The present work furnishes an operative definition for the fragility degree by using elastic incoherent neutron scattering ~EINS!. Such a definition is based on the relation between viscosity, a macroscopic quantity, and the atomic mean-square displacement, which refers to a nanoscopic property. This procedure has been used to analyze a set of glass-forming systems and it allows to obtain a linear dependence of the fragility parameter M, obtained by EINS, on the fragility parameter m, obtained by viscosity measurements.
Fragility by Elastic Incoherent Neutron Scattering
MAGAZU', Salvatore;MAISANO, Giacomo;MIGLIARDO, Federica
2004-01-01
Abstract
The present work furnishes an operative definition for the fragility degree by using elastic incoherent neutron scattering ~EINS!. Such a definition is based on the relation between viscosity, a macroscopic quantity, and the atomic mean-square displacement, which refers to a nanoscopic property. This procedure has been used to analyze a set of glass-forming systems and it allows to obtain a linear dependence of the fragility parameter M, obtained by EINS, on the fragility parameter m, obtained by viscosity measurements.File in questo prodotto:
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