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  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Matijašević, Srđan
AU  - Đošić, Marija
AU  - Grujić, Snežana
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/781
AB  - The increasing production of fly ashes from carbon combustion in thermal power plants has compounded environmental problems worldwide. As one of promising solution the vitrification of fly ashes could be considered. For potential application chemical durability of material should be known. Dissolution of coal fly ash glass grain samples was studied. The glass was obtained by melting a mixture of coal fly ash, Na2CO3 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 = 950C for t =2h. 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  - 51th International October Conference on Mining and Metallurgy-IOC 2019
T1  - Dissolution of coal fly ash glass in different media
EP  - 96
SP  - 93
ER  - 

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Matijašević, Srđan and Đošić, Marija and Grujić, Snežana",
year = "2019",
abstract = "The increasing production of fly ashes from carbon combustion in thermal power plants has compounded environmental problems worldwide. As one of promising solution the vitrification of fly ashes could be considered. For potential application chemical durability of material should be known. Dissolution of coal fly ash glass grain samples was studied. The glass was obtained by melting a mixture of coal fly ash, Na2CO3 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 = 950C for t =2h. 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 = "51th International October Conference on Mining and Metallurgy-IOC 2019",
title = "Dissolution of coal fly ash glass in different media",
pages = "96-93"
}

Savić, V., Topalović, V., Nikolić, J., Matijašević, S., Đošić, M.,& Grujić, S.. (2019). Dissolution of coal fly ash glass in different media. in 51th International October Conference on Mining and Metallurgy-IOC 2019
Bor : University of Belgrade, Technical Faculty in Bor., 93-96.

Savić V, Topalović V, Nikolić J, Matijašević S, Đošić M, Grujić S. Dissolution of coal fly ash glass in different media. in 51th International October Conference on Mining and Metallurgy-IOC 2019. 2019;:93-96..

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Matijašević, Srđan, Đošić, Marija, Grujić, Snežana, "Dissolution of coal fly ash glass in different media" in 51th International October Conference on Mining and Metallurgy-IOC 2019 (2019):93-96.

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 .

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  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Stojanović, Jovica
AU  - Đošić, Marija
AU  - Nikolić, Jelena
AU  - Stojanović, Mirjana
AU  - Labus, Nebojša
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/381
AB  - Cilj ovog rada je prikaz mogućnosti primene prirodnog i modifikovanog zeolitskog minerala kao adsorbenta i materijala za sanaciju voda kontaminiranih uranijum jonom. Modifikovani uzorci zeolita dobijeni su tretiranjem prirodnog zeolita - klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani zeoliti su okarakterisani hemijskom analizom, skenirajućom elektronskom mikroskopijom (SEM), rendgenskom analizom (XRPD), IC spektroskopijom, termičkom (TG/DTA) analizom i određivanjem kapaciteta katjonske izmene, a polazne i neadsorbovane količine uranijum jona su određene fluorimetrijski. Eksperimenti su sprovedeni da se ispita uticaj odnosa čvrsto/tečno, pH i vremena na adsorpciju uranijum jona na zeolitu. Utvrđeno je da tretman sa kiselinama zeolita povećava adsorpciju uranijum jona. Najviši indeks adsorpcije imao je uzorak zeolita modifikovan sa hlorovodoničnom kiselinom. Dobijeni rezultati adsorpcije na H-zeolitu su izračunati prema Langmirovom modelu.
AB  - The objective of this study was the review of natural zeolite, modified with acid, as a candidate material for the remediation of groundwater contaminated by uranium(VI). The modified zeolite samples were obtained by treatment of natural zeolite - clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified zeolites were characterized by chemical analysis, SEM, XRPD analysis, IR spectroscopy, thermal (TG/DT) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranium(VI) ion were determined by fluorometric method. Batch experiments were conducted to investigate the effect of solid/liquid ratio, pH and time on the U(VI) uptake by zeolite. Modification of zeolitic tuff with acids significantly increased adsorption of uranium(VI). The highest adsorption of uranium(VI) ion was achieved on clinoptilolite modified with hydrochloric acid. Uranium(VI) adsorption data for zeolite modified with hydrochloric acid was fitted to the Langmuir model.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima
T1  - Removal of uranium (VI) from aqueous solution by acid modified zeolites
EP  - 558
IS  - 4
SP  - 551
VL  - 57
DO  - 10.5937/ZasMat1604551M
UR  - conv_148
ER  - 

@article{
author = "Matijašević, Srđan and Zildžović, Snežana and Stojanović, Jovica and Đošić, Marija and Nikolić, Jelena and Stojanović, Mirjana and Labus, Nebojša",
year = "2016",
abstract = "Cilj ovog rada je prikaz mogućnosti primene prirodnog i modifikovanog zeolitskog minerala kao adsorbenta i materijala za sanaciju voda kontaminiranih uranijum jonom. Modifikovani uzorci zeolita dobijeni su tretiranjem prirodnog zeolita - klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani zeoliti su okarakterisani hemijskom analizom, skenirajućom elektronskom mikroskopijom (SEM), rendgenskom analizom (XRPD), IC spektroskopijom, termičkom (TG/DTA) analizom i određivanjem kapaciteta katjonske izmene, a polazne i neadsorbovane količine uranijum jona su određene fluorimetrijski. Eksperimenti su sprovedeni da se ispita uticaj odnosa čvrsto/tečno, pH i vremena na adsorpciju uranijum jona na zeolitu. Utvrđeno je da tretman sa kiselinama zeolita povećava adsorpciju uranijum jona. Najviši indeks adsorpcije imao je uzorak zeolita modifikovan sa hlorovodoničnom kiselinom. Dobijeni rezultati adsorpcije na H-zeolitu su izračunati prema Langmirovom modelu., The objective of this study was the review of natural zeolite, modified with acid, as a candidate material for the remediation of groundwater contaminated by uranium(VI). The modified zeolite samples were obtained by treatment of natural zeolite - clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified zeolites were characterized by chemical analysis, SEM, XRPD analysis, IR spectroscopy, thermal (TG/DT) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranium(VI) ion were determined by fluorometric method. Batch experiments were conducted to investigate the effect of solid/liquid ratio, pH and time on the U(VI) uptake by zeolite. Modification of zeolitic tuff with acids significantly increased adsorption of uranium(VI). The highest adsorption of uranium(VI) ion was achieved on clinoptilolite modified with hydrochloric acid. Uranium(VI) adsorption data for zeolite modified with hydrochloric acid was fitted to the Langmuir model.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima, Removal of uranium (VI) from aqueous solution by acid modified zeolites",
pages = "558-551",
number = "4",
volume = "57",
doi = "10.5937/ZasMat1604551M",
url = "conv_148"
}

Matijašević, S., Zildžović, S., Stojanović, J., Đošić, M., Nikolić, J., Stojanović, M.,& Labus, N.. (2016). Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 57(4), 551-558.
https://doi.org/10.5937/ZasMat1604551M
conv_148

Matijašević S, Zildžović S, Stojanović J, Đošić M, Nikolić J, Stojanović M, Labus N. Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima. in Zaštita materijala. 2016;57(4):551-558.
doi:10.5937/ZasMat1604551M
conv_148 .

Matijašević, Srđan, Zildžović, Snežana, Stojanović, Jovica, Đošić, Marija, Nikolić, Jelena, Stojanović, Mirjana, Labus, Nebojša, "Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima" in Zaštita materijala, 57, no. 4 (2016):551-558,
https://doi.org/10.5937/ZasMat1604551M .,
conv_148 .

TY  - CONF
AU  - Topalović, Vladimir
AU  - Matijašević, Srđan
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Grujić, Snežana
AU  - Smiljanić, Sonja
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/748
AB  - Glass-ceramic scaffolds similar to bone structure were obtained by the foam replica technique using a polyurethane (PU) foam and powdered polyphosphate glass containing strontium. The parent glass was prepared by the standard melt-quenching method. Polyurethane foam coated with glass particles (< 5μm) was thermally removed and the glass was sintered during 1h at 650 0C. The microstructure, morphology and phase composition of the as-prepared glass-ceramic scaffolds were investigated using the SEM and XRD methods. 3-D porous glass-ceramic scaffold containing bioactive β-Ca3(PO4)2 and β-Ca2P2O7 crystalline phases was fabricated.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 48th International October Conference on Mining and Metallurgy IOCMM 2016
T1  - 3D Bioactive phosphate glass-ceramic scaffolds prepared by the foam replica technique
EP  - 135
SP  - 132
ER  - 

@conference{
author = "Topalović, Vladimir and Matijašević, Srđan and Nikolić, Jelena and Đošić, Marija and Grujić, Snežana and Smiljanić, Sonja",
year = "2016",
abstract = "Glass-ceramic scaffolds similar to bone structure were obtained by the foam replica technique using a polyurethane (PU) foam and powdered polyphosphate glass containing strontium. The parent glass was prepared by the standard melt-quenching method. Polyurethane foam coated with glass particles (< 5μm) was thermally removed and the glass was sintered during 1h at 650 0C. The microstructure, morphology and phase composition of the as-prepared glass-ceramic scaffolds were investigated using the SEM and XRD methods. 3-D porous glass-ceramic scaffold containing bioactive β-Ca3(PO4)2 and β-Ca2P2O7 crystalline phases was fabricated.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "48th International October Conference on Mining and Metallurgy IOCMM 2016",
title = "3D Bioactive phosphate glass-ceramic scaffolds prepared by the foam replica technique",
pages = "135-132"
}

Topalović, V., Matijašević, S., Nikolić, J., Đošić, M., Grujić, S.,& Smiljanić, S.. (2016). 3D Bioactive phosphate glass-ceramic scaffolds prepared by the foam replica technique. in 48th International October Conference on Mining and Metallurgy IOCMM 2016
Bor : University of Belgrade, Technical Faculty in Bor., 132-135.

Topalović V, Matijašević S, Nikolić J, Đošić M, Grujić S, Smiljanić S. 3D Bioactive phosphate glass-ceramic scaffolds prepared by the foam replica technique. in 48th International October Conference on Mining and Metallurgy IOCMM 2016. 2016;:132-135..

Topalović, Vladimir, Matijašević, Srđan, Nikolić, Jelena, Đošić, Marija, Grujić, Snežana, Smiljanić, Sonja, "3D Bioactive phosphate glass-ceramic scaffolds prepared by the foam replica technique" in 48th International October Conference on Mining and Metallurgy IOCMM 2016 (2016):132-135.

TY  - JOUR
AU  - Živanović, Vladimir D.
AU  - Tosić, Mihajlo B.
AU  - Grujić, S.R.
AU  - Matijašević, Srđan
AU  - Stojanović, Jovica
AU  - Nikolić, Jelena
AU  - Smiljanić, Sonja
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/347
AB  - In this study, the crystallization of 30Li(2)O center dot 15Nb(2)O(5)center dot 50SiO(2)center dot 5TiO(2) (mol%) glass was examined. The parent glass was prepared by the standard melt quenching method, and the investigations were performed under non-isothermal and isothermal conditions using the DTA, XRD, SEM and EDS methods. The results revealed primary crystallization of this glass and the dendritic morphology of crystal growth. Three crystalline phases were formed in the glass matrix during crystallization, whereby LiNbO3 was formed as the primary phase, followed by Li2Si2O5 and SiO2 as the secondary. The surface and volume mechanisms of crystallization occur. The condition that both the mechanisms were dominant was determined. In the case of volume crystallization, the characteristics of the nucleation process were examined. The kinetic parameters of crystallization under different mechanisms of crystallization were determined.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass
EP  - 1661
IS  - 3
SP  - 1653
VL  - 119
DO  - 10.1007/s10973-015-4390-x
UR  - conv_723
ER  - 

@article{
author = "Živanović, Vladimir D. and Tosić, Mihajlo B. and Grujić, S.R. and Matijašević, Srđan and Stojanović, Jovica and Nikolić, Jelena and Smiljanić, Sonja",
year = "2015",
abstract = "In this study, the crystallization of 30Li(2)O center dot 15Nb(2)O(5)center dot 50SiO(2)center dot 5TiO(2) (mol%) glass was examined. The parent glass was prepared by the standard melt quenching method, and the investigations were performed under non-isothermal and isothermal conditions using the DTA, XRD, SEM and EDS methods. The results revealed primary crystallization of this glass and the dendritic morphology of crystal growth. Three crystalline phases were formed in the glass matrix during crystallization, whereby LiNbO3 was formed as the primary phase, followed by Li2Si2O5 and SiO2 as the secondary. The surface and volume mechanisms of crystallization occur. The condition that both the mechanisms were dominant was determined. In the case of volume crystallization, the characteristics of the nucleation process were examined. The kinetic parameters of crystallization under different mechanisms of crystallization were determined.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass",
pages = "1661-1653",
number = "3",
volume = "119",
doi = "10.1007/s10973-015-4390-x",
url = "conv_723"
}

Živanović, V. D., Tosić, M. B., Grujić, S.R., Matijašević, S., Stojanović, J., Nikolić, J.,& Smiljanić, S.. (2015). DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 119(3), 1653-1661.
https://doi.org/10.1007/s10973-015-4390-x
conv_723

Živanović VD, Tosić MB, Grujić S, Matijašević S, Stojanović J, Nikolić J, Smiljanić S. DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass. in Journal of Thermal Analysis and Calorimetry. 2015;119(3):1653-1661.
doi:10.1007/s10973-015-4390-x
conv_723 .

Živanović, Vladimir D., Tosić, Mihajlo B., Grujić, S.R., Matijašević, Srđan, Stojanović, Jovica, Nikolić, Jelena, Smiljanić, Sonja, "DTA study of the crystallization of Li2O-Nb2O5-SiO2-TiO2 glass" in Journal of Thermal Analysis and Calorimetry, 119, no. 3 (2015):1653-1661,
https://doi.org/10.1007/s10973-015-4390-x .,
conv_723 .

TY  - CONF
AU  - Nikolić, Jelena
AU  - Vujošević, Ana
AU  - Živanović, Vladimir
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/746
AB  - In this paper the results of investigation of the polyphosphate glasses dissolution in acid solution at temperatures of 20, 30 and 37 °C were presented. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. Mechanism of chemical reactivity of polyphosphate glasses, acting as slow release fertilizers in soil solutions was presented.  The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XXIII International Conference ``ECOLOGICAL TRUTH`` ECO-IST`15
T1  - The influence of glass composition on the dissolution rate
EP  - 319
SP  - 314
ER  - 

@conference{
author = "Nikolić, Jelena and Vujošević, Ana and Živanović, Vladimir and Matijašević, Srđan and Topalović, Vladimir and Zildžović, Snežana and Grujić, Snežana",
year = "2015",
abstract = "In this paper the results of investigation of the polyphosphate glasses dissolution in acid solution at temperatures of 20, 30 and 37 °C were presented. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. Mechanism of chemical reactivity of polyphosphate glasses, acting as slow release fertilizers in soil solutions was presented.  The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XXIII International Conference ``ECOLOGICAL TRUTH`` ECO-IST`15",
title = "The influence of glass composition on the dissolution rate",
pages = "319-314"
}

Nikolić, J., Vujošević, A., Živanović, V., Matijašević, S., Topalović, V., Zildžović, S.,& Grujić, S.. (2015). The influence of glass composition on the dissolution rate. in XXIII International Conference ``ECOLOGICAL TRUTH`` ECO-IST`15
Bor : University of Belgrade, Technical Faculty in Bor., 314-319.

Nikolić J, Vujošević A, Živanović V, Matijašević S, Topalović V, Zildžović S, Grujić S. The influence of glass composition on the dissolution rate. in XXIII International Conference ``ECOLOGICAL TRUTH`` ECO-IST`15. 2015;:314-319..

Nikolić, Jelena, Vujošević, Ana, Živanović, Vladimir, Matijašević, Srđan, Topalović, Vladimir, Zildžović, Snežana, Grujić, Snežana, "The influence of glass composition on the dissolution rate" in XXIII International Conference ``ECOLOGICAL TRUTH`` ECO-IST`15 (2015):314-319.

TY  - CONF
AU  - Nikolić, Jelena
AU  - Živanović, Vladimir
AU  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Grujić, Snežana
AU  - Smiljanić, Sonja
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/744
AB  - In this paper the results of examination of the dissolution process of the polyphosphate glass 45P2O5×25K2O×15CaO×10MgO×3SiO2×ZnO×MnO [mol%] in 2% citric acid at temperatures of 15, 20 and 30 ºC were presented. The dissolution experiments were performed on glass powder grain size of 0.1-0.3 mm and 0.3-0.65 mm. The mass loss of glass, normalized concentration of PO43+ and K+ ions and the conductivity of solution (χ) as a function of leaching time was determined. It was revealed that for short reaction times, the changes of normalized mass loss (fm) are linear with time and the rates of glass dissolution under given conditions are highest. By increasing the dissolution time the dissolution rate of glass decreased. The initial release rates r0 (PO43-) = 3.550 [g/m2h] and r0 (K+) = 2.133 [g/m2h] at t = 300C were calculated for glass powder sample 0.3-0.65mm. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation
PB  - Bor : Mining and Metallurgy Institute Bor
PB  - Belgrade :  Academy of Engineering Science of Serbia
PB  - University of Belgrade
C3  - XVI Balkan mineral processing congress
T1  - Eco-materials for soil remediation based on polyphosphate glasses
EP  - 1011
SP  - 1007
VL  - 2
ER  - 

@conference{
author = "Nikolić, Jelena and Živanović, Vladimir and Matijašević, Srđan and Zildžović, Snežana and Grujić, Snežana and Smiljanić, Sonja",
year = "2015",
abstract = "In this paper the results of examination of the dissolution process of the polyphosphate glass 45P2O5×25K2O×15CaO×10MgO×3SiO2×ZnO×MnO [mol%] in 2% citric acid at temperatures of 15, 20 and 30 ºC were presented. The dissolution experiments were performed on glass powder grain size of 0.1-0.3 mm and 0.3-0.65 mm. The mass loss of glass, normalized concentration of PO43+ and K+ ions and the conductivity of solution (χ) as a function of leaching time was determined. It was revealed that for short reaction times, the changes of normalized mass loss (fm) are linear with time and the rates of glass dissolution under given conditions are highest. By increasing the dissolution time the dissolution rate of glass decreased. The initial release rates r0 (PO43-) = 3.550 [g/m2h] and r0 (K+) = 2.133 [g/m2h] at t = 300C were calculated for glass powder sample 0.3-0.65mm. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation",
publisher = "Bor : Mining and Metallurgy Institute Bor, Belgrade :  Academy of Engineering Science of Serbia, University of Belgrade",
journal = "XVI Balkan mineral processing congress",
title = "Eco-materials for soil remediation based on polyphosphate glasses",
pages = "1011-1007",
volume = "2"
}

Nikolić, J., Živanović, V., Matijašević, S., Zildžović, S., Grujić, S.,& Smiljanić, S.. (2015). Eco-materials for soil remediation based on polyphosphate glasses. in XVI Balkan mineral processing congress
Bor : Mining and Metallurgy Institute Bor., 2, 1007-1011.

Nikolić J, Živanović V, Matijašević S, Zildžović S, Grujić S, Smiljanić S. Eco-materials for soil remediation based on polyphosphate glasses. in XVI Balkan mineral processing congress. 2015;2:1007-1011..

Nikolić, Jelena, Živanović, Vladimir, Matijašević, Srđan, Zildžović, Snežana, Grujić, Snežana, Smiljanić, Sonja, "Eco-materials for soil remediation based on polyphosphate glasses" in XVI Balkan mineral processing congress, 2 (2015):1007-1011.