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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Solving the classical nucleation theory with respect to the surface energy

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Autor(es):
Cassar, Daniel R.
Número total de Autores: 1
Tipo de documento: Artigo Científico
Fonte: Journal of Non-Crystalline Solids; v. 511, p. 183-185, MAY 1 2019.
Citações Web of Science: 0
Resumo

An essential parameter of the Classical Nucleation Theory (CNT) is the surface energy between a critical-size nucleus and the ambient phase, sigma. In condensed matter, this parameter cannot be experimentally determined independently of CNT. A common practice to obtain sigma is to assume a model for its temperature-dependence and perform a regression of the CNT equation against experimental nucleation data. The drawback of this practice is that assuming the temperature-dependence of sigma adds a bias to the analysis. Nonetheless, this practice is common because an analytical solution of the Classical Nucleation Theory with respect to sigma is not possible considering common expressions of this theory. In this article, a general numerical solution to this problem using the Lambert W function is proposed, tested, and compared with typical regression methods. The major advantage of the proposed method is that there is no need to assume a model for the temperature-dependence of sigma. (AU)

Processo FAPESP: 17/12491-0 - Processos cinéticos em vidros e novas formulações vítreas via aprendizagem de máquina
Beneficiário:Daniel Roberto Cassar
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado