Abstract
A linear correlation has been established between the empirical parameter D of the Enkel equation for the viscosity and the vitrification temperature Tg of inorganic glasses, which is discussed within the framework of the model of delocalized atoms. From an analysis of this correlation, certain information on the vitrification and the viscous flow of glass-forming liquids follows. The value of D is an unambiguous function of the atom delocalization energy.
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