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Structural relaxation of amorphous Ge38S62 studied by length dilatometry and calorimetry

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Abstract

The structural relaxation of Ge38S62 glass has been studied by length dilatometry and calorimetry. The Tool-Narayanaswamy-Moynihan model was applied on obtained data of structural relaxation and parameters of this model were determined: Δh*= 483±2 kJ mol-1, ln(A/s)= -81±1, β= 0.7±0.1 and x=0.6±0.1. Both dilatometric and calorimetric relaxation data were compared on the basis of the fictive relaxation rate. It was found that the relaxation rates are very similar and well correspond to the prediction of phenomenological model.

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Authors and Affiliations

  1. Department of Inorganic Technology, University of Pardubice, Faculty of Chemical Technology, Nám. Čs. Legií 565, Pardubice, 532 10, Czech Republic

    P. Pustková

  2. Faculty of Chemical Technology, Department of Physical Chemistry, University of Pardubice, Nám. Čs. Legií 565, Pardubice, 532 10, Czech Republic

    J. Shánělová, P. Čičmanec & J. Málek

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  1. P. Pustková
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  2. J. Shánělová
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  3. P. Čičmanec
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  4. J. Málek
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Pustková, P., Shánělová, J., Čičmanec, P. et al. Structural relaxation of amorphous Ge38S62 studied by length dilatometry and calorimetry. Journal of Thermal Analysis and Calorimetry 72, 355–362 (2003). https://doi.org/10.1023/A:1023965029780

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