Dinamica rilassamentale di liquidi fragili

Cutroni, M. and Mandanici, A. and Piccolo, A. (1994) Dinamica rilassamentale di liquidi fragili. Accademia Peloritana dei Pericolanti Classe FF.MM.NN., LXXII (Supplement 1). pp. 439-446.

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Abstract

By means of ultrasonic and dielectric relaxation spectroscopy an experimental investigation on the $\alpha$-relaxation process in fragile molecular liquids has been performed. The structural relaxation of glass-formers around the glass transition point is a complex process whose microscopic description constitutes an unsolved problem in condensed matter physics. On the other hand, being this relaxation intimately relatcd to the liquid-glass transition, its explanation represents an essential prerequisite for the interpretation of this last phenomenon. For the analitical representation of the dynamic susceptibilities involved the Cole-Davidson function has been employed while the Vogel-Fulcher-Tamman (VFT) law has been taken into account to describe the temperature dependence of the mean relaxation time. A substantial accord with the dynamical behaviour of very fragile liquids has been found.

Item Type:	Article
Subjects:	M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere Filosofia e belle Arti > 1994 > Supplemento 1 parte 2
Depositing User:	Mr Nunzio Femminò
Date Deposited:	17 Apr 2014 09:01
Last Modified:	17 Apr 2014 09:01
URI:	http://cab.unime.it/mus/id/eprint/5164

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