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  - 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  - 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  - 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  - 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  - 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 .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana R.
AU  - Tosić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Topalović, Vladimir
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/396
AB  - The selected lanthanum-strontium borate glasses were prepared by a conventional melt-quenching technique. The compositions of the investigated glasses were chosen to be: 5.7, 9.5, 14.3, 19.1 mol% for La2O3, 22.9, 19.1, 14.3, 9.5 mol% for SrO and 71.4 mol% for B2O3. The density, molar volume, oxygen molar volume, oxygen packing density, oxygen/boron ratios and structural transformations in the glass network were investigated according to the substitution of SrO by La2O3. The density and the molar volume increased in parallel with La2O3 content increase. Simultaneously, oxygen molar volume values increased while the oxygen packing density values decreased. A hot stage microscope (HSM) and a differential thermal analysis (DTA) were used to determine the characteristic temperatures. By increasing the content of lanthanum, the glass transition temperatures, changed with the same trend as the molar volume. Glass stability parameters were calculated from the temperatures obtained by DTA and HSM. The HSM results were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tamman (VFT) equation.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Effect of la2o3 on the structure and the properties of strontium borate glasses
EP  - 115
IS  - 1
SP  - 111
VL  - 22
DO  - 10.2298/CICEQ150213031S
UR  - conv_758
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana R. and Tosić, Mihajlo B. and Živanović, Vladimir D. and Matijašević, Srđan and Nikolić, Jelena and Topalović, Vladimir",
year = "2016",
abstract = "The selected lanthanum-strontium borate glasses were prepared by a conventional melt-quenching technique. The compositions of the investigated glasses were chosen to be: 5.7, 9.5, 14.3, 19.1 mol% for La2O3, 22.9, 19.1, 14.3, 9.5 mol% for SrO and 71.4 mol% for B2O3. The density, molar volume, oxygen molar volume, oxygen packing density, oxygen/boron ratios and structural transformations in the glass network were investigated according to the substitution of SrO by La2O3. The density and the molar volume increased in parallel with La2O3 content increase. Simultaneously, oxygen molar volume values increased while the oxygen packing density values decreased. A hot stage microscope (HSM) and a differential thermal analysis (DTA) were used to determine the characteristic temperatures. By increasing the content of lanthanum, the glass transition temperatures, changed with the same trend as the molar volume. Glass stability parameters were calculated from the temperatures obtained by DTA and HSM. The HSM results were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tamman (VFT) equation.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Effect of la2o3 on the structure and the properties of strontium borate glasses",
pages = "115-111",
number = "1",
volume = "22",
doi = "10.2298/CICEQ150213031S",
url = "conv_758"
}

Smiljanić, S., Grujić, S. R., Tosić, M. B., Živanović, V. D., Matijašević, S., Nikolić, J.,& Topalović, V.. (2016). Effect of la2o3 on the structure and the properties of strontium borate glasses. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 22(1), 111-115.
https://doi.org/10.2298/CICEQ150213031S
conv_758

Smiljanić S, Grujić SR, Tosić MB, Živanović VD, Matijašević S, Nikolić J, Topalović V. Effect of la2o3 on the structure and the properties of strontium borate glasses. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2016;22(1):111-115.
doi:10.2298/CICEQ150213031S
conv_758 .

Smiljanić, Sonja, Grujić, Snežana R., Tosić, Mihajlo B., Živanović, Vladimir D., Matijašević, Srđan, Nikolić, Jelena, Topalović, Vladimir, "Effect of la2o3 on the structure and the properties of strontium borate glasses" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 22, no. 1 (2016):111-115,
https://doi.org/10.2298/CICEQ150213031S .,
conv_758 .

TY  - JOUR
AU  - Smiljanić, Sonja
AU  - Grujić, Snežana R.
AU  - Tosić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/295
AB  - Glasses with a constant B2O3 and an increasing La2O3 content in the system La2O3-SrO-B2O3 were obtained by the usual melt quenching procedure. The crystallization and sinterability of the glasses were investigated by hot stage microscopy (HSM), differential thermal analysis (DTA), X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). XRD analysis of the bulk samples evidenced the formation of the crystalline phases: La2SrB10O19, SrB6O10 and SrLaBO4. XRD and TEM/SAED analyses showed a polymorphic crystallization of the glass sample containing 14.3 mol% La2O3 with precipitation of the La2SrB10O19 phase. SEM analysis confirmed the surface crystallization mechanism of this sample. The kinetics of crystallization of the same sample was examined by DTA and the activation energy of crystal growth was calculated by the Kissinger model to be E-a=458 +/- 63 kJ mol(-1).
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3
EP  - 305
IS  - 1
SP  - 297
VL  - 40
DO  - 10.1016/j.ceramint.2013.06.002
UR  - conv_678
ER  - 

@article{
author = "Smiljanić, Sonja and Grujić, Snežana R. and Tosić, Mihajlo B. and Živanović, Vladimir D. and Stojanović, Jovica and Matijašević, Srđan and Nikolić, Jelena",
year = "2014",
abstract = "Glasses with a constant B2O3 and an increasing La2O3 content in the system La2O3-SrO-B2O3 were obtained by the usual melt quenching procedure. The crystallization and sinterability of the glasses were investigated by hot stage microscopy (HSM), differential thermal analysis (DTA), X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). XRD analysis of the bulk samples evidenced the formation of the crystalline phases: La2SrB10O19, SrB6O10 and SrLaBO4. XRD and TEM/SAED analyses showed a polymorphic crystallization of the glass sample containing 14.3 mol% La2O3 with precipitation of the La2SrB10O19 phase. SEM analysis confirmed the surface crystallization mechanism of this sample. The kinetics of crystallization of the same sample was examined by DTA and the activation energy of crystal growth was calculated by the Kissinger model to be E-a=458 +/- 63 kJ mol(-1).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3",
pages = "305-297",
number = "1",
volume = "40",
doi = "10.1016/j.ceramint.2013.06.002",
url = "conv_678"
}

Smiljanić, S., Grujić, S. R., Tosić, M. B., Živanović, V. D., Stojanović, J., Matijašević, S.,& Nikolić, J.. (2014). Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(1), 297-305.
https://doi.org/10.1016/j.ceramint.2013.06.002
conv_678

Smiljanić S, Grujić SR, Tosić MB, Živanović VD, Stojanović J, Matijašević S, Nikolić J. Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3. in Ceramics International. 2014;40(1):297-305.
doi:10.1016/j.ceramint.2013.06.002
conv_678 .

Smiljanić, Sonja, Grujić, Snežana R., Tosić, Mihajlo B., Živanović, Vladimir D., Stojanović, Jovica, Matijašević, Srđan, Nikolić, Jelena, "Crystallization and sinterability of glass-ceramics in the system La2O3-SrO-B2O3" in Ceramics International, 40, no. 1 (2014):297-305,
https://doi.org/10.1016/j.ceramint.2013.06.002 .,
conv_678 .

TY  - JOUR
AU  - Nikolić, Jelena
AU  - Smiljanić, Sonja
AU  - Matijašević, Srđan
AU  - Živanović, Vladimir D.
AU  - Tošič, Mihajlo B.
AU  - Grujić, Snežana R.
AU  - Stojanović, Jovica
PY  - 2013
UR  - https://ritnms.itnms.ac.rs/handle/123456789/266
AB  - The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal crystallization conditions. DTA, XRD and SEM methods were employed for analyses. It was confirmed that this glass crystallizes by the volume crystallization mechanism. The results also showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed and the traces of GeO2 as a secondary one is present. The crystallization process occurred at a high homogeneous nucleation rate and the spherical morphology of crystal growth. By applying the Kissinger relation the activation energy of crystal growth Ea = 462 kJ/mol was determined.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system
EP  - 151
IS  - 4
SP  - 147
VL  - 7
DO  - 10.2298/PAC1304147N
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2333
UR  - conv_474
ER  - 

@article{
author = "Nikolić, Jelena and Smiljanić, Sonja and Matijašević, Srđan and Živanović, Vladimir D. and Tošič, Mihajlo B. and Grujić, Snežana R. and Stojanović, Jovica",
year = "2013",
abstract = "The results of preparation and structural characterization of glass-ceramics from the system Li2O-Al2O3-GeO2-P2O5 are shown in this paper. The crystallization behaviour of the selected glass was examined under non-isothermal and isothermal crystallization conditions. DTA, XRD and SEM methods were employed for analyses. It was confirmed that this glass crystallizes by the volume crystallization mechanism. The results also showed that the glass crystallize by primary crystallization. As a primary phase the LiGe2(PO4)3 is formed and the traces of GeO2 as a secondary one is present. The crystallization process occurred at a high homogeneous nucleation rate and the spherical morphology of crystal growth. By applying the Kissinger relation the activation energy of crystal growth Ea = 462 kJ/mol was determined.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system",
pages = "151-147",
number = "4",
volume = "7",
doi = "10.2298/PAC1304147N",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2333, conv_474"
}

Nikolić, J., Smiljanić, S., Matijašević, S., Živanović, V. D., Tošič, M. B., Grujić, S. R.,& Stojanović, J.. (2013). Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 7(4), 147-151.
https://doi.org/10.2298/PAC1304147N
https://hdl.handle.net/21.15107/rcub_technorep_2333

Nikolić J, Smiljanić S, Matijašević S, Živanović VD, Tošič MB, Grujić SR, Stojanović J. Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system. in Processing and Application of Ceramics. 2013;7(4):147-151.
doi:10.2298/PAC1304147N
https://hdl.handle.net/21.15107/rcub_technorep_2333 .

Nikolić, Jelena, Smiljanić, Sonja, Matijašević, Srđan, Živanović, Vladimir D., Tošič, Mihajlo B., Grujić, Snežana R., Stojanović, Jovica, "Preparation of glass-ceramic in Li2O-Al2O3-GeO2-P2O5 system" in Processing and Application of Ceramics, 7, no. 4 (2013):147-151,
https://doi.org/10.2298/PAC1304147N .,
https://hdl.handle.net/21.15107/rcub_technorep_2333 .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Tosić, Mihajlo B.
AU  - Stojanović, Jovica
AU  - Grujić, Snežana R.
AU  - Živanović, Vladimir D.
AU  - Nikolić, Jelena
AU  - Đošić, Marija
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/244
AB  - Potassium germanate glass with molar ratio [GeO2]/[K2O] = 1.2 and Nb2O5 content of 34 mol% have been synthesized by a melt-quenching method. The crystallization behavior under non-isothermal and isothermal crystallization conditions was investigated. The results showed that this glass exposed complex primary crystallization. In the temperature range  LT  800 degrees C primary phase is K3.8Nb5Ge3O20.4, while K6Nb6Ge4O26 appeared as primary phase at temperatures > 800 degrees C. K10Nb22Ge4O68 and metastable KNbO3 and K4Nb6O17 were formed as secondary phases. The crystallization commenced at T > 640 degrees C with high homogeneous nucleation rate and spherulite crystal growth morphology. DTA curves recorded for powder samples particle size  LT  0.1 mm revealed three exothermic peaks and three endothermic peaks within temperature range of T = 640-940 degrees C, while the DTA curves recorded for powder samples particle size > 0.1 mm showed two exothermic peaks and two endothermic peaks within temperature range of T = 640-1020 degrees C. The analysis of the dominant crystallization mechanism of powder glass sample and kinetics of crystallization is presented.
PB  - University of Chemistry and Technology, Prague
T2  - Ceramics - Silikaty
T1  - The crystallization of potassium germanate glass with high content of niobium oxide
EP  - 68
IS  - 1
SP  - 61
VL  - 56
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1981
UR  - conv_1066
ER  - 

@article{
author = "Matijašević, Srđan and Tosić, Mihajlo B. and Stojanović, Jovica and Grujić, Snežana R. and Živanović, Vladimir D. and Nikolić, Jelena and Đošić, Marija",
year = "2012",
abstract = "Potassium germanate glass with molar ratio [GeO2]/[K2O] = 1.2 and Nb2O5 content of 34 mol% have been synthesized by a melt-quenching method. The crystallization behavior under non-isothermal and isothermal crystallization conditions was investigated. The results showed that this glass exposed complex primary crystallization. In the temperature range  LT  800 degrees C primary phase is K3.8Nb5Ge3O20.4, while K6Nb6Ge4O26 appeared as primary phase at temperatures > 800 degrees C. K10Nb22Ge4O68 and metastable KNbO3 and K4Nb6O17 were formed as secondary phases. The crystallization commenced at T > 640 degrees C with high homogeneous nucleation rate and spherulite crystal growth morphology. DTA curves recorded for powder samples particle size  LT  0.1 mm revealed three exothermic peaks and three endothermic peaks within temperature range of T = 640-940 degrees C, while the DTA curves recorded for powder samples particle size > 0.1 mm showed two exothermic peaks and two endothermic peaks within temperature range of T = 640-1020 degrees C. The analysis of the dominant crystallization mechanism of powder glass sample and kinetics of crystallization is presented.",
publisher = "University of Chemistry and Technology, Prague",
journal = "Ceramics - Silikaty",
title = "The crystallization of potassium germanate glass with high content of niobium oxide",
pages = "68-61",
number = "1",
volume = "56",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1981, conv_1066"
}

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

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

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