THERMAL-REACTIONS OF SOLID-STATE AMORPHIZED BORATES AND BORATE GLASSES - A COMPARATIVE-STUDY

The properties and course of phase transition of amorphous berates obt ained by solid-state thermal and mechanical treatment of hydrated bera tes and melt quenched glasses with the compositions of these berates w ere studied. Processes of structural relaxation and crystallization we re considered. It was found that different methods of preparation of a morphous berates and the differences in their structural ordering resu lting from these methods affect the rate and the mechanism of transfor mations occurring during their heating.