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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - 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  - 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 .