D. S. Sanditov, S. S. Badmaev, Sh. B. Tsydypov, and B. D. Sanditov
Buryat State University, ul. Smolina 24a, Ulan-Ude, 670000 Buryat Republic, Russia
Received June 19, 2002
Abstract—The activation volume and the free activation energy of viscous flow of alkali silicate glasses at the
glass transition temperature are estimated in the framework of the fluctuation free volume theory. The results
are in agreement with the data obtained in terms of the valence-configurational theory of viscous flow. The
interrelation between the parameters of these theories is discussed.
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