Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods
Аутори
Matijašević, Srđan D.Grujić, Snežana R.
Topalović, Vladimir S.
Nikolić, Jelena D.
Smiljanić, Sonja V.
Labus, Nebojša
Savić, Veljko V.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Crystallization kinetics of 22.5Li2O•10Al2O3 •30GeO2•37.5P2 O5 (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 (Tp1) which belongs to the precipitation of LiGe2 (PO4)3 phase in the glass. The activation energy of glass crystallization (Ea) was determined using different isokinetic methods. The dependence of Ea on the degree of glass-crystal transformation (α) was studied using model-free isoconversional linear integral KAS (Kissinger–Akahira–Sunose) and FWO (Flynn–Wall– Ozawa) methods. It was shown that the Ea varies with α and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth. © 2016 Authors. Published by the International Institute for the Science of Sintering.
Кључне речи:
crystallization kinetics / DTA / lithium germanophosphate glass / nucleationИзвор:
Science of Sintering, 2018, 50, 2, 193-203Издавач:
- Belgrade : International Institute for the Science of Sintering
Финансирање / пројекти:
- Развој стакала са контролисаним отпуштањем јона за примену у пољопривреди и медицини (RS-MESTD-Technological Development (TD or TR)-34001)
- Феномени и процеси синтезе нових стакластих и наноструктурних стакло-керамичких материјала (RS-MESTD-Basic Research (BR or ON)-172004)
DOI: 10.2298/SOS1802193M
ISSN: 0350-820X
WoS: 000452975300006
Scopus: 2-s2.0-85051428086
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Matijašević, Srđan D. AU - Grujić, Snežana R. AU - Topalović, Vladimir S. AU - Nikolić, Jelena D. AU - Smiljanić, Sonja V. AU - Labus, Nebojša AU - Savić, Veljko V. PY - 2018 UR - https://dais.sanu.ac.rs/123456789/3747 AB - Crystallization kinetics of 22.5Li2O•10Al2O3 •30GeO2•37.5P2 O5 (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 (Tp1) which belongs to the precipitation of LiGe2 (PO4)3 phase in the glass. The activation energy of glass crystallization (Ea) was determined using different isokinetic methods. The dependence of Ea on the degree of glass-crystal transformation (α) was studied using model-free isoconversional linear integral KAS (Kissinger–Akahira–Sunose) and FWO (Flynn–Wall– Ozawa) methods. It was shown that the Ea varies with α and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth. © 2016 Authors. Published by the International Institute for the Science of Sintering. PB - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods SP - 193 EP - 203 VL - 50 IS - 2 DO - 10.2298/SOS1802193M UR - https://hdl.handle.net/21.15107/rcub_dais_3747 ER -
@article{ author = "Matijašević, Srđan D. and Grujić, Snežana R. and Topalović, Vladimir S. and Nikolić, Jelena D. and Smiljanić, Sonja V. and Labus, Nebojša and Savić, Veljko V.", year = "2018", abstract = "Crystallization kinetics of 22.5Li2O•10Al2O3 •30GeO2•37.5P2 O5 (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 (Tp1) which belongs to the precipitation of LiGe2 (PO4)3 phase in the glass. The activation energy of glass crystallization (Ea) was determined using different isokinetic methods. The dependence of Ea on the degree of glass-crystal transformation (α) was studied using model-free isoconversional linear integral KAS (Kissinger–Akahira–Sunose) and FWO (Flynn–Wall– Ozawa) methods. It was shown that the Ea varies with α and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth. © 2016 Authors. Published by the International Institute for the Science of Sintering.", publisher = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods", pages = "193-203", volume = "50", number = "2", doi = "10.2298/SOS1802193M", url = "https://hdl.handle.net/21.15107/rcub_dais_3747" }
Matijašević, S. D., Grujić, S. R., Topalović, V. S., Nikolić, J. D., Smiljanić, S. V., Labus, N.,& Savić, V. V.. (2018). Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 50(2), 193-203. https://doi.org/10.2298/SOS1802193M https://hdl.handle.net/21.15107/rcub_dais_3747
Matijašević SD, Grujić SR, Topalović VS, Nikolić JD, Smiljanić SV, Labus N, Savić VV. 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 https://hdl.handle.net/21.15107/rcub_dais_3747 .
Matijašević, Srđan D., Grujić, Snežana R., Topalović, Vladimir S., Nikolić, Jelena D., Smiljanić, Sonja V., Labus, Nebojša, Savić, Veljko V., "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 ., https://hdl.handle.net/21.15107/rcub_dais_3747 .