TITLE

A simple physical picture of liquid–glass transition

AUTHOR(S)
Tanaka, Hajime
PUB. DATE
November 1996
SOURCE
Journal of Chemical Physics;11/22/1996, Vol. 105 Issue 20, p9375
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate here a simple physical picture of liquid–glass transition, which qualitatively explains most of the dynamic features from the strong-glass to the fragile-glass limit. We classify the dynamic environment of a molecule into loose and tight cages. Glass transition is then characterized by two transitions: (i) the appearance of tight cages at the crossover temperature Tc and (ii) the disappearance of loose cages at the Vogel–Fulcher temperature T0. We propose that the fragility of glass is strongly correlated with the relative importance of the topological confinement against the anisotropic attractive intermolecular interactions for the formation of tight cage. © 1996 American Institute of Physics.
ACCESSION #
7639805

 

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