Thermokinetic behavior of the Al2O3-PbO-B2O3 glasses

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dc.contributor.author Chromcikova, Maria
dc.contributor.author Svoboda, Roman
dc.contributor.author Hruska, Branislav
dc.contributor.author Osipov, Armenak A
dc.contributor.author Osipova, Leyla M
dc.contributor.author Pecusova, Beata
dc.contributor.author Nowicka, Aleksandra
dc.contributor.author Liska, Marek
dc.date.accessioned 2023-07-12T13:15:34Z
dc.date.available 2023-07-12T13:15:34Z
dc.date.issued 2022
dc.identifier.issn 0022-3093
dc.identifier.uri https://hdl.handle.net/10195/81234
dc.description.abstract Thermokinetic behavior of the Al2O3-PbO-B2O3 glassy system was investigated by means of differential scanning calorimetry, X-ray diffraction analysis and Raman spectroscopy. The glass transition kinetics was described in terms of the Tool-Narayanaswamy-Moynihan model. The compositional evolution of the relaxation parameters was explained in terms of the structural changes and movements of the characteristic structural units detected by Raman spectroscopy. Crystal formation in the studied glassy matrices was investigated in dependence on composition and particle size. The crystal growth was suppressed by increasing particle size as well as by increasing Al2O3 content; formation of crystalline boron oxides was replaced by formation of mixed Al2O3/PbO oxides and Pb4B2O7 phase. The nucleation-growth Johnson-Mehl-Avrami model and the empirical autocatalytic model of.Sestak and Berggren were used to describe the complex crystallization kinetics. The Avramov-.Sestak concept of temperature dependent activation energy was successfully applied and tested on the real-life experimental data. The corresponding methodology was critically reviewed. eng
dc.format "121230-1"-"121230-11"
dc.language.iso eng
dc.publisher Elsevier Science BV eng
dc.relation.ispartof Journal of Non-Crystalline Solids, volume 576, issue: January eng
dc.rights pouze v rámci univerzity cze
dc.subject structural relaxation eng
dc.subject crystallization kinetics eng
dc.subject Avramov-Sestak concept eng
dc.subject Al2O3-PbO-B2O3 glasses eng
dc.subject strukturní relaxace cze
dc.subject krystalizační kinetika cze
dc.subject Avramov-Sestak koncept cze
dc.subject Al2O3-PBO-B2O3 skla cze
dc.title Thermokinetic behavior of the Al2O3-PbO-B2O3 glasses eng
dc.title.alternative Termokinetické chování Al2O3-PBO-B2O3 skel cze
dc.type article eng
dc.description.abstract-translated Termokinetické chování skel na bázi Al2O3-PBO-B2O3 bylo studováno technikami DSC, XRD a Ramanovou spektroskopií. Kinetika skelného přechodu byla popsána modelem TNM. Pro popis krystalizační kinetiky byly použity modely JMA a Sestak-Bergrren. Kompoziční trendy termokinetického chování byly popsány. Koncept Avramov-Šesták pro teplotní závislost aktivační energie byl úspěšně aplikován a testován. cze
dc.peerreviewed yes eng
dc.publicationstatus published eng
dc.identifier.doi 10.1016/j.jnoncrysol.2021.121230
dc.relation.publisherversion https://www.sciencedirect.com/science/article/pii/S0022309321005913
dc.identifier.wos 000719057700002
dc.identifier.scopus 2-s2.0-85118844268
dc.identifier.obd 39888010


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