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Kinetic Studies of Crystallization in Ca1-xMgx(PO3)2Glasses

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Abstract

The crystallization kinetics of Ca1-xMgx(PO3)2glasses was studied for powder and bulk samples of the compositions x=0, 0.5 and 1.0 by means of DSC. The activation energy calculated by the Freedman method or the Kissinger method is smaller for the mixed glass C0.5Mg0.5(PO3)2than for the glasses with x=0 and 1.0. For most of the samples, the two-parameter Šesták-Berggren equation gives a better description of the crystallization kinetics; only for powder Ca(PO3)2and bulk Mg(PO3)2does the Johnson-Mehl-Avrami model fit better with the experimental data.

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Authors and Affiliations

  1. Faculty of Chemical Technology, University of Pardubice, 53210, Pardubice, Czech Republic

    P. Mošner, P. Prokupková & L. Koudelka

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  1. P. Mošner
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  2. P. Prokupková
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  3. L. Koudelka
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Mošner, P., Prokupková, P. & Koudelka, L. Kinetic Studies of Crystallization in Ca1-xMgx(PO3)2Glasses. Journal of Thermal Analysis and Calorimetry 54, 937–945 (1998). https://doi.org/10.1023/A:1010124811597

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