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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7090
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 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
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
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 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",
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",
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..
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;.
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 (2024),
https://doi.org/10.1007/s13762-023-05411-9 . .

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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6579
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 amounts 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  - Elsevier Ltd.
T2  - Heliyon
T1  - Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent
IS  - 7
SP  - e17664
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 amounts 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 = "Elsevier Ltd.",
journal = "Heliyon",
title = "Foam glasses made from green bottle glass and sugar beet factory lime as a foaming agent",
number = "7",
pages = "e17664",
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
Elsevier Ltd.., 9(7), e17664.
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):e17664.
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):e17664,
https://doi.org/10.1016/j.heliyon.2023.e17664 . .

TY  - JOUR
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Stojanović, Jovica
AU  - Karamanov, Alexander
AU  - Grujić, Snežana
AU  - Jevtić, Sanja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5272
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 β-CaP2O6, α-Ca3(PO4)2, and β-Ca3(PO4)2 phases were successfully prepared.
PB  - Springer Science and Business Media B.V.
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
DO  - 10.1007/s10973-022-11777-8
ER  - 

@article{
author = "Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Stojanović, Jovica and Karamanov, Alexander and Grujić, Snežana and Jevtić, Sanja",
year = "2022",
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 β-CaP2O6, α-Ca3(PO4)2, and β-Ca3(PO4)2 phases were successfully prepared.",
publisher = "Springer Science and Business Media B.V.",
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",
doi = "10.1007/s10973-022-11777-8"
}

Topalović, V., Nikolić, J., Matijašević, S., Stojanović, J., Karamanov, A., Grujić, S.,& Jevtić, S.. (2022). 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
Springer Science and Business Media B.V...
https://doi.org/10.1007/s10973-022-11777-8

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. 2022;.
doi:10.1007/s10973-022-11777-8 .

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 (2022),
https://doi.org/10.1007/s10973-022-11777-8 . .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
AU  - Nikolić, Jelena
AU  - Topalović, Vladimir
AU  - Savić, Veljko
AU  - Zildžović, Snežana
AU  - Labus, Nebojša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5370
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.
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  - https://hdl.handle.net/21.15107/rcub_dais_13580
ER  - 

@article{
author = "Matijašević, Srđan and Grujić, Snežana 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.",
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 = "https://hdl.handle.net/21.15107/rcub_dais_13580"
}

Matijašević, S., Grujić, S., 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, 54(3), 321-334.
https://doi.org/10.2298/SOS2203321M
https://hdl.handle.net/21.15107/rcub_dais_13580

Matijašević S, Grujić S, 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
https://hdl.handle.net/21.15107/rcub_dais_13580 .

Matijašević, Srđan, Grujić, Snežana, 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 .,
https://hdl.handle.net/21.15107/rcub_dais_13580 .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
AU  - Matijašević, Srđan D.
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Popović, Daniela
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/13
AB  - The crystal growth rate of La(2)SrB(10)O(19)in an undercooled melt of stoichiometric composition was studied. The crystallization of the bulk samples was performed in a single-stage regime under isothermal conditions at the selected temperatures for the different time periods. The surface crystallization was observed and in all crystallized samples, the La(2)SrB(10)O(19)crystalline phase was identified. Based on the dependence of the crystalline layer thickness on treatment time at selected temperature, crystal growth rate was obtained. The crystal growth rates were from 1.65 x 10(-8)to 2.77 x 10(-7)m s(-1)in the temperature interval (700-780 degrees C). The experimental values were compared to the calculated values using theoretical model of the crystal growth. The experimental growth rate followed the same trend as the calculated growth rate, but the experimental values were higher than the calculated.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Crystal growth of la(2)srb(10)o(19)from undercooled melt
DO  - 10.1007/s10973-020-10122-1
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana and Matijašević, Srđan D. and Stojanović, Jovica and Nikolić, Jelena and Savić, Veljko and Popović, Daniela",
year = "2020",
abstract = "The crystal growth rate of La(2)SrB(10)O(19)in an undercooled melt of stoichiometric composition was studied. The crystallization of the bulk samples was performed in a single-stage regime under isothermal conditions at the selected temperatures for the different time periods. The surface crystallization was observed and in all crystallized samples, the La(2)SrB(10)O(19)crystalline phase was identified. Based on the dependence of the crystalline layer thickness on treatment time at selected temperature, crystal growth rate was obtained. The crystal growth rates were from 1.65 x 10(-8)to 2.77 x 10(-7)m s(-1)in the temperature interval (700-780 degrees C). The experimental values were compared to the calculated values using theoretical model of the crystal growth. The experimental growth rate followed the same trend as the calculated growth rate, but the experimental values were higher than the calculated.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Crystal growth of la(2)srb(10)o(19)from undercooled melt",
doi = "10.1007/s10973-020-10122-1"
}

Smiljanić, S., Grujić, S., Matijašević, S. D., Stojanović, J., Nikolić, J., Savić, V.,& Popović, D.. (2020). Crystal growth of la(2)srb(10)o(19)from undercooled melt. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht..
https://doi.org/10.1007/s10973-020-10122-1

Smiljanić S, Grujić S, Matijašević SD, Stojanović J, Nikolić J, Savić V, Popović D. Crystal growth of la(2)srb(10)o(19)from undercooled melt. in Journal of Thermal Analysis and Calorimetry. 2020;.
doi:10.1007/s10973-020-10122-1 .

Smiljanić, Sonja, Grujić, Snežana, Matijašević, Srđan D., Stojanović, Jovica, Nikolić, Jelena, Savić, Veljko, Popović, Daniela, "Crystal growth of la(2)srb(10)o(19)from undercooled melt" in Journal of Thermal Analysis and Calorimetry (2020),
https://doi.org/10.1007/s10973-020-10122-1 . .

TY  - JOUR
AU  - Karamanov, Alexander
AU  - Smiljanić, Sonja
AU  - Karamanova, Emilia
AU  - Matijašević, Srđan D.
AU  - Nikolić, Jelena
AU  - Savić, Veljko
AU  - Grujić, Snežana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4386
AB  - Sintering, crystallization and foaming of nano glass powders with composition La2O3 center dot SrO center dot 5B(2)O(3) were studied by hot stage microscopy (HSM) and simultaneous thermal analysis (DTA-TG) under non-isothermal regime at 10 degrees C/min and by optical contactless dilatometer under isothermal conditions at 700 degrees C up to 10 hours for different times. After the thermal treatments, specimens were characterized by gas pycnometry, X-ray Powder Diffraction (XRD) and Field Emission Scanning Electron Microscopes (FE-SEM). The results demonstrate that the densification completed before the crystallization process, thus forming well sintered samples. Then, during the phase formation gas is released, which leads to foaming process. After holding of 160 minutes at 700 degrees C the degree of crystallization reached about 0.8 and the foaming stopped. The obtained sample had high closed porosity and quite intriguing structure composed of two fairly different crystal arrangements. The first was "sponge-like", while the second was denser and consisted of "sheets", 10-30 nm thick. The subsequent holding led to re-crystallization, formation of larger denser zones that reached even 10-15 mu m and an increase in open porosity. These results highlight that in the case of sinter crystallization of nano powders, some intriguing features can be expected.
PB  - Elsevier, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders: effect of the holding time
VL  - 544
DO  - 10.1016/j.jnoncrysol.2020.120168
ER  - 

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

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

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

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

TY  - JOUR
AU  - Stojanović, Jovica
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
AU  - Vulić, Predrag
AU  - Matijašević, Srđan D.
AU  - Nikolić, Jelena D.
AU  - Savić, Veljko
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4305
AB  - The crystal structure of new lanthanum strontium borate glass-ceramics was refined by the Rietveld method. The results showed that La2SrB10O19 has the monoclinic crystal structure, space group C2 (No. 5) with a = 11.1170(6), b = 6.5667(3), c = 9.2363(3) angstrom,beta = 91.481 degrees, V = 674.04(7) angstrom(3), two formula units per unit-cell, and density 3.830 g cm(-3). The main building units of the crystal structure are BO4 tetrahedra and BO3 triangles. Clusters composed of [B5O12] form an infinite double layer running perpendicular to the c-axis. Lanthanum atoms, situated in [B5O12](n) layers, are coordinated with 10 oxygen atom in a form of LaO10 polyhedra, while Sr atoms, located between [B5O12](n) layers, are coordinated with 8 oxygen atoms in a form of SrO8 polyhedra. Microstructural measurements contain both crystallite domain sizes and microstrain calculations obtained by the Warren Averbach and the simplified integral-breadth methods.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Structure and Microstructure Characterization of the La2SrB10O19 Glass-ceramics
EP  - 399
IS  - 4
SP  - 389
VL  - 51
DO  - 10.2298/SOS1904389S
ER  - 

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

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

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

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

TY  - JOUR
AU  - Vujošević, Ana
AU  - Matijašević, Srđan D.
AU  - Smiljanić, Sonja
AU  - Nikolić, Jelena
AU  - Zečević, Bogoljub
AU  - Topalović, Vladimir
AU  - Savić, Veljko
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4270
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  gt 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.
AB  - Polifosfatno staklo, u kome je molski odnos (M2O + MO)/P2O5  gt 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.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Polyphosphate glass as fertilizer for plant seedlings
T1  - Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća
EP  - 104
IS  - 1
SP  - 96
VL  - 60
DO  - 10.5937/zasmat1901096V
ER  - 

@article{
author = "Vujošević, Ana and Matijašević, Srđan D. and Smiljanić, Sonja and Nikolić, Jelena and Zečević, Bogoljub and Topalović, Vladimir and Savić, Veljko",
year = "2019",
abstract = "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  gt 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., Polifosfatno staklo, u kome je molski odnos (M2O + MO)/P2O5  gt 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.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Polyphosphate glass as fertilizer for plant seedlings, Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća",
pages = "104-96",
number = "1",
volume = "60",
doi = "10.5937/zasmat1901096V"
}

Vujošević, A., Matijašević, S. D., Smiljanić, S., Nikolić, J., Zečević, B., Topalović, V.,& Savić, V.. (2019). Polyphosphate glass as fertilizer for plant seedlings. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 60(1), 96-104.
https://doi.org/10.5937/zasmat1901096V

Vujošević A, Matijašević SD, Smiljanić S, Nikolić J, Zečević B, Topalović V, Savić V. Polyphosphate glass as fertilizer for plant seedlings. in Zaštita materijala. 2019;60(1):96-104.
doi:10.5937/zasmat1901096V .

Vujošević, Ana, Matijašević, Srđan D., Smiljanić, Sonja, Nikolić, Jelena, Zečević, Bogoljub, Topalović, Vladimir, Savić, Veljko, "Polyphosphate glass as fertilizer for plant seedlings" in Zaštita materijala, 60, no. 1 (2019):96-104,
https://doi.org/10.5937/zasmat1901096V . .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Karamanova, Emilia
AU  - Grujić, Snežana
AU  - Rogan, Jelena
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan D.
AU  - Karamanov, Alexander
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3989
AB  - The peculiarities of sinter-crystallization of La2O3 center dot SrO center dot 5B(2)O(3) fine glass powder (below 1 mu m) are investigated and discussed. The sintering was studied by contactless optical dilatometry and porosity measurements. The crystallization process was evaluated by differential scanning calorimetry (DSC) and the crystalline phase formation was analyzed by X-ray diffraction (XRD). Finally the microstructures of the samples sintered at different temperatures were observed by field emission scanning electron microscope (FESEM). The specific aim of this study was to highlight the influence of sintering temperature and heating rate on the densification process and the final structure of glass-ceramic samples. It was shown that zero water adsorption and minimum closed porosity of similar to 3% were obtained at heating rate of 2 degrees C/min and at about 1 h holding at 690 degrees C. The temperature increase accelerated intense foaming process that resulted in formation of total porosity of 35-45%. It was also demonstrated that the foaming depended on the heating rate: the higher the heating rate - the more intensive was the bloating. The observed foaming process was related to intensive crystallization and re-crystallization of La2O3 center dot SrO center dot 5B(2)O(3) crystal phase. The phase formation processes entirely completed after 30-60 min at 730-740 degrees C with the formation of intriguing and unusual crystal structures.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders - effect of the holding temperature and the heating rate
EP  - 382
SP  - 375
VL  - 481
DO  - 10.1016/j.jnoncrysol.2017.11.009
ER  - 

@article{
author = "Smiljanić, Sonja and Karamanova, Emilia and Grujić, Snežana and Rogan, Jelena and Stojanović, Jovica and Matijašević, Srđan D. and Karamanov, Alexander",
year = "2018",
abstract = "The peculiarities of sinter-crystallization of La2O3 center dot SrO center dot 5B(2)O(3) fine glass powder (below 1 mu m) are investigated and discussed. The sintering was studied by contactless optical dilatometry and porosity measurements. The crystallization process was evaluated by differential scanning calorimetry (DSC) and the crystalline phase formation was analyzed by X-ray diffraction (XRD). Finally the microstructures of the samples sintered at different temperatures were observed by field emission scanning electron microscope (FESEM). The specific aim of this study was to highlight the influence of sintering temperature and heating rate on the densification process and the final structure of glass-ceramic samples. It was shown that zero water adsorption and minimum closed porosity of similar to 3% were obtained at heating rate of 2 degrees C/min and at about 1 h holding at 690 degrees C. The temperature increase accelerated intense foaming process that resulted in formation of total porosity of 35-45%. It was also demonstrated that the foaming depended on the heating rate: the higher the heating rate - the more intensive was the bloating. The observed foaming process was related to intensive crystallization and re-crystallization of La2O3 center dot SrO center dot 5B(2)O(3) crystal phase. The phase formation processes entirely completed after 30-60 min at 730-740 degrees C with the formation of intriguing and unusual crystal structures.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Non-Crystalline Solids",
title = "Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders - effect of the holding temperature and the heating rate",
pages = "382-375",
volume = "481",
doi = "10.1016/j.jnoncrysol.2017.11.009"
}

Smiljanić, S., Karamanova, E., Grujić, S., Rogan, J., Stojanović, J., Matijašević, S. D.,& Karamanov, A.. (2018). Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders - effect of the holding temperature and the heating rate. in Journal of Non-Crystalline Solids
Elsevier Science Bv, Amsterdam., 481, 375-382.
https://doi.org/10.1016/j.jnoncrysol.2017.11.009

Smiljanić S, Karamanova E, Grujić S, Rogan J, Stojanović J, Matijašević SD, Karamanov A. Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders - effect of the holding temperature and the heating rate. in Journal of Non-Crystalline Solids. 2018;481:375-382.
doi:10.1016/j.jnoncrysol.2017.11.009 .

Smiljanić, Sonja, Karamanova, Emilia, Grujić, Snežana, Rogan, Jelena, Stojanović, Jovica, Matijašević, Srđan D., Karamanov, Alexander, "Sintering, crystallization and foaming of La2O3 center dot SrO center dot 5B(2)O(3) glass powders - effect of the holding temperature and the heating rate" in Journal of Non-Crystalline Solids, 481 (2018):375-382,
https://doi.org/10.1016/j.jnoncrysol.2017.11.009 . .

TY  - JOUR
AU  - Matijašević, Srđan D.
AU  - Grujić, Snežana
AU  - Topalović, Vladimir S.
AU  - Nikolić, Jelena D.
AU  - Smiljanić, Sonja
AU  - Labus, Nebojša
AU  - Savić, Veljko
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3895
AB  - Crystallization kinetics of 22.5Li(2)O center dot 10Al(2)O(3)center dot 30GeO(2)center dot 37.5P(2)O(5) (mol%) glass was studied under non-isothermal condition using the differential thermal analysis (DTA). The study was performed by using the first crystallization peak temperature (T-p1) which belongs to the precipitation of LiGe2(PO4)(3) phase in the glass. The activation energy of glass crystallization (E-a) was determined using different isokinetic methods. The dependence of E-a on the degree of glass-crystal transformation (alpha) was studied using model-free isoconversional linear integral KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa) methods. It was shown that the E-a varies with a and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Non-Isothermal Crystallization of Lithium Germanophosphate Glass Studied by Different Kinetic Methods
EP  - 203
IS  - 2
SP  - 193
VL  - 50
DO  - 10.2298/SOS1802193M
ER  - 

@article{
author = "Matijašević, Srđan D. and Grujić, Snežana and Topalović, Vladimir S. and Nikolić, Jelena D. and Smiljanić, Sonja and Labus, Nebojša and Savić, Veljko",
year = "2018",
abstract = "Crystallization kinetics of 22.5Li(2)O center dot 10Al(2)O(3)center dot 30GeO(2)center dot 37.5P(2)O(5) (mol%) glass was studied under non-isothermal condition using the differential thermal analysis (DTA). The study was performed by using the first crystallization peak temperature (T-p1) which belongs to the precipitation of LiGe2(PO4)(3) phase in the glass. The activation energy of glass crystallization (E-a) was determined using different isokinetic methods. The dependence of E-a on the degree of glass-crystal transformation (alpha) was studied using model-free isoconversional linear integral KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa) methods. It was shown that the E-a varies with a and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Non-Isothermal Crystallization of Lithium Germanophosphate Glass Studied by Different Kinetic Methods",
pages = "203-193",
number = "2",
volume = "50",
doi = "10.2298/SOS1802193M"
}

Matijašević, S. D., Grujić, S., Topalović, V. S., Nikolić, J. D., Smiljanić, S., Labus, N.,& Savić, V.. (2018). Non-Isothermal Crystallization of Lithium Germanophosphate Glass Studied by Different Kinetic Methods. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(2), 193-203.
https://doi.org/10.2298/SOS1802193M

Matijašević SD, Grujić S, Topalović VS, Nikolić JD, Smiljanić S, Labus N, Savić V. Non-Isothermal Crystallization of Lithium Germanophosphate Glass Studied by Different Kinetic Methods. in Science of Sintering. 2018;50(2):193-203.
doi:10.2298/SOS1802193M .

Matijašević, Srđan D., Grujić, Snežana, Topalović, Vladimir S., Nikolić, Jelena D., Smiljanić, Sonja, Labus, Nebojša, Savić, Veljko, "Non-Isothermal Crystallization of Lithium Germanophosphate Glass Studied by Different Kinetic Methods" in Science of Sintering, 50, no. 2 (2018):193-203,
https://doi.org/10.2298/SOS1802193M . .

TY  - JOUR
AU  - Topalović, Vladimir S.
AU  - Grujić, Snežana
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Nikolić, Jelena D.
AU  - Stojanović, Jovica
AU  - Smiljanić, Sonja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3583
AB  - Melt-quenching method was employed for obtaining a glass-ceramic with the following composition 42P(2)O(5). 40CaO.5SrO.10Na(2)O.3TiO(2) (mol%) glass. The crystallization and sintering behavior of glass have been studied by using DTA, HSM, XRD, FTIR and SEM methods. It was determined that the surface and volume crystallization mechanisms act simultaneously in bulk glass samples. The comparison of DTA and HSM data revealed that the sintering and crystallization processes are independent. The sintered calcium phosphate glass ceramic which contained bioactive beta-Ca-3(PO4)(2) and beta-Ca2P2O7 phases was successfully prepared. It was determined that during crystallization the primary phase in the precipitate was beta-Ca(PO3)(2). Other phases appearing in the resulting glass-ceramic were: alpha-Ca2P2O7, gamma-Ca2PO7, Ca4P6O19 and CaHPO4(H2O)(2). Crystalline phases containing Sr and Ti were not detected. SEM analysis of the glass-ceramic microstructure revealed surface crystallization of glass particles and plate-like morphology of crystal growth. The result of the in vitro bioactivity showed that no apatite layer was formed on the surface of the as-prepared glass-ceramic samples after immersion in the simulated body fluid (SBF).
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Bioactive glass-ceramics prepared by powder sintering and crystallization of polyphosphate glass containing strontium
EP  - 12069
IS  - 15
SP  - 12061
VL  - 43
DO  - 10.1016/j.ceramint.2017.06.061
ER  - 

@article{
author = "Topalović, Vladimir S. and Grujić, Snežana and Živanović, Vladimir D. and Matijašević, Srđan D. and Nikolić, Jelena D. and Stojanović, Jovica and Smiljanić, Sonja",
year = "2017",
abstract = "Melt-quenching method was employed for obtaining a glass-ceramic with the following composition 42P(2)O(5). 40CaO.5SrO.10Na(2)O.3TiO(2) (mol%) glass. The crystallization and sintering behavior of glass have been studied by using DTA, HSM, XRD, FTIR and SEM methods. It was determined that the surface and volume crystallization mechanisms act simultaneously in bulk glass samples. The comparison of DTA and HSM data revealed that the sintering and crystallization processes are independent. The sintered calcium phosphate glass ceramic which contained bioactive beta-Ca-3(PO4)(2) and beta-Ca2P2O7 phases was successfully prepared. It was determined that during crystallization the primary phase in the precipitate was beta-Ca(PO3)(2). Other phases appearing in the resulting glass-ceramic were: alpha-Ca2P2O7, gamma-Ca2PO7, Ca4P6O19 and CaHPO4(H2O)(2). Crystalline phases containing Sr and Ti were not detected. SEM analysis of the glass-ceramic microstructure revealed surface crystallization of glass particles and plate-like morphology of crystal growth. The result of the in vitro bioactivity showed that no apatite layer was formed on the surface of the as-prepared glass-ceramic samples after immersion in the simulated body fluid (SBF).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Bioactive glass-ceramics prepared by powder sintering and crystallization of polyphosphate glass containing strontium",
pages = "12069-12061",
number = "15",
volume = "43",
doi = "10.1016/j.ceramint.2017.06.061"
}

Topalović, V. S., Grujić, S., Živanović, V. D., Matijašević, S. D., Nikolić, J. D., Stojanović, J.,& Smiljanić, S.. (2017). Bioactive glass-ceramics prepared by powder sintering and crystallization of polyphosphate glass containing strontium. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(15), 12061-12069.
https://doi.org/10.1016/j.ceramint.2017.06.061

Topalović VS, Grujić S, Živanović VD, Matijašević SD, Nikolić JD, Stojanović J, Smiljanić S. Bioactive glass-ceramics prepared by powder sintering and crystallization of polyphosphate glass containing strontium. in Ceramics International. 2017;43(15):12061-12069.
doi:10.1016/j.ceramint.2017.06.061 .

Topalović, Vladimir S., Grujić, Snežana, Živanović, Vladimir D., Matijašević, Srđan D., Nikolić, Jelena D., Stojanović, Jovica, Smiljanić, Sonja, "Bioactive glass-ceramics prepared by powder sintering and crystallization of polyphosphate glass containing strontium" in Ceramics International, 43, no. 15 (2017):12061-12069,
https://doi.org/10.1016/j.ceramint.2017.06.061 . .

TY  - JOUR
AU  - Nikolić, Jelena D.
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Živanović, Vladimir D.
AU  - Đošić, Marija
AU  - Matijašević, Srđan D.
AU  - Smiljanić, Sonja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3708
AB  - In this work, the dissolution behavior of a polyphosphate glass, with the composition 45P(2)O(5) center dot 3SiO(2) center dot 25K(2)O center dot 15CaO center dot 10MgO center dot ZnO center dot MnO (mol %), in simulated body fluid (SBF) at a temperature of 37 degrees C for different times was studied. Two powder sizes of the glass (granulation: 0.1-0.3 and 0.3-0.65 mm) and the bulk glass were investigated. The dissolution experiments were conducted under stationary conditions. Changes in the normalized mass release, normalized concentration of ions, pH values, and surface morphology were determined as a function of the dissolution time. The initial rates of glass powder dissolution and leaching of ions, as well as the diffusion coefficient of cations and the releasing rate of ions, during the hydrolysis process of glass were determined. It was shown that the investigated phosphate glass dissolves in SBF incongruently, with neither precipitation nor the formation of newly potentially toxic compounds, in a dissolution period 720 h.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Dissolution behavior of a polyphosphate glass in simulated body fluid
EP  - 342
IS  - 3
SP  - 329
VL  - 82
DO  - 10.2298/JSC161031009N
ER  - 

@article{
author = "Nikolić, Jelena D. and Tošić, Mihajlo B. and Grujić, Snežana and Živanović, Vladimir D. and Đošić, Marija and Matijašević, Srđan D. and Smiljanić, Sonja",
year = "2017",
abstract = "In this work, the dissolution behavior of a polyphosphate glass, with the composition 45P(2)O(5) center dot 3SiO(2) center dot 25K(2)O center dot 15CaO center dot 10MgO center dot ZnO center dot MnO (mol %), in simulated body fluid (SBF) at a temperature of 37 degrees C for different times was studied. Two powder sizes of the glass (granulation: 0.1-0.3 and 0.3-0.65 mm) and the bulk glass were investigated. The dissolution experiments were conducted under stationary conditions. Changes in the normalized mass release, normalized concentration of ions, pH values, and surface morphology were determined as a function of the dissolution time. The initial rates of glass powder dissolution and leaching of ions, as well as the diffusion coefficient of cations and the releasing rate of ions, during the hydrolysis process of glass were determined. It was shown that the investigated phosphate glass dissolves in SBF incongruently, with neither precipitation nor the formation of newly potentially toxic compounds, in a dissolution period 720 h.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Dissolution behavior of a polyphosphate glass in simulated body fluid",
pages = "342-329",
number = "3",
volume = "82",
doi = "10.2298/JSC161031009N"
}

Nikolić, J. D., Tošić, M. B., Grujić, S., Živanović, V. D., Đošić, M., Matijašević, S. D.,& Smiljanić, S.. (2017). Dissolution behavior of a polyphosphate glass in simulated body fluid. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(3), 329-342.
https://doi.org/10.2298/JSC161031009N

Nikolić JD, Tošić MB, Grujić S, Živanović VD, Đošić M, Matijašević SD, Smiljanić S. Dissolution behavior of a polyphosphate glass in simulated body fluid. in Journal of the Serbian Chemical Society. 2017;82(3):329-342.
doi:10.2298/JSC161031009N .

Nikolić, Jelena D., Tošić, Mihajlo B., Grujić, Snežana, Živanović, Vladimir D., Đošić, Marija, Matijašević, Srđan D., Smiljanić, Sonja, "Dissolution behavior of a polyphosphate glass in simulated body fluid" in Journal of the Serbian Chemical Society, 82, no. 3 (2017):329-342,
https://doi.org/10.2298/JSC161031009N . .

TY  - JOUR
AU  - Nikolić, Jelena D.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Stojanović, Jovica
AU  - Grujić, Snežana
AU  - Smiljanić, Sonja
AU  - Topalović, Vladimir S.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3398
AB  - The crystallization and sintering behaviors of polyphosphate glass doped with trace elements Zn and Mn were examined. The heating experiments on bulk and powder glass samples were performed. The parent glass revealed low crystallization ability and the glass crystallization carried out under simultaneous acting of the surface and volume mechanisms. The bulk glass sample isothermally heated at T
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Crystallization and sintering behaviors of the polyphosphate glass doped with Zn and Mn
EP  - 592
IS  - 2
SP  - 585
VL  - 124
DO  - 10.1007/s10973-015-5184-x
ER  - 

@article{
author = "Nikolić, Jelena D. and Živanović, Vladimir D. and Matijašević, Srđan D. and Stojanović, Jovica and Grujić, Snežana and Smiljanić, Sonja and Topalović, Vladimir S.",
year = "2016",
abstract = "The crystallization and sintering behaviors of polyphosphate glass doped with trace elements Zn and Mn were examined. The heating experiments on bulk and powder glass samples were performed. The parent glass revealed low crystallization ability and the glass crystallization carried out under simultaneous acting of the surface and volume mechanisms. The bulk glass sample isothermally heated at T",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Crystallization and sintering behaviors of the polyphosphate glass doped with Zn and Mn",
pages = "592-585",
number = "2",
volume = "124",
doi = "10.1007/s10973-015-5184-x"
}

Nikolić, J. D., Živanović, V. D., Matijašević, S. D., Stojanović, J., Grujić, S., Smiljanić, S.,& Topalović, V. S.. (2016). Crystallization and sintering behaviors of the polyphosphate glass doped with Zn and Mn. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 124(2), 585-592.
https://doi.org/10.1007/s10973-015-5184-x

Nikolić JD, Živanović VD, Matijašević SD, Stojanović J, Grujić S, Smiljanić S, Topalović VS. Crystallization and sintering behaviors of the polyphosphate glass doped with Zn and Mn. in Journal of Thermal Analysis and Calorimetry. 2016;124(2):585-592.
doi:10.1007/s10973-015-5184-x .

Nikolić, Jelena D., Živanović, Vladimir D., Matijašević, Srđan D., Stojanović, Jovica, Grujić, Snežana, Smiljanić, Sonja, Topalović, Vladimir S., "Crystallization and sintering behaviors of the polyphosphate glass doped with Zn and Mn" in Journal of Thermal Analysis and Calorimetry, 124, no. 2 (2016):585-592,
https://doi.org/10.1007/s10973-015-5184-x . .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
AU  - Tošić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Nikolić, Jelena D.
AU  - Topalović, Vladimir S.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3451
AB  - The selected lanthanum-strontium borate glasses were prepared by a conventional melt-quenching technique. The compositions of the investigated glasses were chosen to be: 5.7, 9.5, 14.3, 19.1 mol% for La2O3, 22.9, 19.1, 14.3, 9.5 mol% for SrO and 71.4 mol% for B2O3. The density, molar volume, oxygen molar volume, oxygen packing density, oxygen/boron ratios and structural transformations in the glass network were investigated according to the substitution of SrO by La2O3. The density and the molar volume increased in parallel with La2O3 content increase. Simultaneously, oxygen molar volume values increased while the oxygen packing density values decreased. A hot stage microscope (HSM) and a differential thermal analysis (DTA) were used to determine the characteristic temperatures. By increasing the content of lanthanum, the glass transition temperatures, changed with the same trend as the molar volume. Glass stability parameters were calculated from the temperatures obtained by DTA and HSM. The HSM results were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tamman (VFT) equation.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Effect of la2o3 on the structure and the properties of strontium borate glasses
EP  - 115
IS  - 1
SP  - 111
VL  - 22
DO  - 10.2298/CICEQ150213031S
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana and Tošić, Mihajlo B. and Živanović, Vladimir D. and Matijašević, Srđan D. and Nikolić, Jelena D. and Topalović, Vladimir S.",
year = "2016",
abstract = "The selected lanthanum-strontium borate glasses were prepared by a conventional melt-quenching technique. The compositions of the investigated glasses were chosen to be: 5.7, 9.5, 14.3, 19.1 mol% for La2O3, 22.9, 19.1, 14.3, 9.5 mol% for SrO and 71.4 mol% for B2O3. The density, molar volume, oxygen molar volume, oxygen packing density, oxygen/boron ratios and structural transformations in the glass network were investigated according to the substitution of SrO by La2O3. The density and the molar volume increased in parallel with La2O3 content increase. Simultaneously, oxygen molar volume values increased while the oxygen packing density values decreased. A hot stage microscope (HSM) and a differential thermal analysis (DTA) were used to determine the characteristic temperatures. By increasing the content of lanthanum, the glass transition temperatures, changed with the same trend as the molar volume. Glass stability parameters were calculated from the temperatures obtained by DTA and HSM. The HSM results were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tamman (VFT) equation.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Effect of la2o3 on the structure and the properties of strontium borate glasses",
pages = "115-111",
number = "1",
volume = "22",
doi = "10.2298/CICEQ150213031S"
}

Smiljanić, S., Grujić, S., Tošić, M. B., Živanović, V. D., Matijašević, S. D., Nikolić, J. D.,& Topalović, V. S.. (2016). Effect of la2o3 on the structure and the properties of strontium borate glasses. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 22(1), 111-115.
https://doi.org/10.2298/CICEQ150213031S

Smiljanić S, Grujić S, Tošić MB, Živanović VD, Matijašević SD, Nikolić JD, Topalović VS. Effect of la2o3 on the structure and the properties of strontium borate glasses. in Chemical Industry & Chemical Engineering Quarterly. 2016;22(1):111-115.
doi:10.2298/CICEQ150213031S .

Smiljanić, Sonja, Grujić, Snežana, Tošić, Mihajlo B., Živanović, Vladimir D., Matijašević, Srđan D., Nikolić, Jelena D., Topalović, Vladimir S., "Effect of la2o3 on the structure and the properties of strontium borate glasses" in Chemical Industry & Chemical Engineering Quarterly, 22, no. 1 (2016):111-115,
https://doi.org/10.2298/CICEQ150213031S . .

TY  - JOUR
AU  - Živanović, Vladimir D.
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Matijašević, Srđan D.
AU  - Stojanović, Jovica
AU  - Nikolić, J. D.
AU  - Smiljanić, Sonja
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3034
AB  - In this study, the crystallization of 30Li(2)O center dot 15Nb(2)O(5)center dot 50SiO(2)center dot 5TiO(2) (mol%) glass was examined. The parent glass was prepared by the standard melt quenching method, and the investigations were performed under non-isothermal and isothermal conditions using the DTA, XRD, SEM and EDS methods. The results revealed primary crystallization of this glass and the dendritic morphology of crystal growth. Three crystalline phases were formed in the glass matrix during crystallization, whereby LiNbO3 was formed as the primary phase, followed by Li2Si2O5 and SiO2 as the secondary. The surface and volume mechanisms of crystallization occur. The condition that both the mechanisms were dominant was determined. In the case of volume crystallization, the characteristics of the nucleation process were examined. The kinetic parameters of crystallization under different mechanisms of crystallization were determined.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass
EP  - 1661
IS  - 3
SP  - 1653
VL  - 119
DO  - 10.1007/s10973-015-4390-x
ER  - 

@article{
author = "Živanović, Vladimir D. and Tošić, Mihajlo B. and Grujić, Snežana and Matijašević, Srđan D. and Stojanović, Jovica and Nikolić, J. D. and Smiljanić, Sonja",
year = "2015",
abstract = "In this study, the crystallization of 30Li(2)O center dot 15Nb(2)O(5)center dot 50SiO(2)center dot 5TiO(2) (mol%) glass was examined. The parent glass was prepared by the standard melt quenching method, and the investigations were performed under non-isothermal and isothermal conditions using the DTA, XRD, SEM and EDS methods. The results revealed primary crystallization of this glass and the dendritic morphology of crystal growth. Three crystalline phases were formed in the glass matrix during crystallization, whereby LiNbO3 was formed as the primary phase, followed by Li2Si2O5 and SiO2 as the secondary. The surface and volume mechanisms of crystallization occur. The condition that both the mechanisms were dominant was determined. In the case of volume crystallization, the characteristics of the nucleation process were examined. The kinetic parameters of crystallization under different mechanisms of crystallization were determined.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass",
pages = "1661-1653",
number = "3",
volume = "119",
doi = "10.1007/s10973-015-4390-x"
}

Živanović, V. D., Tošić, M. B., Grujić, S., Matijašević, S. D., Stojanović, J., Nikolić, J. D.,& Smiljanić, S.. (2015). DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 119(3), 1653-1661.
https://doi.org/10.1007/s10973-015-4390-x

Živanović VD, Tošić MB, Grujić S, Matijašević SD, Stojanović J, Nikolić JD, Smiljanić S. DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass. in Journal of Thermal Analysis and Calorimetry. 2015;119(3):1653-1661.
doi:10.1007/s10973-015-4390-x .

Živanović, Vladimir D., Tošić, Mihajlo B., Grujić, Snežana, Matijašević, Srđan D., Stojanović, Jovica, Nikolić, J. D., Smiljanić, Sonja, "DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass" in Journal of Thermal Analysis and Calorimetry, 119, no. 3 (2015):1653-1661,
https://doi.org/10.1007/s10973-015-4390-x . .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
AU  - Tošić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan D.
AU  - Nikolić, Jelena D.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2800
AB  - Glasses with a constant B2O3 and an increasing La2O3 content in the system La2O3-SrO-B2O3 were obtained by the usual melt quenching procedure. The crystallization and sinterability of the glasses were investigated by hot stage microscopy (HSM), differential thermal analysis (DTA), X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). XRD analysis of the bulk samples evidenced the formation of the crystalline phases: La2SrB10O19, SrB6O10 and SrLaBO4. XRD and TEM/SAED analyses showed a polymorphic crystallization of the glass sample containing 14.3 mol% La2O3 with precipitation of the La2SrB10O19 phase. SEM analysis confirmed the surface crystallization mechanism of this sample. The kinetics of crystallization of the same sample was examined by DTA and the activation energy of crystal growth was calculated by the Kissinger model to be E-a=458 +/- 63 kJ mol(-1).
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3
EP  - 305
IS  - 1
SP  - 297
VL  - 40
DO  - 10.1016/j.ceramint.2013.06.002
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana and Tošić, Mihajlo B. and Živanović, Vladimir D. and Stojanović, Jovica and Matijašević, Srđan D. and Nikolić, Jelena D.",
year = "2014",
abstract = "Glasses with a constant B2O3 and an increasing La2O3 content in the system La2O3-SrO-B2O3 were obtained by the usual melt quenching procedure. The crystallization and sinterability of the glasses were investigated by hot stage microscopy (HSM), differential thermal analysis (DTA), X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). XRD analysis of the bulk samples evidenced the formation of the crystalline phases: La2SrB10O19, SrB6O10 and SrLaBO4. XRD and TEM/SAED analyses showed a polymorphic crystallization of the glass sample containing 14.3 mol% La2O3 with precipitation of the La2SrB10O19 phase. SEM analysis confirmed the surface crystallization mechanism of this sample. The kinetics of crystallization of the same sample was examined by DTA and the activation energy of crystal growth was calculated by the Kissinger model to be E-a=458 +/- 63 kJ mol(-1).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3",
pages = "305-297",
number = "1",
volume = "40",
doi = "10.1016/j.ceramint.2013.06.002"
}

Smiljanić, S., Grujić, S., Tošić, M. B., Živanović, V. D., Stojanović, J., Matijašević, S. D.,& Nikolić, J. D.. (2014). Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(1), 297-305.
https://doi.org/10.1016/j.ceramint.2013.06.002

Smiljanić S, Grujić S, Tošić MB, Živanović VD, Stojanović J, Matijašević SD, Nikolić JD. Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3. in Ceramics International. 2014;40(1):297-305.
doi:10.1016/j.ceramint.2013.06.002 .

Smiljanić, Sonja, Grujić, Snežana, Tošić, Mihajlo B., Živanović, Vladimir D., Stojanović, Jovica, Matijašević, Srđan D., Nikolić, Jelena D., "Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3" in Ceramics International, 40, no. 1 (2014):297-305,
https://doi.org/10.1016/j.ceramint.2013.06.002 . .

TY  - JOUR
AU  - Nikolić, Jelena D.
AU  - Smiljanić, Sonja
AU  - Matijašević, Srđan D.
AU  - Živanović, Vladimir D.
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Stojanović, Jovica
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2333
AB  - The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal crystallization conditions. DTA, XRD and SEM methods were employed for analyses. It was confirmed that this glass crystallizes by the volume crystallization mechanism. The results also showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed and the traces of GeO2 as a secondary one is present. The crystallization process occurred at a high homogeneous nucleation rate and the spherical morphology of crystal growth. By applying the Kissinger relation the activation energy of crystal growth Ea = 462 kJ/mol was determined.
PB  - University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system
EP  - 151
IS  - 4
SP  - 147
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2333
ER  - 

@article{
author = "Nikolić, Jelena D. and Smiljanić, Sonja and Matijašević, Srđan D. and Živanović, Vladimir D. and Tošić, Mihajlo B. and Grujić, Snežana and Stojanović, Jovica",
year = "2013",
abstract = "The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal crystallization conditions. DTA, XRD and SEM methods were employed for analyses. It was confirmed that this glass crystallizes by the volume crystallization mechanism. The results also showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed and the traces of GeO2 as a secondary one is present. The crystallization process occurred at a high homogeneous nucleation rate and the spherical morphology of crystal growth. By applying the Kissinger relation the activation energy of crystal growth Ea = 462 kJ/mol was determined.",
publisher = "University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system",
pages = "151-147",
number = "4",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2333"
}

Nikolić, J. D., Smiljanić, S., Matijašević, S. D., Živanović, V. D., Tošić, M. B., Grujić, S.,& Stojanović, J.. (2013). Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system. in Processing and Application of Ceramics
University of Novi Sad., 7(4), 147-151.
https://hdl.handle.net/21.15107/rcub_technorep_2333

Nikolić JD, Smiljanić S, Matijašević SD, Živanović VD, Tošić MB, Grujić S, Stojanović J. Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system. in Processing and Application of Ceramics. 2013;7(4):147-151.
https://hdl.handle.net/21.15107/rcub_technorep_2333 .

Nikolić, Jelena D., Smiljanić, Sonja, Matijašević, Srđan D., Živanović, Vladimir D., Tošić, Mihajlo B., Grujić, Snežana, Stojanović, Jovica, "Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system" in Processing and Application of Ceramics, 7, no. 4 (2013):147-151,
https://hdl.handle.net/21.15107/rcub_technorep_2333 .

TY  - JOUR
AU  - Tošić, Mihajlo B.
AU  - Nikolić, J. D.
AU  - Grujić, Snežana
AU  - Živanović, Vladimir D.
AU  - Zildžović, Snežana
AU  - Matijašević, Srđan D.
AU  - Ždrale, Sonja V.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2540
AB  - The dissolution behavior of a polyphosphate glass with a molar ratio [M2O + MO]/P2O5 gt 1 in distilled water under static condition was studied. The leaching tests were performed with glass powder samples (0.1-0.65 mm) at T=15-50 degrees C for times up to 720 h. The mass loss of the samples, the changes of pH and the concentration of elements (P, K, Ca, Mg, Zn and Mn) in solution were determined. The effects of temperature, time and particle size were analyzed. The results of the tests showed a complex dissolution behavior of this glass. The selective dissolution of the glass components was determined. The mechanism of formation and the structure of dissolved glass layer were investigated. The effects of cations on the mechanisms and kinetics of dissolution of the polyphosphate glass are presented. The activation energy of dissolution, Ea, was determined to be 39 +/- 5 kJ/mol.
PB  - Elsevier, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions
EP  - 194
SP  - 185
VL  - 362
DO  - 10.1016/j.jnoncrysol.2012.11.024
ER  - 

@article{
author = "Tošić, Mihajlo B. and Nikolić, J. D. and Grujić, Snežana and Živanović, Vladimir D. and Zildžović, Snežana and Matijašević, Srđan D. and Ždrale, Sonja V.",
year = "2013",
abstract = "The dissolution behavior of a polyphosphate glass with a molar ratio [M2O + MO]/P2O5 gt 1 in distilled water under static condition was studied. The leaching tests were performed with glass powder samples (0.1-0.65 mm) at T=15-50 degrees C for times up to 720 h. The mass loss of the samples, the changes of pH and the concentration of elements (P, K, Ca, Mg, Zn and Mn) in solution were determined. The effects of temperature, time and particle size were analyzed. The results of the tests showed a complex dissolution behavior of this glass. The selective dissolution of the glass components was determined. The mechanism of formation and the structure of dissolved glass layer were investigated. The effects of cations on the mechanisms and kinetics of dissolution of the polyphosphate glass are presented. The activation energy of dissolution, Ea, was determined to be 39 +/- 5 kJ/mol.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Non-Crystalline Solids",
title = "Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions",
pages = "194-185",
volume = "362",
doi = "10.1016/j.jnoncrysol.2012.11.024"
}

Tošić, M. B., Nikolić, J. D., Grujić, S., Živanović, V. D., Zildžović, S., Matijašević, S. D.,& Ždrale, S. V.. (2013). Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions. in Journal of Non-Crystalline Solids
Elsevier, Amsterdam., 362, 185-194.
https://doi.org/10.1016/j.jnoncrysol.2012.11.024

Tošić MB, Nikolić JD, Grujić S, Živanović VD, Zildžović S, Matijašević SD, Ždrale SV. Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions. in Journal of Non-Crystalline Solids. 2013;362:185-194.
doi:10.1016/j.jnoncrysol.2012.11.024 .

Tošić, Mihajlo B., Nikolić, J. D., Grujić, Snežana, Živanović, Vladimir D., Zildžović, Snežana, Matijašević, Srđan D., Ždrale, Sonja V., "Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions" in Journal of Non-Crystalline Solids, 362 (2013):185-194,
https://doi.org/10.1016/j.jnoncrysol.2012.11.024 . .

TY  - JOUR
AU  - Matijašević, Srđan D.
AU  - Tošić, Mihajlo B.
AU  - Stojanović, Jovica
AU  - Grujić, Snežana
AU  - Živanović, Vladimir D.
AU  - Nikolić, Jelena D.
AU  - Đošić, Marija
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1981
AB  - Potassium germanate glass with molar ratio [GeO2]/[K2O] = 1.2 and Nb2O5 content of 34 mol% have been synthesized by a melt-quenching method. The crystallization behavior under non-isothermal and isothermal crystallization conditions was investigated. The results showed that this glass exposed complex primary crystallization. In the temperature range  lt  800 degrees C primary phase is K3.8Nb5Ge3O20.4, while K6Nb6Ge4O26 appeared as primary phase at temperatures  gt  800 degrees C. K10Nb22Ge4O68 and metastable KNbO3 and K4Nb6O17 were formed as secondary phases. The crystallization commenced at T  gt  640 degrees C with high homogeneous nucleation rate and spherulite crystal growth morphology. DTA curves recorded for powder samples particle size  lt  0.1 mm revealed three exothermic peaks and three endothermic peaks within temperature range of T = 640-940 degrees C, while the DTA curves recorded for powder samples particle size  gt  0.1 mm showed two exothermic peaks and two endothermic peaks within temperature range of T = 640-1020 degrees C. The analysis of the dominant crystallization mechanism of powder glass sample and kinetics of crystallization is presented.
PB  - University of Chemistry and Technology, Prague
T2  - Ceramics - Silikaty
T1  - The crystallization of potassium germanate glass with high content of niobium oxide
EP  - 68
IS  - 1
SP  - 61
VL  - 56
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1981
ER  - 

@article{
author = "Matijašević, Srđan D. and Tošić, Mihajlo B. and Stojanović, Jovica and Grujić, Snežana and Živanović, Vladimir D. and Nikolić, Jelena D. and Đošić, Marija",
year = "2012",
abstract = "Potassium germanate glass with molar ratio [GeO2]/[K2O] = 1.2 and Nb2O5 content of 34 mol% have been synthesized by a melt-quenching method. The crystallization behavior under non-isothermal and isothermal crystallization conditions was investigated. The results showed that this glass exposed complex primary crystallization. In the temperature range  lt  800 degrees C primary phase is K3.8Nb5Ge3O20.4, while K6Nb6Ge4O26 appeared as primary phase at temperatures  gt  800 degrees C. K10Nb22Ge4O68 and metastable KNbO3 and K4Nb6O17 were formed as secondary phases. The crystallization commenced at T  gt  640 degrees C with high homogeneous nucleation rate and spherulite crystal growth morphology. DTA curves recorded for powder samples particle size  lt  0.1 mm revealed three exothermic peaks and three endothermic peaks within temperature range of T = 640-940 degrees C, while the DTA curves recorded for powder samples particle size  gt  0.1 mm showed two exothermic peaks and two endothermic peaks within temperature range of T = 640-1020 degrees C. The analysis of the dominant crystallization mechanism of powder glass sample and kinetics of crystallization is presented.",
publisher = "University of Chemistry and Technology, Prague",
journal = "Ceramics - Silikaty",
title = "The crystallization of potassium germanate glass with high content of niobium oxide",
pages = "68-61",
number = "1",
volume = "56",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1981"
}

Matijašević, S. D., Tošić, M. B., Stojanović, J., Grujić, S., Živanović, V. D., Nikolić, J. D.,& Đošić, M.. (2012). The crystallization of potassium germanate glass with high content of niobium oxide. in Ceramics - Silikaty
University of Chemistry and Technology, Prague., 56(1), 61-68.
https://hdl.handle.net/21.15107/rcub_technorep_1981

Matijašević SD, Tošić MB, Stojanović J, Grujić S, Živanović VD, Nikolić JD, Đošić M. The crystallization of potassium germanate glass with high content of niobium oxide. in Ceramics - Silikaty. 2012;56(1):61-68.
https://hdl.handle.net/21.15107/rcub_technorep_1981 .

Matijašević, Srđan D., Tošić, Mihajlo B., Stojanović, Jovica, Grujić, Snežana, Živanović, Vladimir D., Nikolić, Jelena D., Đošić, Marija, "The crystallization of potassium germanate glass with high content of niobium oxide" in Ceramics - Silikaty, 56, no. 1 (2012):61-68,
https://hdl.handle.net/21.15107/rcub_technorep_1981 .

TY  - JOUR
AU  - Nikolić, Jelena
AU  - Tošić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
AU  - Ždrale, Sonja V.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2025
AB  - In this paper the new methods for reduction of NOx emission from glass melting furnaces were presented. The secondary measures are focused on development of different methods for elimination of nitrogen oxide from the smoke gasses. The main characteristics of the selective catalytic reduction process (SCR), selective non catalytic reduction process (SNCR) and 3R process were presented and some advantages and limitations of these processes were analyzed.
AB  - U ovom radu su prikazani novi postupci smanjenja emisije NOx iz peći za topljenje stakla. Zbog visokih temperatura do kojih se zagreva vazduh neophodan za sagorevanje dolazi do visoke emisije oksida NOx iz staklarskih peći. Sekundarne mere usmerene su na razvoj postupaka za uklanjanje azotnih oksida iz dimnih gasova. Dat je prikaz selektivno nekatalitičkog, selektivno katalitičkog redukcionog i 3R postupka kao i njihove prednosti i nedostaci.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Secondary measures for reduction of NOx emission in glass melting process
T1  - Sekundarni postupci smanjenja emisije oksida azota u procesu topljenja stakla
EP  - 556
IS  - 4
SP  - 553
VL  - 67
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2025
ER  - 

@article{
author = "Nikolić, Jelena and Tošić, Mihajlo B. and Živanović, Vladimir D. and Matijašević, Srđan D. and Zildžović, Snežana and Grujić, Snežana and Ždrale, Sonja V.",
year = "2012",
abstract = "In this paper the new methods for reduction of NOx emission from glass melting furnaces were presented. The secondary measures are focused on development of different methods for elimination of nitrogen oxide from the smoke gasses. The main characteristics of the selective catalytic reduction process (SCR), selective non catalytic reduction process (SNCR) and 3R process were presented and some advantages and limitations of these processes were analyzed., U ovom radu su prikazani novi postupci smanjenja emisije NOx iz peći za topljenje stakla. Zbog visokih temperatura do kojih se zagreva vazduh neophodan za sagorevanje dolazi do visoke emisije oksida NOx iz staklarskih peći. Sekundarne mere usmerene su na razvoj postupaka za uklanjanje azotnih oksida iz dimnih gasova. Dat je prikaz selektivno nekatalitičkog, selektivno katalitičkog redukcionog i 3R postupka kao i njihove prednosti i nedostaci.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Secondary measures for reduction of NOx emission in glass melting process, Sekundarni postupci smanjenja emisije oksida azota u procesu topljenja stakla",
pages = "556-553",
number = "4",
volume = "67",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2025"
}

Nikolić, J., Tošić, M. B., Živanović, V. D., Matijašević, S. D., Zildžović, S., Grujić, S.,& Ždrale, S. V.. (2012). Secondary measures for reduction of NOx emission in glass melting process. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 67(4), 553-556.
https://hdl.handle.net/21.15107/rcub_technorep_2025

Nikolić J, Tošić MB, Živanović VD, Matijašević SD, Zildžović S, Grujić S, Ždrale SV. Secondary measures for reduction of NOx emission in glass melting process. in Tehnika. 2012;67(4):553-556.
https://hdl.handle.net/21.15107/rcub_technorep_2025 .

Nikolić, Jelena, Tošić, Mihajlo B., Živanović, Vladimir D., Matijašević, Srđan D., Zildžović, Snežana, Grujić, Snežana, Ždrale, Sonja V., "Secondary measures for reduction of NOx emission in glass melting process" in Tehnika, 67, no. 4 (2012):553-556,
https://hdl.handle.net/21.15107/rcub_technorep_2025 .

TY  - JOUR
AU  - Vujošević, Ana
AU  - Lakić, Nada
AU  - Tošić, Mihajlo B.
AU  - Nikolić, Jelena
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
AU  - Ždrale, Sonja V.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2062
AB  - This paper investigates the possibility and justification of controlled release glass application as a new ecological material in the production of plants-seedlings of French marigold (Tagetes patula L.). During the investigation its influence on the development of the produced plants-seedlings was monitored. The seedlings were produced in poly-propylene containers (speedling system) and poly-propylene pots (pot system). The trial was conducted in the greenhouse at the Faculty of Agriculture in Belgrade during 2011. In the course of seedling production the glass granulation of  lt  0.5 mm was added in the following doses: 0, 1, 2, 3, and 4 g/l. The results of the research show a positive effect of controlled release glass application in the production of French marigold seedlings, since high quality seedlings were produced justifying its application. The best effect on the analyzed parameters of plant-seedling development was found when substrate was applied in the dose of 1 g/l.
AB  - U radu je ispitivana mogućnost i opravdanost primene stakla sa kontrolisanim otpuštanjem hranljivih elemenata kao novog ekološkog materijala u proizvodnji biljaka-rasada kadifice (Tagetes patula L.). Tokom istraživanja praćen je njegov uticaj na razvijenost proizvedenih biljaka-rasada. Biljke-rasada proizvedene su u polistirenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). Istraživanja su sprovedena u stakleniku Poljoprivrednog fakulteta u Beogradu tokom 2011. U toku proizvodnje rasada dodavano je ispitivano staklo granulacije  lt  0,5 mm u dozama 0-4 g/l. Rezultati istraživanja ukazuju na pozitivan efekat primenjenog stakla sa kontrolisanim otpuštanjem jona u proizvodnji biljaka-rasada kadifice. Njegovom primenom dobija se rasad bolje razvijenosti, te je njegova upotreba opravdana. Najbolji efekat na ispitivane parametre razvijenosti biljaka-rasada imala je doza od 1 g/l supstrata.
PB  - Institute of field and vegetable crops, Novi Sad
T2  - Ratarstvo i povrtarstvo
T1  - Application of controlled release glass in the production of French marigold (Tagetes patula L.)
T1  - Primena stakla sa kontrolisanim otpuštanjem hranljivih elemenata u proizvodnji rasada kadifice (Tagetes patula L.)
EP  - 16
IS  - 1
SP  - 12
VL  - 49
DO  - 10.5937/ratpov49-1137
ER  - 

@article{
author = "Vujošević, Ana and Lakić, Nada and Tošić, Mihajlo B. and Nikolić, Jelena and Živanović, Vladimir D. and Matijašević, Srđan D. and Zildžović, Snežana and Grujić, Snežana and Ždrale, Sonja V.",
year = "2012",
abstract = "This paper investigates the possibility and justification of controlled release glass application as a new ecological material in the production of plants-seedlings of French marigold (Tagetes patula L.). During the investigation its influence on the development of the produced plants-seedlings was monitored. The seedlings were produced in poly-propylene containers (speedling system) and poly-propylene pots (pot system). The trial was conducted in the greenhouse at the Faculty of Agriculture in Belgrade during 2011. In the course of seedling production the glass granulation of  lt  0.5 mm was added in the following doses: 0, 1, 2, 3, and 4 g/l. The results of the research show a positive effect of controlled release glass application in the production of French marigold seedlings, since high quality seedlings were produced justifying its application. The best effect on the analyzed parameters of plant-seedling development was found when substrate was applied in the dose of 1 g/l., U radu je ispitivana mogućnost i opravdanost primene stakla sa kontrolisanim otpuštanjem hranljivih elemenata kao novog ekološkog materijala u proizvodnji biljaka-rasada kadifice (Tagetes patula L.). Tokom istraživanja praćen je njegov uticaj na razvijenost proizvedenih biljaka-rasada. Biljke-rasada proizvedene su u polistirenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). Istraživanja su sprovedena u stakleniku Poljoprivrednog fakulteta u Beogradu tokom 2011. U toku proizvodnje rasada dodavano je ispitivano staklo granulacije  lt  0,5 mm u dozama 0-4 g/l. Rezultati istraživanja ukazuju na pozitivan efekat primenjenog stakla sa kontrolisanim otpuštanjem jona u proizvodnji biljaka-rasada kadifice. Njegovom primenom dobija se rasad bolje razvijenosti, te je njegova upotreba opravdana. Najbolji efekat na ispitivane parametre razvijenosti biljaka-rasada imala je doza od 1 g/l supstrata.",
publisher = "Institute of field and vegetable crops, Novi Sad",
journal = "Ratarstvo i povrtarstvo",
title = "Application of controlled release glass in the production of French marigold (Tagetes patula L.), Primena stakla sa kontrolisanim otpuštanjem hranljivih elemenata u proizvodnji rasada kadifice (Tagetes patula L.)",
pages = "16-12",
number = "1",
volume = "49",
doi = "10.5937/ratpov49-1137"
}

Vujošević, A., Lakić, N., Tošić, M. B., Nikolić, J., Živanović, V. D., Matijašević, S. D., Zildžović, S., Grujić, S.,& Ždrale, S. V.. (2012). Application of controlled release glass in the production of French marigold (Tagetes patula L.). in Ratarstvo i povrtarstvo
Institute of field and vegetable crops, Novi Sad., 49(1), 12-16.
https://doi.org/10.5937/ratpov49-1137

Vujošević A, Lakić N, Tošić MB, Nikolić J, Živanović VD, Matijašević SD, Zildžović S, Grujić S, Ždrale SV. Application of controlled release glass in the production of French marigold (Tagetes patula L.). in Ratarstvo i povrtarstvo. 2012;49(1):12-16.
doi:10.5937/ratpov49-1137 .

Vujošević, Ana, Lakić, Nada, Tošić, Mihajlo B., Nikolić, Jelena, Živanović, Vladimir D., Matijašević, Srđan D., Zildžović, Snežana, Grujić, Snežana, Ždrale, Sonja V., "Application of controlled release glass in the production of French marigold (Tagetes patula L.)" in Ratarstvo i povrtarstvo, 49, no. 1 (2012):12-16,
https://doi.org/10.5937/ratpov49-1137 . .

TY  - JOUR
AU  - Matijašević, Srđan D.
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Stojanović, Jovica
AU  - Živanović, Vladimir D.
AU  - Nikolić, J. D.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1832
AB  - The effect of K2O content on the crystallization of niobium germanate glasses with 22.7- 24.27 wt% of GeO2 and 54.59-57.48 wt% of Nb2O5 was examined. The glasses crystallize by primary crystallization and the formed crystalline phases were K6Nb6Ge4O26, K3.8Nb5Ge3O20.4 and KNbO3. Increasing the K2O content caused a decrease in the GeO2 content of the primary phases. The effect of the K2O content on the kinetics of primary crystallization was analyzed. It was demonstrated that an increase of the K2O content decreased the activation energy of crystal growth at first of the crystallization peaks (Ec1). At second crystallization peaks the activation energies of crystal growth increased (Ec2).
AB  - Ispitan je uticaj sadržaja K2O na kristalizaciju niobijum germanatnih stakala sa 22,7-24,27 mas % GeO2 i 54,59-57,48 mas % Nb2O5. Ova stakla kristališu primarnom kristalizacijom i stvaraju se kristalne faze K6Nb6Ge4O26, K3.8Nb5Ge3O20.4 i KNbO3. Povećanje sadržaja K2O prouzrokuje smanjenje sadržaja GeO2 u primarnim fazama. Analiziran je uticaj sadržaja K2O na kinetiku primarne kristalizacije. Pokazano je da povećanje sadržaja K2O smanjuje energiju aktivacije rasta kristala na prvom kristalizacionom piku (Ec1). Na drugom kristalizacionom piku energije aktivacije rasta kristala se povećavaju (Ec2).
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - The effect of K2O on the crystallization of niobium germanate glasses
EP  - 53
IS  - 1
SP  - 47
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1832
ER  - 

@article{
author = "Matijašević, Srđan D. and Tošić, Mihajlo B. and Grujić, Snežana and Stojanović, Jovica and Živanović, Vladimir D. and Nikolić, J. D.",
year = "2011",
abstract = "The effect of K2O content on the crystallization of niobium germanate glasses with 22.7- 24.27 wt% of GeO2 and 54.59-57.48 wt% of Nb2O5 was examined. The glasses crystallize by primary crystallization and the formed crystalline phases were K6Nb6Ge4O26, K3.8Nb5Ge3O20.4 and KNbO3. Increasing the K2O content caused a decrease in the GeO2 content of the primary phases. The effect of the K2O content on the kinetics of primary crystallization was analyzed. It was demonstrated that an increase of the K2O content decreased the activation energy of crystal growth at first of the crystallization peaks (Ec1). At second crystallization peaks the activation energies of crystal growth increased (Ec2)., Ispitan je uticaj sadržaja K2O na kristalizaciju niobijum germanatnih stakala sa 22,7-24,27 mas % GeO2 i 54,59-57,48 mas % Nb2O5. Ova stakla kristališu primarnom kristalizacijom i stvaraju se kristalne faze K6Nb6Ge4O26, K3.8Nb5Ge3O20.4 i KNbO3. Povećanje sadržaja K2O prouzrokuje smanjenje sadržaja GeO2 u primarnim fazama. Analiziran je uticaj sadržaja K2O na kinetiku primarne kristalizacije. Pokazano je da povećanje sadržaja K2O smanjuje energiju aktivacije rasta kristala na prvom kristalizacionom piku (Ec1). Na drugom kristalizacionom piku energije aktivacije rasta kristala se povećavaju (Ec2).",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "The effect of K2O on the crystallization of niobium germanate glasses",
pages = "53-47",
number = "1",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1832"
}

Matijašević, S. D., Tošić, M. B., Grujić, S., Stojanović, J., Živanović, V. D.,& Nikolić, J. D.. (2011). The effect of K2O on the crystallization of niobium germanate glasses. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 43(1), 47-53.
https://hdl.handle.net/21.15107/rcub_technorep_1832

Matijašević SD, Tošić MB, Grujić S, Stojanović J, Živanović VD, Nikolić JD. The effect of K2O on the crystallization of niobium germanate glasses. in Science of Sintering. 2011;43(1):47-53.
https://hdl.handle.net/21.15107/rcub_technorep_1832 .

Matijašević, Srđan D., Tošić, Mihajlo B., Grujić, Snežana, Stojanović, Jovica, Živanović, Vladimir D., Nikolić, J. D., "The effect of K2O on the crystallization of niobium germanate glasses" in Science of Sintering, 43, no. 1 (2011):47-53,
https://hdl.handle.net/21.15107/rcub_technorep_1832 .

TY  - JOUR
AU  - Matijašević, Srđan D.
AU  - Živanović, Vladimir D.
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena D.
AU  - Ždrale, Sonja V.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1821
AB  - This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination of phase composition and microstructure of crystallized glass. It was detected that this glass crystallizes by the surface crystallization mechanism. SEM micrographs of the crystallized samples revealed that the crystals grow in the form of dendrites. The glass-ceramics with complex phase composition was obtained. Three crystalline phases were detected where LiNbO3 has grown as primary phase and a secondary ones Li2Si2O5 and SiO2 appeared. The calculated average crystallite sizes are: 27 nm for LiNbO3 , 115 nm for Li2Si2O5 and 45 nm for SiO2 . From the experimental data an activation energy of crystals growth, calculated using the Kissinger relation, is Ea = 275 ±10 KJ / mol.
PB  - University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2
EP  - 227
IS  - 4
SP  - 223
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1821
ER  - 

@article{
author = "Matijašević, Srđan D. and Živanović, Vladimir D. and Tošić, Mihajlo B. and Grujić, Snežana and Stojanović, Jovica and Nikolić, Jelena D. and Ždrale, Sonja V.",
year = "2011",
abstract = "This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination of phase composition and microstructure of crystallized glass. It was detected that this glass crystallizes by the surface crystallization mechanism. SEM micrographs of the crystallized samples revealed that the crystals grow in the form of dendrites. The glass-ceramics with complex phase composition was obtained. Three crystalline phases were detected where LiNbO3 has grown as primary phase and a secondary ones Li2Si2O5 and SiO2 appeared. The calculated average crystallite sizes are: 27 nm for LiNbO3 , 115 nm for Li2Si2O5 and 45 nm for SiO2 . From the experimental data an activation energy of crystals growth, calculated using the Kissinger relation, is Ea = 275 ±10 KJ / mol.",
publisher = "University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2",
pages = "227-223",
number = "4",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1821"
}

Matijašević, S. D., Živanović, V. D., Tošić, M. B., Grujić, S., Stojanović, J., Nikolić, J. D.,& Ždrale, S. V.. (2011). Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2. in Processing and Application of Ceramics
University of Novi Sad., 5(4), 223-227.
https://hdl.handle.net/21.15107/rcub_technorep_1821

Matijašević SD, Živanović VD, Tošić MB, Grujić S, Stojanović J, Nikolić JD, Ždrale SV. Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2. in Processing and Application of Ceramics. 2011;5(4):223-227.
https://hdl.handle.net/21.15107/rcub_technorep_1821 .

Matijašević, Srđan D., Živanović, Vladimir D., Tošić, Mihajlo B., Grujić, Snežana, Stojanović, Jovica, Nikolić, Jelena D., Ždrale, Sonja V., "Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2" in Processing and Application of Ceramics, 5, no. 4 (2011):223-227,
https://hdl.handle.net/21.15107/rcub_technorep_1821 .

TY  - JOUR
AU  - Nikolić, Jelena D.
AU  - Tošić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan D.
AU  - Živanović, Deana B.
AU  - Grujić, Snežana
AU  - Ždrale, Sonja V.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1828
AB  - The nitrogen oxides emitted to atmosphere effect significantly on formation of photochemical smog, acidic rains and destroying of ozone shell of the earth. Therefore, the regulations for limited emission of nitrogen oxides to atmosphere become very strict. Glass manufacturing is a high-temperature, energy-intensive activity, because of the high temperature NOx emissions are extremely high. NOx emissions could be reduced by primary process modifications measures end secondary post-combustion measures. Primary process modifications are usually based on the following techniques: stoichiometric combustion and advanced burners systems, staged combustion (air- or fuelstaged), recircylation of flue gasses.
AB  - Razvojem tehnike i tehnologije javlja se potreba za većom proizvodnjom energije. Iako se danas uvode u upotrebu i drugi izvori energije, još uvek je najzastupljenije dobijanje energije u procesu sagorevanja goriva. Zbog visokih temperatura koje nastaju pri sagorevanje dolazi do velike emisije NOx oksida. U ovom radu opisane su mere i metode kojima je moguće smanjiti emisiju NOx u procesima dobijanja stakla.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Measures and methods for NOx reduction from glass-melting furnaces
T1  - Mere i metode za smanjenja emisije oksida azota iz peći za topljenje stakla
EP  - 398
IS  - 3
SP  - 393
VL  - 66
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1828
ER  - 

@article{
author = "Nikolić, Jelena D. and Tošić, Mihajlo B. and Živanović, Vladimir D. and Matijašević, Srđan D. and Živanović, Deana B. and Grujić, Snežana and Ždrale, Sonja V.",
year = "2011",
abstract = "The nitrogen oxides emitted to atmosphere effect significantly on formation of photochemical smog, acidic rains and destroying of ozone shell of the earth. Therefore, the regulations for limited emission of nitrogen oxides to atmosphere become very strict. Glass manufacturing is a high-temperature, energy-intensive activity, because of the high temperature NOx emissions are extremely high. NOx emissions could be reduced by primary process modifications measures end secondary post-combustion measures. Primary process modifications are usually based on the following techniques: stoichiometric combustion and advanced burners systems, staged combustion (air- or fuelstaged), recircylation of flue gasses., Razvojem tehnike i tehnologije javlja se potreba za većom proizvodnjom energije. Iako se danas uvode u upotrebu i drugi izvori energije, još uvek je najzastupljenije dobijanje energije u procesu sagorevanja goriva. Zbog visokih temperatura koje nastaju pri sagorevanje dolazi do velike emisije NOx oksida. U ovom radu opisane su mere i metode kojima je moguće smanjiti emisiju NOx u procesima dobijanja stakla.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Measures and methods for NOx reduction from glass-melting furnaces, Mere i metode za smanjenja emisije oksida azota iz peći za topljenje stakla",
pages = "398-393",
number = "3",
volume = "66",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1828"
}

Nikolić, J. D., Tošić, M. B., Živanović, V. D., Matijašević, S. D., Živanović, D. B., Grujić, S.,& Ždrale, S. V.. (2011). Measures and methods for NOx reduction from glass-melting furnaces. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 66(3), 393-398.
https://hdl.handle.net/21.15107/rcub_technorep_1828

Nikolić JD, Tošić MB, Živanović VD, Matijašević SD, Živanović DB, Grujić S, Ždrale SV. Measures and methods for NOx reduction from glass-melting furnaces. in Tehnika. 2011;66(3):393-398.
https://hdl.handle.net/21.15107/rcub_technorep_1828 .

Nikolić, Jelena D., Tošić, Mihajlo B., Živanović, Vladimir D., Matijašević, Srđan D., Živanović, Deana B., Grujić, Snežana, Ždrale, Sonja V., "Measures and methods for NOx reduction from glass-melting furnaces" in Tehnika, 66, no. 3 (2011):393-398,
https://hdl.handle.net/21.15107/rcub_technorep_1828 .

TY  - JOUR
AU  - Tošić, Mihajlo B.
AU  - Grujić, Snežana
AU  - Živanović, Vladimir D.
AU  - Nikolić, J. D.
AU  - Matijašević, Srđan D.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1653
AB  - The nucleation of germanate K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions was studied by the DTA method. The temperature ranges of nucleation and crystal growth of this glass partly overlap. The influence of the mass of the glass sample as well as, the time and temperature of the pre-DTA heat treatment on the DTA parameters T-p, (delta T)(p), and Delta T-p was investigated. A complex behavior of these parameters was evidenced. It was shown that for fixed temperatures, increasing the annealing time of the pre-DTA heat treatment resulted in a decrease in the temperature of the DTA peak (T-p). The curve of the dependence of DTA peak heights (delta T)(p) on time showed a maximum and the parameter Delta T-p continually increased with increasing time. The influence of the temperature of the pre-DTA heat treatment on the DTA parameters showed that for annealing times t gt t(ind), the dependences of T-p(-1) and Delta T-p vs. T corresponded to the dependence of Ion Tin the case when the regions of I and U partly overlapped. As shown, in this case. the change of (delta T)(p) vs. T is not convenient for an analysis of the nucleation behavior of the glass.
PB  - Elsevier, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - The nucleation of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions
EP  - 1391
IS  - 28-30
SP  - 1385
VL  - 356
DO  - 10.1016/j.jnoncrysol.2010.05.047
ER  - 

@article{
author = "Tošić, Mihajlo B. and Grujić, Snežana and Živanović, Vladimir D. and Nikolić, J. D. and Matijašević, Srđan D.",
year = "2010",
abstract = "The nucleation of germanate K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions was studied by the DTA method. The temperature ranges of nucleation and crystal growth of this glass partly overlap. The influence of the mass of the glass sample as well as, the time and temperature of the pre-DTA heat treatment on the DTA parameters T-p, (delta T)(p), and Delta T-p was investigated. A complex behavior of these parameters was evidenced. It was shown that for fixed temperatures, increasing the annealing time of the pre-DTA heat treatment resulted in a decrease in the temperature of the DTA peak (T-p). The curve of the dependence of DTA peak heights (delta T)(p) on time showed a maximum and the parameter Delta T-p continually increased with increasing time. The influence of the temperature of the pre-DTA heat treatment on the DTA parameters showed that for annealing times t gt t(ind), the dependences of T-p(-1) and Delta T-p vs. T corresponded to the dependence of Ion Tin the case when the regions of I and U partly overlapped. As shown, in this case. the change of (delta T)(p) vs. T is not convenient for an analysis of the nucleation behavior of the glass.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Non-Crystalline Solids",
title = "The nucleation of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions",
pages = "1391-1385",
number = "28-30",
volume = "356",
doi = "10.1016/j.jnoncrysol.2010.05.047"
}

Tošić, M. B., Grujić, S., Živanović, V. D., Nikolić, J. D.,& Matijašević, S. D.. (2010). The nucleation of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions. in Journal of Non-Crystalline Solids
Elsevier, Amsterdam., 356(28-30), 1385-1391.
https://doi.org/10.1016/j.jnoncrysol.2010.05.047

Tošić MB, Grujić S, Živanović VD, Nikolić JD, Matijašević SD. The nucleation of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions. in Journal of Non-Crystalline Solids. 2010;356(28-30):1385-1391.
doi:10.1016/j.jnoncrysol.2010.05.047 .

Tošić, Mihajlo B., Grujić, Snežana, Živanović, Vladimir D., Nikolić, J. D., Matijašević, Srđan D., "The nucleation of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal conditions" in Journal of Non-Crystalline Solids, 356, no. 28-30 (2010):1385-1391,
https://doi.org/10.1016/j.jnoncrysol.2010.05.047 . .