Kinetic Study of _disibledevent= 0, 2, 4, 6) Chalcogenide Glasses - Journal of Crystallization Process and Technology

JCPT > Vol.4 No.2, April 2014

Kinetic Study of Non-Isothermal Crystallization in Se_90-xZn₁₀Sb_x (x = 0, 2, 4, 6) Chalcogenide Glasses ()

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DOI: 10.4236/jcpt.2014.42014 3,274 Downloads 5,091 Views Citations

Author(s)

Lamia Heireche, Mohamed Heireche, Maamar Belhadji

Affiliation(s)

Physics Department, Faculty of Science, Oran University, Oran, Algeria.

ABSTRACT

Crystallization and glass transition kinetics of Se_90-xZn₁₀Sb_x(x = 0, 2, 4, 6) chalcogenide glasses prepared by conventional melt-quenching technique were studied under non-isothermal condition using a differential scanning Calorimeter (DSC) measurement at different heating rates 5, 7, 10 and 12°C/min. The glass transition temperatures T_g, the crystallization temperatures T_c and the peak temperatures of crystallization T_p were found to be dependent on the compositions and the heating rates. From the dependence on the heating rates of T_g and T_p, the activation energy for glass transition, E_g, and the activation energy for crystallization, E_c, are calculated and their composition dependence is discussed. The activation energy of glass transition E_g, Avrami index n, dimensionality of growth m and activation energy of crystallization E_chave been determined from different models.

KEYWORDS

Crystallization Kinetics, Chalcogenide Glasses, Crystallization Temperature, Activation Energy, Differential Scanning Calorimetry

Share and Cite:

Heireche, L. , Heireche, M. and Belhadji, M. (2014) Kinetic Study of Non-Isothermal Crystallization in Se_90-xZn₁₀Sb_x (x = 0, 2, 4, 6) Chalcogenide Glasses. Journal of Crystallization Process and Technology, 4, 111-120. doi: 10.4236/jcpt.2014.42014.

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