Crystal nucleation kinetics of a metastable phase on cordierite glass surfaces

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMora, N. D.-
Autor(es): dc.creatorZanotto, E. D.-
Autor(es): dc.creatorZiemath, E. C.-
Data de aceite: dc.date.accessioned2025-08-21T17:23:52Z-
Data de disponibilização: dc.date.available2025-08-21T17:23:52Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1996-12-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/224394-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/224394-
Descrição: dc.descriptionThe crystal nucleation rates of a metastable phase (Χ) on the surface of a near stoichiometric cordierite glass were determined for temperatures between 839 and 910°C (Tg∼800°C). The surface nucleation kinetics of that phase on our glass, as well as on a stoichiometric glass (2MgO-2Al2O3-5SiO2) studied by other authors, were analysed in terms of the classical nucleation theory, for the first time. It was shown that the effective interfacial energy for surface nucleation is substantially lower than that for homogeneous volume nucleation in silicate glasses, vindicating the assumption of heterogeneous nucleation on free glass surfaces. The average wetting angle between the nucleating crystals and the active solid particles was estimated to be around 46°. The preexponential constant was several orders of magnitude higher than the theoretical values as found for volume homogeneous nucleation in oxide glasses.-
Descrição: dc.descriptionDepartment of Materials Engineering DEMa-UFSCar, PO Box 676, 13565-905 São Carlos (SP)-
Descrição: dc.descriptionDepartment of Physics IGCE UNESP, PO Box 178, 13500-970, Rio Claro (SP)-
Descrição: dc.descriptionDepartment of Physics IGCE UNESP, PO Box 178, 13500-970, Rio Claro (SP)-
Formato: dc.format258-263-
Idioma: dc.languageen-
Relação: dc.relationPhysics and Chemistry of Glasses-
???dc.source???: dc.sourceScopus-
Título: dc.titleCrystal nucleation kinetics of a metastable phase on cordierite glass surfaces-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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