Abstract
In this work, we have treated the glass transition or pre-crystallization phenomenon as glass/amorphous phase transition. Particularly, we have reported the thermal analysis of so-called glass/amorphous phase transition in recently prepared silver containing semiconducting glasses of third generation (i.e., quaternary system) in terms of glass transition fraction. We have used a state of art DSC technique to understand the glass transition behavior. Present multi-component glasses of SeTeSnAg (STSA) system have been analyzed by using DSC scans at different heating rates. Model-free iso-conversional methods have been used for the study of pre-crystallization kinetics of present glasses. Variation of the glass transition activation energy Eg with the extent of conversion α has been also analyzed. Other significant parameters like rate constant of re-crystallization, order-parameter of pre-crystallization, Hruby number and thermal stability have been determined. We have observed some intimation regarding the conditions of structural change during glass/amorphous phase transition in terms of mode coupling theory.
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