A. Dubček University of Trenčín and RONA Lednické Rovne Vitrum Laugaricio (VILA) – Joint Glass Center of Institute of Inorganic Chemistry SAS Trenčín Slovak Republic 91150 Študentská 2 Trenčín Slovak Republic 91150 Študentská 2
The results of the StepScan
DSC obtained for 15Na2O⋅xMgO⋅(10–x)CaO⋅75SiO2 glasses were
described in the frame of the commonly accepted theory of the glass transition.
A new simplified model of the reversible part of StepScan DSC record
was developed on the basis of the Tool Narayanaswamy Moynihan relaxation theory.
Equivalence between the formal activation energy of enthalpy relaxation process
on one side, and the viscous flow activation enthalpy on the other side, was