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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
AU  - Smiljanić, Sonja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/795
AB  - Coal fly ash represents huge ecological problem and its reutilization should be considered. Vitrification of coal fly ash could be one of the solutions. The glass was obtained by melting a mixture of coal fly ash, glass cullet and CaCO3 at T = 1500 oC and quenching the melt in air. The chemical durability of the glass was determined by dissolution test in distilled water, HCl and NaOH at T = 95 0C for t = 2 h. It was shown that dissolution rate of glass in distillated water and NaOH is negligible, while in HCl solution was shown significant mass loss.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIV International Mineral Processing and Recycling Conference-IMPRC 2021
T1  - Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate
EP  - 362
SP  - 357
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Zildžović, Snežana and Grujić, Snežana and Smiljanić, Sonja",
year = "2021",
abstract = "Coal fly ash represents huge ecological problem and its reutilization should be considered. Vitrification of coal fly ash could be one of the solutions. The glass was obtained by melting a mixture of coal fly ash, glass cullet and CaCO3 at T = 1500 oC and quenching the melt in air. The chemical durability of the glass was determined by dissolution test in distilled water, HCl and NaOH at T = 95 0C for t = 2 h. It was shown that dissolution rate of glass in distillated water and NaOH is negligible, while in HCl solution was shown significant mass loss.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIV International Mineral Processing and Recycling Conference-IMPRC 2021",
title = "Dissolution of glass made from coal fly ash, glass cullet and calcium carbonate",
pages = "362-357"
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/804
AB  - The increasing production of coal fly ash waste from thermal power plants has compounded environmental and economical problems worldwide. Considerable research has been undertaken because of the environmental problems presented by the fly ash. The goal is to produce usable material from waste. The aim of this papier is to produce glass from fly ash and limestone that will have high resistance to dissolution and leaching. Obtained glass could have wide application in industry. Coal fly ash was mixed with 37% limestone and melted in electric furnace at T=1500 °C during t=1 h. The obtained glass sample was black, without visible residual gas bubbles. X-ray powder diffraction (XRD)analysis confirmed the quenched melt to be amorphous. To determine the chemical durability, glass sample was crushed and then sieved to grain size 0.3-0.5 mm. The corrosion test was performed in a distilled water, HCl and NaOH solution (0.01 M9 at T=95 °C for t=2h using 2 g of samples and 70 ml of solution. The results of corrosion test revealed a high durability of the glass sample. Potential application of this material would include use as: building blocks, anticorrosive container lining, matrix material in which radioactive wastes and heavy metals could be successfully solidified into the glass structure.
PB  - Belgrade : Serbian Ceramic Society
C3  - ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing
T1  - Corrosion of coal fly ash glass
EP  - 59
SP  - 59
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Zildžović, Snežana and Smiljanić, Sonja and Grujić, Snežana",
year = "2019",
abstract = "The increasing production of coal fly ash waste from thermal power plants has compounded environmental and economical problems worldwide. Considerable research has been undertaken because of the environmental problems presented by the fly ash. The goal is to produce usable material from waste. The aim of this papier is to produce glass from fly ash and limestone that will have high resistance to dissolution and leaching. Obtained glass could have wide application in industry. Coal fly ash was mixed with 37% limestone and melted in electric furnace at T=1500 °C during t=1 h. The obtained glass sample was black, without visible residual gas bubbles. X-ray powder diffraction (XRD)analysis confirmed the quenched melt to be amorphous. To determine the chemical durability, glass sample was crushed and then sieved to grain size 0.3-0.5 mm. The corrosion test was performed in a distilled water, HCl and NaOH solution (0.01 M9 at T=95 °C for t=2h using 2 g of samples and 70 ml of solution. The results of corrosion test revealed a high durability of the glass sample. Potential application of this material would include use as: building blocks, anticorrosive container lining, matrix material in which radioactive wastes and heavy metals could be successfully solidified into the glass structure.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing",
title = "Corrosion of coal fly ash glass",
pages = "59-59"
}

Savić, V., Topalović, V., Matijašević, S., Nikolić, J., Zildžović, S., Smiljanić, S.,& Grujić, S.. (2019). Corrosion of coal fly ash glass. in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing
Belgrade : Serbian Ceramic Society., 59-59.

Savić V, Topalović V, Matijašević S, Nikolić J, Zildžović S, Smiljanić S, Grujić S. Corrosion of coal fly ash glass. in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing. 2019;:59-59..

Savić, Veljko, Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Zildžović, Snežana, Smiljanić, Sonja, Grujić, Snežana, "Corrosion of coal fly ash glass" in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing (2019):59-59.

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Savić, Veljko
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/803
AB  - Due to their potential bioactive properties, different types of phosphate based glasses have been considered for bone tissue engineering and drug delivery applications. In this experiment, four different compositions of glasses (42P2O5·40CaO·5SrO·10Na2O·3TiO2 , 46P2O5·40CaO·SrO·10Na2O·3TiO2 , 42P2O5·40CaO·5La2O3·10Na2O·3TiO2 , and 46P2O5·40CaO·La2O3·10Na2O·3TiO2 (mol%)) were obtained by standard melt-quenching method. The crystallization and sintering behavior of glasses have been studied by using DTA, HSM and XRD methods. For all of the glass compositions the sintered phosphate glass-ceramic samples contained certain bioactive phases (α-Ca3(PO4)2, β-Ca3(PO4)2, β-Ca2P2O7,β-CaP2O6). Based on the glass properties, the use of these glasses in obtaining the bioactive glass scaffolds with a suitable interconnected porous structure is achievable. Bioactive scaffolds have potential to aid the bone regeneration process by giving cell a temporary template to grow into, provoking bone cell activity. Also, glasses with stable uniform porous structure and high surface area can be used as porous carriers for controlled drug delivery.
PB  - Belgrade : Serbian Ceramic Society
C3  - ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing
T1  - Characterization of different bioactive phosphate glasses
EP  - 60
SP  - 60
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Đošić, Marija and Savić, Veljko and Smiljanić, Sonja and Grujić, Snežana",
year = "2019",
abstract = "Due to their potential bioactive properties, different types of phosphate based glasses have been considered for bone tissue engineering and drug delivery applications. In this experiment, four different compositions of glasses (42P2O5·40CaO·5SrO·10Na2O·3TiO2 , 46P2O5·40CaO·SrO·10Na2O·3TiO2 , 42P2O5·40CaO·5La2O3·10Na2O·3TiO2 , and 46P2O5·40CaO·La2O3·10Na2O·3TiO2 (mol%)) were obtained by standard melt-quenching method. The crystallization and sintering behavior of glasses have been studied by using DTA, HSM and XRD methods. For all of the glass compositions the sintered phosphate glass-ceramic samples contained certain bioactive phases (α-Ca3(PO4)2, β-Ca3(PO4)2, β-Ca2P2O7,β-CaP2O6). Based on the glass properties, the use of these glasses in obtaining the bioactive glass scaffolds with a suitable interconnected porous structure is achievable. Bioactive scaffolds have potential to aid the bone regeneration process by giving cell a temporary template to grow into, provoking bone cell activity. Also, glasses with stable uniform porous structure and high surface area can be used as porous carriers for controlled drug delivery.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing",
title = "Characterization of different bioactive phosphate glasses",
pages = "60-60"
}

Topalović, V., Matijašević, S., Nikolić, J., Đošić, M., Savić, V., Smiljanić, S.,& Grujić, S.. (2019). Characterization of different bioactive phosphate glasses. in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing
Belgrade : Serbian Ceramic Society., 60-60.

Topalović V, Matijašević S, Nikolić J, Đošić M, Savić V, Smiljanić S, Grujić S. Characterization of different bioactive phosphate glasses. in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing. 2019;:60-60..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Đošić, Marija, Savić, Veljko, Smiljanić, Sonja, Grujić, Snežana, "Characterization of different bioactive phosphate glasses" in ADVANCED CERAMICS AND APPLICATION VIII New Frontiers in Multifunctional Material Science and Processing (2019):60-60.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Karamanova, Emilia
AU  - Grujić, Snežana
AU  - Rogan, Jelena
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan
AU  - Karamanov, Alexander
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/474
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
UR  - conv_816
ER  - 

@article{
author = "Smiljanić, Sonja and Karamanova, Emilia and Grujić, Snežana and Rogan, Jelena and Stojanović, Jovica and Matijašević, Srđan 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",
url = "conv_816"
}

Smiljanić, S., Karamanova, E., Grujić, S., Rogan, J., Stojanović, J., Matijašević, S.,& 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
conv_816

Smiljanić S, Karamanova E, Grujić S, Rogan J, Stojanović J, Matijašević S, 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
conv_816 .

Smiljanić, Sonja, Karamanova, Emilia, Grujić, Snežana, Rogan, Jelena, Stojanović, Jovica, Matijašević, Srđan, 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 .,
conv_816 .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Grujić, Snežana R.
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Smiljanić, Sonja
AU  - Labus, Nebojša
AU  - Savić, Veljko
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/472
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
UR  - conv_837
ER  - 

@article{
author = "Matijašević, Srđan and Grujić, Snežana R. and Topalović, Vladimir and Nikolić, Jelena 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",
url = "conv_837"
}

Matijašević, S., Grujić, S. R., Topalović, V., Nikolić, J., 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
conv_837

Matijašević S, Grujić SR, Topalović V, Nikolić J, 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
conv_837 .

Matijašević, Srđan, Grujić, Snežana R., Topalović, Vladimir, Nikolić, Jelena, 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 .,
conv_837 .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - JOUR
AU  - Nikolić, Jelena
AU  - Tosić, Mihajlo B.
AU  - Grujić, Snežana R.
AU  - Živanović, Vladimir D.
AU  - Đošić, Marija
AU  - Matijašević, Srđan
AU  - Smiljanić, Sonja
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/448
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
UR  - conv_792
ER  - 

@article{
author = "Nikolić, Jelena and Tosić, Mihajlo B. and Grujić, Snežana R. and Živanović, Vladimir D. and Đošić, Marija and Matijašević, Srđan 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",
url = "conv_792"
}

Nikolić, J., Tosić, M. B., Grujić, S. R., Živanović, V. D., Đošić, M., Matijašević, S.,& 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
conv_792

Nikolić J, Tosić MB, Grujić SR, Živanović VD, Đošić M, Matijašević S, 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
conv_792 .

Nikolić, Jelena, Tosić, Mihajlo B., Grujić, Snežana R., Živanović, Vladimir D., Đošić, Marija, Matijašević, Srđan, 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 .,
conv_792 .

TY  - JOUR
AU  - Topalović, Vladimir
AU  - Grujić, Snežana R.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Stojanović, Jovica
AU  - Smiljanić, Sonja
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/437
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
UR  - conv_803
ER  - 

@article{
author = "Topalović, Vladimir and Grujić, Snežana R. and Živanović, Vladimir D. and Matijašević, Srđan and Nikolić, Jelena 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",
url = "conv_803"
}

Topalović, V., Grujić, S. R., Živanović, V. D., Matijašević, S., Nikolić, J., 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
conv_803

Topalović V, Grujić SR, Živanović VD, Matijašević S, Nikolić J, 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
conv_803 .

Topalović, Vladimir, Grujić, Snežana R., Živanović, Vladimir D., Matijašević, Srđan, Nikolić, Jelena, 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 .,
conv_803 .

TY  - CONF
AU  - Savić, Veljko
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
AU  - Topalović, Vladimir
AU  - Smiljanić, Sonja
AU  - Nikolić, Jelena
AU  - Zildžović, Snežana
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/789
AB  - Lithium based solid electrolytes are mainly useful for utilization in high energy density batteries, supercapacitors, sensors, displays and electrochemical devices. They generally crystallize in rhombohedral R3-c(167) space group related to open structures and the monovalent Li+ cation can easily migrate in lattice with low activation energy. These materials are usually obtained by powder sintering route and the crystallization of these glasses. The studies of crystallization of Li2O–Al2O3–GeO2–P2O5 glasses showed that one of dominant crystal phase precipitated in glass matrix is NASICON - type LiGe2(PO4)3 crystals. It was detected that this glass crystallizes by the volume crystallization mechanism. The enthalpy of crystallization ΔHcryst= -48.36 kJmol-1 was determined. The density of the crystalline phase was ρ=3.52 gcm-3 and molar volume Vm = 121.09 ·10-6 m3. The ionic conductivity of the test phase which be-longs to the solid solutions is about 6.2· 10−6 Scm-1 at room temperature.
It may be considered that the structure of this glass consists of GeO6 octahedra and PO4 tetrahedra. The basic unit of this glass consists of two GeO6 octahedra and PO4 tetrahedra corresponding to [Ge2(PO4)]. Each GeO6 octahedron is connected to three PO4 tetrahedra, each of which is linked to four GeO6 octahedra.
These units in turn are connected to form `ribbons` along the c-axis and the ribbons are joined together along the a-and b-axis by PO4 tetrahedra. This structure results in cavities where lithium ions reside and in bottlenecks in which they pass through.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017
T1  - Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5
EP  - 46
SP  - 46
ER  - 

@conference{
author = "Savić, Veljko and Matijašević, Srđan and Grujić, Snežana and Topalović, Vladimir and Smiljanić, Sonja and Nikolić, Jelena and Zildžović, Snežana",
year = "2017",
abstract = "Lithium based solid electrolytes are mainly useful for utilization in high energy density batteries, supercapacitors, sensors, displays and electrochemical devices. They generally crystallize in rhombohedral R3-c(167) space group related to open structures and the monovalent Li+ cation can easily migrate in lattice with low activation energy. These materials are usually obtained by powder sintering route and the crystallization of these glasses. The studies of crystallization of Li2O–Al2O3–GeO2–P2O5 glasses showed that one of dominant crystal phase precipitated in glass matrix is NASICON - type LiGe2(PO4)3 crystals. It was detected that this glass crystallizes by the volume crystallization mechanism. The enthalpy of crystallization ΔHcryst= -48.36 kJmol-1 was determined. The density of the crystalline phase was ρ=3.52 gcm-3 and molar volume Vm = 121.09 ·10-6 m3. The ionic conductivity of the test phase which be-longs to the solid solutions is about 6.2· 10−6 Scm-1 at room temperature.
It may be considered that the structure of this glass consists of GeO6 octahedra and PO4 tetrahedra. The basic unit of this glass consists of two GeO6 octahedra and PO4 tetrahedra corresponding to [Ge2(PO4)]. Each GeO6 octahedron is connected to three PO4 tetrahedra, each of which is linked to four GeO6 octahedra.
These units in turn are connected to form `ribbons` along the c-axis and the ribbons are joined together along the a-and b-axis by PO4 tetrahedra. This structure results in cavities where lithium ions reside and in bottlenecks in which they pass through.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017",
title = "Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5",
pages = "46-46"
}

Savić, V., Matijašević, S., Grujić, S., Topalović, V., Smiljanić, S., Nikolić, J.,& Zildžović, S.. (2017). Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5. in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017
Belgrade : Association of Metallurgical Engineers of Serbia., 46-46.

Savić V, Matijašević S, Grujić S, Topalović V, Smiljanić S, Nikolić J, Zildžović S. Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5. in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017. 2017;:46-46..

Savić, Veljko, Matijašević, Srđan, Grujić, Snežana, Topalović, Vladimir, Smiljanić, Sonja, Nikolić, Jelena, Zildžović, Snežana, "Ion conductive glass-ceramics in the system Li2O·Al2O3·GeO2·P2O5" in Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2017 (2017):46-46.

TY  - JOUR
AU  - Nikolić, Jelena
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan
AU  - Stojanović, Jovica
AU  - Grujić, Snežana R.
AU  - Smiljanić, Sonja
AU  - Topalović, Vladimir
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/415
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 (c) = 500 A degrees C commences to crystallize after 12 h, and KPO3 and Ca2KP3O10 crystalline phases appeared. The dendritic morphology of the crystals growing on sample surface was determined. The DTA and HSM results showed that the sintering and crystallization processes are independent. Phosphate glass-ceramics containing KPO3, K2Mg(PO3)(4), Ca(PO3)(2) and KCa(PO3)(3) crystalline phases has been prepared by sintering of the glass powder compacts at T (c) = 500 A degrees C for t = 12 h. A plate-like morphology of crystals which grow on glass grains surface was observed. The activation energies of crystal growth, E (a,k) = (246.6 +/- A 19.74) kJ mol(-1) (Kissinger) and E (a,oz) = (258.80 +/- A 19.70) kJ mol(-1) (Ozawa), were calculated.
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
UR  - conv_756
ER  - 

@article{
author = "Nikolić, Jelena and Živanović, Vladimir D. and Matijašević, Srđan and Stojanović, Jovica and Grujić, Snežana R. and Smiljanić, Sonja and Topalović, Vladimir",
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 (c) = 500 A degrees C commences to crystallize after 12 h, and KPO3 and Ca2KP3O10 crystalline phases appeared. The dendritic morphology of the crystals growing on sample surface was determined. The DTA and HSM results showed that the sintering and crystallization processes are independent. Phosphate glass-ceramics containing KPO3, K2Mg(PO3)(4), Ca(PO3)(2) and KCa(PO3)(3) crystalline phases has been prepared by sintering of the glass powder compacts at T (c) = 500 A degrees C for t = 12 h. A plate-like morphology of crystals which grow on glass grains surface was observed. The activation energies of crystal growth, E (a,k) = (246.6 +/- A 19.74) kJ mol(-1) (Kissinger) and E (a,oz) = (258.80 +/- A 19.70) kJ mol(-1) (Ozawa), were calculated.",
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",
url = "conv_756"
}

Nikolić, J., Živanović, V. D., Matijašević, S., Stojanović, J., Grujić, S. R., Smiljanić, S.,& Topalović, V.. (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
conv_756

Nikolić J, Živanović VD, Matijašević S, Stojanović J, Grujić SR, Smiljanić S, Topalović V. 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
conv_756 .

Nikolić, Jelena, Živanović, Vladimir D., Matijašević, Srđan, Stojanović, Jovica, Grujić, Snežana R., Smiljanić, Sonja, Topalović, Vladimir, "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 .,
conv_756 .