On the variation of the maximum crystal nucleation rate temperature with glass transition temperature

Autor(es)

Gupta, Prabhat K. ^{[1, 2]} ; Cassar, Daniel R. ^[2] ; Zanotto, Edgar D. ^[2]

Afiliação do(s) autor(es)

^[1] Ohio State Univ, Columbus, OH 43210 - USA

^[2] Univ Fed Sao Carlos, Dept Mat Engn, Vitreous Mat Lab LaMaV, BR-13560 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Non-Crystalline Solids; v. 442, p. 34-39, JUN 15 2016.
• Citações Web of Science: 4

Resumo

The variation of the maximum nudeation rate temperature (T{*}) with respect to the glass transition temperature (T-g) is analyzed as a function of system parameters such as fragility. Calculated values are compared with experimental results for six stoichiometric oxide systems that are known to exhibit homogeneous nucleation. An examination of T{*}(T-g) relation supports the experimental observation that liquids having T{*} > T-g tend to exhibit homogeneous nucleation whereas only heterogeneous nucleation is observed in other systems. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 15/01848-9 - Cristalização próxima a TG de vidros líquidos super-resfriados
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional