Crystallization kinetics in glassy Ge20Se80−xInx alloys
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Crystallization kinetics is studied in glassy Ge20Se80−xInx (0 ≤ x ≤ 20) using isothermal annealing at temperatures between the glass transition and melting. D.c. conductivity is taken as a parameter to estimate the extent of crystallization (α). The activation energy of crystallization (ΔE) and the order parameter (n) are calculated by fitting the values of α in the Avrami equations of isothermal crystallization. The results indicate that ΔE is highly composition-dependent, which is explained in terms of the stable phases in the Ge-Se-In system.
KeywordsPolymer Crystallization Activation Energy Glass Transition Stable Phasis
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