Composition dependence of the activation energy of the glass transition in some chalcogenide glasses |
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| Authors: | N Mehta A Kumar |
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| Institution: | 1. Department of Physics , Banaras Hindu University , Varanasi, India dr_neeraj_mehta@yahoo.co.in;3. Department of Physics , Harcourt Butler Technological Institute , Kanpur, India |
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| Abstract: | The activation energy (E t) of the glass transition process has been obtained for glassy Se80? x Te20M x (M = Ag, Cd, In, Sb) and Se100? x M x (M = In, Te, Sb) systems using differential scanning calorimetry. The composition dependence of E t is explained in terms of fragility index for the systems. A reversal in the trend of the E t is explained using topological models. |
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| Keywords: | chalcogenide glasses glass transition DSC |
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