Kinetics of the glass transition in As22S78 chalcogenide glass: Activation energy and fragility index
作者： A.A. Abu-Sehly
DOI: 10.1016/J.MATCHEMPHYS.2010.09.074
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摘要: Abstract Differential scanning calorimetry (DSC) has been used to probe the dynamics of glass transition in As22S78 chalcogenide glass. Non-isothermal measurements were performed at different heating rates (5–35 K min−1). The experimental result this kinetic phenomenon was analyzed on basis relaxation process occurring temperature range. activation energy determined from rate dependence temperature. fragility index m estimated process, which characterizes transition. Different methods as well isoconversional used. Isoconversional analysis data shows that is varying with degree transformation (and hence temperature) glassy supercooled phase.
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