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Crystallization process analysis for Se0.95In0.05 and Se0.90In0.10 chalcogenide glasses using the contemporary isoconversional models

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Abstract

Carrying out crystallization studies for both Se0.95In0.05 and Se0.90In0.10 chalcogenide glasses under non-isothermal conditions at different heating rates, it was realized that a rate controlling process occurs where random nucleation of one- to two-dimensional growth is accompanied with the introduction of up to 10 at% In into glassy Se matrix. The crystallization kinetics together with its dimensionality has been studied using the four currently used isoconversional models (Kissinger–Akahira–Sunose, Ozawa–Flynn–Wall, Tang, and Starink). The activation energy of crystallization (E c) has been determined using these indicated four models where a satisfactory concurrence is achieved. The value of E c shows a decrease while increasing both the In-content as well as the extent of crystallization.

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Authors and Affiliations

  1. Semiconductors Technology Lab., Faculty of Science, Ain Shams University, Cairo, 11566, Egypt

    M. F. Kotkata

  2. Basic Engineering Science Department, Faculty of Engineering, Menofia University, Shebin El-Kom, Egypt

    Sh. A. Mansour

Authors
  1. M. F. Kotkata
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  2. Sh. A. Mansour
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Correspondence to M. F. Kotkata.

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Kotkata, M.F., Mansour, S.A. Crystallization process analysis for Se0.95In0.05 and Se0.90In0.10 chalcogenide glasses using the contemporary isoconversional models. J Therm Anal Calorim 103, 957–965 (2011). https://doi.org/10.1007/s10973-010-1120-2

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  • DOI: https://doi.org/10.1007/s10973-010-1120-2

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