bioactive polyphosphate glass compositions with the addition of strontium, to investigate the sintering and crystallization processes. The samples were synthesized using the melt-quenching method and then sintered at various temperatures. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were used to analyze the thermal behavior and crystalline phases formed during sintering. Our results showed that sintering and crystallization are separate processes for both compositions. The addition of strontium to the glass improved its sintering behavior, resulting in a denser glass structure. Moreover, strontium incorporation did not affect the formation of the crystalline phase during sintering. These findings provide useful insights into the design and development of bioactive polyphosphate glass compositions for bone tissue engineering applications.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023",
title = "Thermal characterization of bioactive polyphosphate glass with strontium addition",
pages = "163-163"
}

Topalović, V., Matijašević, S., Nikolić, J., Savić, V., Đošić, M.,& Grujić, s.. (2023). Thermal characterization of bioactive polyphosphate glass with strontium addition. in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023
Belgrade : Materials Research Society of Serbia., 163-163.

Topalović V, Matijašević S, Nikolić J, Savić V, Đošić M, Grujić S. Thermal characterization of bioactive polyphosphate glass with strontium addition. in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023. 2023;:163-163..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Savić, Veljko, Đošić, Marija, Grujić, sn, "Thermal characterization of bioactive polyphosphate glass with strontium addition" in THE TWENTY-FOURTH ANNUAL CONFERENCE YUCOMAT 2023 (2023):163-163.

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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Smiljanić, Sonja
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/790
AB  - Copper mine tailings is one of the most used secondary raw materials. The most common use is in cement industry and as filler in road construction. The area of secondary raw materials utilization offering the greatest potential is in the development of glass-ceramic compositions, where the waste is melted to form a glass, fabricated using conventional glass forming techniques, and subsequently nucleated and devitrified in a controlled manner through heat treatment. The resultant, partially crystallized material offers improved strength, chemical and abrasion resistance. Copper mine tailings was mixed with 30% glass cullets and melted in electric furnace BLF 17/3 at T=1450 °C during t=0.5 h. The obtained glass sample was black, without visible residual gas bubbles. X-ray powder diffraction (XRD) analysis confirmed the quenched melt to be amorphous. DTA and HSM analysis was performed on the previously prepared glass powder. The glass powder samples were pressed in pellets and sintered in an electric furnace at the temperature of 1040 °C for 2h and a glass- ceramics was obtained. Applications for these glass-ceramic materials would include structural products, pipe or pipeliners to transport abrasive or corrosive fluids, alkali-resistant fibers to replace asbestos in concrete products, and use as a matrix material in which radioactive wastes could be chemically incorporated in a stable, nonleachable, solid form.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019
T1  - Glass-ceramics obtained from copper mine tailings and glass cullets
EP  - 33
SP  - 33
ER  - 

@conference{
author = "Savić, Veljko and Matijašević, Srđan and Topalović, Vladimir and Smiljanić, Sonja and Nikolić, Jelena and Zildžović, Snežana and Grujić, Snežana",
year = "2019",
abstract = "Copper mine tailings is one of the most used secondary raw materials. The most common use is in cement industry and as filler in road construction. The area of secondary raw materials utilization offering the greatest potential is in the development of glass-ceramic compositions, where the waste is melted to form a glass, fabricated using conventional glass forming techniques, and subsequently nucleated and devitrified in a controlled manner through heat treatment. The resultant, partially crystallized material offers improved strength, chemical and abrasion resistance. Copper mine tailings was mixed with 30% glass cullets and melted in electric furnace BLF 17/3 at T=1450 °C during t=0.5 h. The obtained glass sample was black, without visible residual gas bubbles. X-ray powder diffraction (XRD) analysis confirmed the quenched melt to be amorphous. DTA and HSM analysis was performed on the previously prepared glass powder. The glass powder samples were pressed in pellets and sintered in an electric furnace at the temperature of 1040 °C for 2h and a glass- ceramics was obtained. Applications for these glass-ceramic materials would include structural products, pipe or pipeliners to transport abrasive or corrosive fluids, alkali-resistant fibers to replace asbestos in concrete products, and use as a matrix material in which radioactive wastes could be chemically incorporated in a stable, nonleachable, solid form.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019",
title = "Glass-ceramics obtained from copper mine tailings and glass cullets",
pages = "33-33"
}

Savić, V., Matijašević, S., Topalović, V., Smiljanić, S., Nikolić, J., Zildžović, S.,& Grujić, S.. (2019). Glass-ceramics obtained from copper mine tailings and glass cullets. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019
Belgrade : Association of Metallurgical Engineers of Serbia., 33-33.

Savić V, Matijašević S, Topalović V, Smiljanić S, Nikolić J, Zildžović S, Grujić S. Glass-ceramics obtained from copper mine tailings and glass cullets. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019. 2019;:33-33..

Savić, Veljko, Matijašević, Srđan, Topalović, Vladimir, Smiljanić, Sonja, Nikolić, Jelena, Zildžović, Snežana, Grujić, Snežana, "Glass-ceramics obtained from copper mine tailings and glass cullets" in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019 (2019):33-33.

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  - 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  - 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  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/799
AB  - In recent years, because of dissolution behavior, bioactivity and biocompatibility, there is an expanding interest in the development and application of phosphate-based glasses as biomaterials in medicine [1, 2]. These glasses are preferable to silica-based glasses because of their more controllable dissolution rate [3, 4]. Several techniques have been developed to fabricate bioactive porous glass-ceramic scaffolds for application in bone tissue engineering [5-7]. In this paper, the 3D macroporous bioactive glass-ceramic scaffolds based on 42P2O5•40CaO•5SrO•10Na2O•3TiO2 (mol %) glass were prepared by polyurethane (PU) foam replication technique and analyzed. The appropriate batch composition of raw materials was melted at 1250 °C for 0.5 h in a Pt crucible. Obtained glass samples were transparent, without visible residual gas bubbles. To obtain desired particle size (< 5μm), the glass sample was ground at 400 rpm for 1h in an SFM-1 Desk-Top Planetary Ball Miller, MTI Corporation. The polymeric template used for scaffold preparation was a commercial PU sponge. The sponge cubes were soaked into the glass slurry, compressed, dried, and thermally treated (650 °C, 1h) to remove the organic phase and to obtain macroporous glass-ceramic scaffolds. The sintering temperature for glass was chosen according to DTA and HSM experiment performed previously [8]. Scaffolds structure and morphology were analyzed by stereo microscope (EU Instruments) and a scanning electron microscope (MIRA X 3 TESCAN). The phase composition of the sintered scaffold was determined by XRD analysis using a Philips PW-1710 automated diffractometer. Figure 1, shows the structure of the PU sponge, used as a scaffold template that exhibits a 3D network of pores, which vary in size from 100 to 600 µm. In Figure 2, the SEM micrograph of the PU skeleton coated with glass particles is shown. As may be seen in Figure 3, the morphology of the scaffold sintered at T = 650 °C for 1h remains highly porous without a significant decrease in the pore size. The images revealed that the pore struts are well sintered. XRD analysis of the powdered scaffold showed that during sintering the glass particles crystallized and the crystalline phases determined are: Ca(PO3)2, β-Ca3(PO4)2, α-Ca2P2O7 and β-Ca2P2O7 (Figure 4). For 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 [9]. The obtained phase composition and the microstructure of the as-prepared scaffold indicated its possible application as a bioactive material for bone tissue engineering [10].
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - First International Conference on Electron Microscopy ELMINA2018
T1  - Synthesis of Phosphate Based Bioactive Glass-ceramics Scaffolds
EP  - 251
SP  - 249
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Đošić, Marija and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2018",
abstract = "In recent years, because of dissolution behavior, bioactivity and biocompatibility, there is an expanding interest in the development and application of phosphate-based glasses as biomaterials in medicine [1, 2]. These glasses are preferable to silica-based glasses because of their more controllable dissolution rate [3, 4]. Several techniques have been developed to fabricate bioactive porous glass-ceramic scaffolds for application in bone tissue engineering [5-7]. In this paper, the 3D macroporous bioactive glass-ceramic scaffolds based on 42P2O5•40CaO•5SrO•10Na2O•3TiO2 (mol %) glass were prepared by polyurethane (PU) foam replication technique and analyzed. The appropriate batch composition of raw materials was melted at 1250 °C for 0.5 h in a Pt crucible. Obtained glass samples were transparent, without visible residual gas bubbles. To obtain desired particle size (< 5μm), the glass sample was ground at 400 rpm for 1h in an SFM-1 Desk-Top Planetary Ball Miller, MTI Corporation. The polymeric template used for scaffold preparation was a commercial PU sponge. The sponge cubes were soaked into the glass slurry, compressed, dried, and thermally treated (650 °C, 1h) to remove the organic phase and to obtain macroporous glass-ceramic scaffolds. The sintering temperature for glass was chosen according to DTA and HSM experiment performed previously [8]. Scaffolds structure and morphology were analyzed by stereo microscope (EU Instruments) and a scanning electron microscope (MIRA X 3 TESCAN). The phase composition of the sintered scaffold was determined by XRD analysis using a Philips PW-1710 automated diffractometer. Figure 1, shows the structure of the PU sponge, used as a scaffold template that exhibits a 3D network of pores, which vary in size from 100 to 600 µm. In Figure 2, the SEM micrograph of the PU skeleton coated with glass particles is shown. As may be seen in Figure 3, the morphology of the scaffold sintered at T = 650 °C for 1h remains highly porous without a significant decrease in the pore size. The images revealed that the pore struts are well sintered. XRD analysis of the powdered scaffold showed that during sintering the glass particles crystallized and the crystalline phases determined are: Ca(PO3)2, β-Ca3(PO4)2, α-Ca2P2O7 and β-Ca2P2O7 (Figure 4). For 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 [9]. The obtained phase composition and the microstructure of the as-prepared scaffold indicated its possible application as a bioactive material for bone tissue engineering [10].",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "First International Conference on Electron Microscopy ELMINA2018",
title = "Synthesis of Phosphate Based Bioactive Glass-ceramics Scaffolds",
pages = "251-249"
}

Topalović, V., Matijašević, S., Nikolić, J., Đošić, M., Savić, V., Smiljanić, S.,& Grujić, S.. (2018). Synthesis of Phosphate Based Bioactive Glass-ceramics Scaffolds. in First International Conference on Electron Microscopy ELMINA2018
Belgrade : Serbian Academy of Sciences and Arts., 249-251.

Topalović V, Matijašević S, Nikolić J, Đošić M, Savić V, Smiljanić S, Grujić S. Synthesis of Phosphate Based Bioactive Glass-ceramics Scaffolds. in First International Conference on Electron Microscopy ELMINA2018. 2018;:249-251..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Đošić, Marija, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "Synthesis of Phosphate Based Bioactive Glass-ceramics Scaffolds" in First International Conference on Electron Microscopy ELMINA2018 (2018):249-251.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/805
AB  - Because of their potential application in bone tissue repair and regeneration, different types of bioactive glasses have been extensively studied. This study has been focused on examination of the dissolution process of two bioactive glass compositions, 42P2O5·40CaO·5SrO·10Na2O·3TiO2 (GSSR5) and 46P2O5·40CaO·SrO·10Na2O·3TiO2 (GSSR1) (mol%). Powdered glass samples were immersed in simulated body fluid (SBF) and kept in a water bath at 37 °C for 21 days under semi-dynamic conditions. The mass loss of glass, normalized concentration of ions and pH values of solutions were determined. Dissolution rates for both glasses were increasing until the 5h mark and after that time the dissolution rates decreased. After the 48 h glass dissolution rates reached the steady state. Measured dissolution rates after 168h for GSSR5 and GSSR1 were 1.13·10-4 gh-1 and 3.61·10-4 gh-1, respectively.
PB  - Belgrade : Serbian Ceramic Society
C3  - ADVANCED CERAMICS AND APPLICATION VII New Frontiers in Multifunctional Material Science and Processing
T1  - Dissolution properties of bioactive glasses containing strontium
EP  - 61
SP  - 61
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Đošić, Marija and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2018",
abstract = "Because of their potential application in bone tissue repair and regeneration, different types of bioactive glasses have been extensively studied. This study has been focused on examination of the dissolution process of two bioactive glass compositions, 42P2O5·40CaO·5SrO·10Na2O·3TiO2 (GSSR5) and 46P2O5·40CaO·SrO·10Na2O·3TiO2 (GSSR1) (mol%). Powdered glass samples were immersed in simulated body fluid (SBF) and kept in a water bath at 37 °C for 21 days under semi-dynamic conditions. The mass loss of glass, normalized concentration of ions and pH values of solutions were determined. Dissolution rates for both glasses were increasing until the 5h mark and after that time the dissolution rates decreased. After the 48 h glass dissolution rates reached the steady state. Measured dissolution rates after 168h for GSSR5 and GSSR1 were 1.13·10-4 gh-1 and 3.61·10-4 gh-1, respectively.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "ADVANCED CERAMICS AND APPLICATION VII New Frontiers in Multifunctional Material Science and Processing",
title = "Dissolution properties of bioactive glasses containing strontium",
pages = "61-61"
}

Topalović, V., Matijašević, S., Nikolić, J., Đošić, M., Savić, V., Smiljanić, S.,& Grujić, S.. (2018). Dissolution properties of bioactive glasses containing strontium. in ADVANCED CERAMICS AND APPLICATION VII New Frontiers in Multifunctional Material Science and Processing
Belgrade : Serbian Ceramic Society., 61-61.

Topalović V, Matijašević S, Nikolić J, Đošić M, Savić V, Smiljanić S, Grujić S. Dissolution properties of bioactive glasses containing strontium. in ADVANCED CERAMICS AND APPLICATION VII New Frontiers in Multifunctional Material Science and Processing. 2018;:61-61..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Đošić, Marija, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "Dissolution properties of bioactive glasses containing strontium" in ADVANCED CERAMICS AND APPLICATION VII New Frontiers in Multifunctional Material Science and Processing (2018):61-61.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/793
AB  - Glass-ceramic with the composition 42P2O5·40CaO·La2O3·10Na2O·3TiO2 (mol %) was obtained by standard melt-quenching method. The crystallization and sintering behavior of glass have been studied by using DTA and  XRD methods. The sintered phosphate glass-ceramic containing bioactive β-CaP2O6, α-Ca3(PO4)2 and β-Ca3(PO4)2  phases was successfully prepared.
PB  - Bor : Mining and Metallurgy Institute Bor
C3  - 50th International October Conference on Mining and Metallurgy-IOC 2018
T1  - Lanthanum-doped phosphate glass for biomedical application
EP  - 226
SP  - 223
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2018",
abstract = "Glass-ceramic with the composition 42P2O5·40CaO·La2O3·10Na2O·3TiO2 (mol %) was obtained by standard melt-quenching method. The crystallization and sintering behavior of glass have been studied by using DTA and  XRD methods. The sintered phosphate glass-ceramic containing bioactive β-CaP2O6, α-Ca3(PO4)2 and β-Ca3(PO4)2  phases was successfully prepared.",
publisher = "Bor : Mining and Metallurgy Institute Bor",
journal = "50th International October Conference on Mining and Metallurgy-IOC 2018",
title = "Lanthanum-doped phosphate glass for biomedical application",
pages = "226-223"
}

Topalović, V., Matijašević, S., Nikolić, J., Savić, V., Smiljanić, S.,& Grujić, S.. (2018). Lanthanum-doped phosphate glass for biomedical application. in 50th International October Conference on Mining and Metallurgy-IOC 2018
Bor : Mining and Metallurgy Institute Bor., 223-226.

Topalović V, Matijašević S, Nikolić J, Savić V, Smiljanić S, Grujić S. Lanthanum-doped phosphate glass for biomedical application. in 50th International October Conference on Mining and Metallurgy-IOC 2018. 2018;:223-226..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "Lanthanum-doped phosphate glass for biomedical application" in 50th International October Conference on Mining and Metallurgy-IOC 2018 (2018):223-226.