TY  - JOUR
AU  - Drmanić, Saša
AU  - Nikolić, J.
AU  - Šekularac, Gavrilo
AU  - Ranković, Bojan
AU  - Jovanović, Bratislav Ž.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2586
AB  - Ultraviolet absorption spectra of three isomeric pyridinecarboxylic acids (picolinic, nicotinic, and isonicotinic acids) were measured in 18 various solvents, in the wavelength range from 200 to 400 nm. In order to analyze the solvent effect on the obtained absorption maxima, the ultraviolet absorption frequencies of the electronic transitions in the carbonyl group of the examined acids were correlated using a total solvatochromic equation in the forms nu(max) = nu(0) + s pi(*) + a alpha + b beta and nu(max) = nu(0) + s pi(*) + b beta, where nu(max) is the absorption frequency (1/nu(max)), pi(*) is a measure of the solvent polarity, alpha represents a scale of the solvent hydrogen bond donor acidity, and beta represents a scale of the solvent hydrogen bond acceptor basicity. Correlation of the spectroscopic data was carried out by means of multiple linear regression analysis. The effects of two different solvent types on the ultraviolet absorption maxima of the examined acids were compared and discussed.
PB  - Springer, New York
T2  - Journal of Applied Spectroscopy
T1  - Solvent and Structure Effects on Electronic Absorption Spectra of the Isomeric Pyridinecarboxylic Acids
EP  - 834
IS  - 6
SP  - 829
VL  - 80
DO  - 10.1007/s10812-014-9851-7
ER  - 

@article{
author = "Drmanić, Saša and Nikolić, J. and Šekularac, Gavrilo and Ranković, Bojan and Jovanović, Bratislav Ž.",
year = "2014",
abstract = "Ultraviolet absorption spectra of three isomeric pyridinecarboxylic acids (picolinic, nicotinic, and isonicotinic acids) were measured in 18 various solvents, in the wavelength range from 200 to 400 nm. In order to analyze the solvent effect on the obtained absorption maxima, the ultraviolet absorption frequencies of the electronic transitions in the carbonyl group of the examined acids were correlated using a total solvatochromic equation in the forms nu(max) = nu(0) + s pi(*) + a alpha + b beta and nu(max) = nu(0) + s pi(*) + b beta, where nu(max) is the absorption frequency (1/nu(max)), pi(*) is a measure of the solvent polarity, alpha represents a scale of the solvent hydrogen bond donor acidity, and beta represents a scale of the solvent hydrogen bond acceptor basicity. Correlation of the spectroscopic data was carried out by means of multiple linear regression analysis. The effects of two different solvent types on the ultraviolet absorption maxima of the examined acids were compared and discussed.",
publisher = "Springer, New York",
journal = "Journal of Applied Spectroscopy",
title = "Solvent and Structure Effects on Electronic Absorption Spectra of the Isomeric Pyridinecarboxylic Acids",
pages = "834-829",
number = "6",
volume = "80",
doi = "10.1007/s10812-014-9851-7"
}

Drmanić, S., Nikolić, J., Šekularac, G., Ranković, B.,& Jovanović, B. Ž.. (2014). Solvent and Structure Effects on Electronic Absorption Spectra of the Isomeric Pyridinecarboxylic Acids. in Journal of Applied Spectroscopy
Springer, New York., 80(6), 829-834.
https://doi.org/10.1007/s10812-014-9851-7

Drmanić S, Nikolić J, Šekularac G, Ranković B, Jovanović BŽ. Solvent and Structure Effects on Electronic Absorption Spectra of the Isomeric Pyridinecarboxylic Acids. in Journal of Applied Spectroscopy. 2014;80(6):829-834.
doi:10.1007/s10812-014-9851-7 .

Drmanić, Saša, Nikolić, J., Šekularac, Gavrilo, Ranković, Bojan, Jovanović, Bratislav Ž., "Solvent and Structure Effects on Electronic Absorption Spectra of the Isomeric Pyridinecarboxylic Acids" in Journal of Applied Spectroscopy, 80, no. 6 (2014):829-834,
https://doi.org/10.1007/s10812-014-9851-7 . .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - JOUR
AU  - Živanović, Vladimir D.
AU  - Grujić, Snežana
AU  - Tošić, Mihajlo B.
AU  - Blagojević, Nikola S.
AU  - Nikolić, J. D.
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1515
AB  - The crystallization of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal condition was studied. In powdered glass with particle sizes less than 0.15 mm, surface crystallization was dominant and an activation energy of crystal growth of E-a,E-s = 327 +/- 50 kJ mol(-1) was calculated. In the size range 0.15 to 0.45 mm, both surface and volume crystallization occurred. For particle sizes  gt 0.45 mm, volume crystallization dominated with spherulitic morphology of the crystals growth and E-a,E-v = 359 +/- 64 kJ mol(-1) was calculated.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Non-isothermal crystallization of k2o center dot tio2 center dot 3geo(2) glass
EP  - 432
IS  - 2
SP  - 427
VL  - 96
DO  - 10.1007/s10973-008-9335-1
ER  - 

@article{
author = "Živanović, Vladimir D. and Grujić, Snežana and Tošić, Mihajlo B. and Blagojević, Nikola S. and Nikolić, J. D.",
year = "2009",
abstract = "The crystallization of K2O center dot TiO2 center dot 3GeO(2) glass under non-isothermal condition was studied. In powdered glass with particle sizes less than 0.15 mm, surface crystallization was dominant and an activation energy of crystal growth of E-a,E-s = 327 +/- 50 kJ mol(-1) was calculated. In the size range 0.15 to 0.45 mm, both surface and volume crystallization occurred. For particle sizes  gt 0.45 mm, volume crystallization dominated with spherulitic morphology of the crystals growth and E-a,E-v = 359 +/- 64 kJ mol(-1) was calculated.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Non-isothermal crystallization of k2o center dot tio2 center dot 3geo(2) glass",
pages = "432-427",
number = "2",
volume = "96",
doi = "10.1007/s10973-008-9335-1"
}

Živanović, V. D., Grujić, S., Tošić, M. B., Blagojević, N. S.,& Nikolić, J. D.. (2009). Non-isothermal crystallization of k2o center dot tio2 center dot 3geo(2) glass. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 96(2), 427-432.
https://doi.org/10.1007/s10973-008-9335-1

Živanović VD, Grujić S, Tošić MB, Blagojević NS, Nikolić JD. Non-isothermal crystallization of k2o center dot tio2 center dot 3geo(2) glass. in Journal of Thermal Analysis and Calorimetry. 2009;96(2):427-432.
doi:10.1007/s10973-008-9335-1 .

Živanović, Vladimir D., Grujić, Snežana, Tošić, Mihajlo B., Blagojević, Nikola S., Nikolić, J. D., "Non-isothermal crystallization of k2o center dot tio2 center dot 3geo(2) glass" in Journal of Thermal Analysis and Calorimetry, 96, no. 2 (2009):427-432,
https://doi.org/10.1007/s10973-008-9335-1 . .

TY  - JOUR
AU  - Grujić, S.
AU  - Blagojević, N.
AU  - Tošić, M.
AU  - Živanović, V.
AU  - Nikolić, J.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5554
AB  - Crystallization kinetics of K2O·TiO2· 3GeO2 glass was investigated by differential thermal analysis (DTA). Experiments were performed on powder samples with a particle size < 0.037 mm. The glass samples were heated at different rates in the temperature range 20-750 °C. The kinetic parameters, activation energy for the crystallization process, Ec and Avrami exponent, n were calculated. Powder X-ray diffraction analysis (XRD) of crystallized glass reveals the presence of crystalline K2O·TiO2·3GeO2 indicating polymorphic crystallization with interface controlled crystal growth.
PB  - International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA
EP  - 338
IS  - 3
SP  - 333
VL  - 40
DO  - 10.2298/SOS0803333G
ER  - 

@article{
author = "Grujić, S. and Blagojević, N. and Tošić, M. and Živanović, V. and Nikolić, J.",
year = "2008",
abstract = "Crystallization kinetics of K2O·TiO2· 3GeO2 glass was investigated by differential thermal analysis (DTA). Experiments were performed on powder samples with a particle size < 0.037 mm. The glass samples were heated at different rates in the temperature range 20-750 °C. The kinetic parameters, activation energy for the crystallization process, Ec and Avrami exponent, n were calculated. Powder X-ray diffraction analysis (XRD) of crystallized glass reveals the presence of crystalline K2O·TiO2·3GeO2 indicating polymorphic crystallization with interface controlled crystal growth.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA",
pages = "338-333",
number = "3",
volume = "40",
doi = "10.2298/SOS0803333G"
}

Grujić, S., Blagojević, N., Tošić, M., Živanović, V.,& Nikolić, J.. (2008). Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA. in Science of Sintering
International Institute for the Science of Sintering., 40(3), 333-338.
https://doi.org/10.2298/SOS0803333G

Grujić S, Blagojević N, Tošić M, Živanović V, Nikolić J. Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA. in Science of Sintering. 2008;40(3):333-338.
doi:10.2298/SOS0803333G .

Grujić, S., Blagojević, N., Tošić, M., Živanović, V., Nikolić, J., "Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA" in Science of Sintering, 40, no. 3 (2008):333-338,
https://doi.org/10.2298/SOS0803333G . .

TY  - JOUR
AU  - Tošić, Mihajlo B.
AU  - Živanović, Vladimir D.
AU  - Grujić, Snežana
AU  - Stojanović, Jovica
AU  - Nikolić, J. D.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1242
AB  - This paper presents the results of a study of the primary crystallization of a multicomponent mixed anion silicate glass. The primary phase, leucite, and the secondary phase, diopside, were formed by surface crystallization, while the secondary phase, phlogopite, was formed by volume crystallization. The influence of the particle size of glass powder samples in the range 0-1 mm on the temperature of the DTA crystallization peak, T-p, the height of the peak, (delta T)(p), and the parameter T-p(2)/(Delta T)(p) was studied. The behaviors of the parameters (delta T)(p) and T-p(2)/(Delta T)(p). depend only on the change in the surface-to-volume nuclei ratio, as is the P case with polymorphic crystallization. However, the particle size ranges in which the surface, volume and mixed crystallization mechanism dominate are considerably narrower for this glass. The influence of the duration of a pre-DTA heat treatment on the parameters T-p, (delta T)(p), and Delta T-p for fixed temperatures in the range T = 550-750 degrees C was investigated. The T-p of the samples thermally treated for different times, at fixed temperatures, decreased up to t = 5 h and then increased to a value close to that of an as-quenched sample, after which the value remained constant. The curves of (delta T)(p), and Delta T-p as a function of time for fixed temperatures show a maximum. The influence of the temperature of the pre-DTA heat treatment on the parameters T-p (delta T)(p), and Delta T-p, for fixed times of t = 1-5 h was also investigated. On increasing the pre-DTA heat treatment time, the curves changed significantly. The curves for 3 and 5 h in the temperature range 580-660 degrees C were similar to the nucleation curve, which indicated that the volume nucleation process proceeded in this temperature range. The behavior of these parameters, as a result of the simultaneous action of different nucleation mechanisms and crystal growth differ from those previously reported for the case of polymorphic crystallization.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Non-Crystalline Solids
T1  - A study of the primary crystallization of a mixed anion silicate glass
EP  - 3704
IS  - 31
SP  - 3694
VL  - 354
DO  - 10.1016/j.jnoncrysol.2008.04.011
ER  - 

@article{
author = "Tošić, Mihajlo B. and Živanović, Vladimir D. and Grujić, Snežana and Stojanović, Jovica and Nikolić, J. D.",
year = "2008",
abstract = "This paper presents the results of a study of the primary crystallization of a multicomponent mixed anion silicate glass. The primary phase, leucite, and the secondary phase, diopside, were formed by surface crystallization, while the secondary phase, phlogopite, was formed by volume crystallization. The influence of the particle size of glass powder samples in the range 0-1 mm on the temperature of the DTA crystallization peak, T-p, the height of the peak, (delta T)(p), and the parameter T-p(2)/(Delta T)(p) was studied. The behaviors of the parameters (delta T)(p) and T-p(2)/(Delta T)(p). depend only on the change in the surface-to-volume nuclei ratio, as is the P case with polymorphic crystallization. However, the particle size ranges in which the surface, volume and mixed crystallization mechanism dominate are considerably narrower for this glass. The influence of the duration of a pre-DTA heat treatment on the parameters T-p, (delta T)(p), and Delta T-p for fixed temperatures in the range T = 550-750 degrees C was investigated. The T-p of the samples thermally treated for different times, at fixed temperatures, decreased up to t = 5 h and then increased to a value close to that of an as-quenched sample, after which the value remained constant. The curves of (delta T)(p), and Delta T-p as a function of time for fixed temperatures show a maximum. The influence of the temperature of the pre-DTA heat treatment on the parameters T-p (delta T)(p), and Delta T-p, for fixed times of t = 1-5 h was also investigated. On increasing the pre-DTA heat treatment time, the curves changed significantly. The curves for 3 and 5 h in the temperature range 580-660 degrees C were similar to the nucleation curve, which indicated that the volume nucleation process proceeded in this temperature range. The behavior of these parameters, as a result of the simultaneous action of different nucleation mechanisms and crystal growth differ from those previously reported for the case of polymorphic crystallization.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Non-Crystalline Solids",
title = "A study of the primary crystallization of a mixed anion silicate glass",
pages = "3704-3694",
number = "31",
volume = "354",
doi = "10.1016/j.jnoncrysol.2008.04.011"
}

Tošić, M. B., Živanović, V. D., Grujić, S., Stojanović, J.,& Nikolić, J. D.. (2008). A study of the primary crystallization of a mixed anion silicate glass. in Journal of Non-Crystalline Solids
Elsevier Science Bv, Amsterdam., 354(31), 3694-3704.
https://doi.org/10.1016/j.jnoncrysol.2008.04.011

Tošić MB, Živanović VD, Grujić S, Stojanović J, Nikolić JD. A study of the primary crystallization of a mixed anion silicate glass. in Journal of Non-Crystalline Solids. 2008;354(31):3694-3704.
doi:10.1016/j.jnoncrysol.2008.04.011 .

Tošić, Mihajlo B., Živanović, Vladimir D., Grujić, Snežana, Stojanović, Jovica, Nikolić, J. D., "A study of the primary crystallization of a mixed anion silicate glass" in Journal of Non-Crystalline Solids, 354, no. 31 (2008):3694-3704,
https://doi.org/10.1016/j.jnoncrysol.2008.04.011 . .