Eur. Phys. J. Appl. Phys. (2013) 62: 20106
https://doi.org/10.1051/epjap/2013120463

Calorimetric study of thermal crystallization kinetics in Se_78-xTe₂₀Sn₂Pb_x (0 ≤ x ≤ 6) alloys

Department of Physics, Banaras Hindu University, Varanasi 221005, India

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Received: 12 October 2012
Accepted: 6 February 2013
Published online: 22 May 2013

Abstract

Glassy samples of Se_78−xTe₂₀Sn₂Pb_x (0 ≤ x ≤ 6) system are prepared by melt quenching method. For non-isothermal study of crystallization kinetics, DSC scans have been taken at the heating rates 5, 10, 15 and 20 K/min in non-isothermal mode. Activation energy of crystallization (E_c) has been calculated using Kissinger method, Matusita-Sakka method and Augis-Bennett method. Various kinetic parameters of crystallization kinetics like peak crystallization temperature (T_c), Rate constants (K) and order parameter (n) are determined using these DSC scans. Thermodynamic parameters such as crystallization enthalpy (ΔH_c) and entropy change during the crystallization (ΔS) are also evaluated. Results are discussed using chemical bond approach.