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Relaxation behavior of selenium based glasses

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Summary

Relaxation behavior of GeySe100-y (y=8 and 10) glasses related to the viscosity behavior was studied by dilatometry. The method of two consecutive temperature jumps was applied to study the volume relaxation. The relaxation response can be described by Tool-Narayanaswamy-Moynihan model and the parameters of this model Δh*, β, x, A were determined using curve fitting method and characteristic times method. Viscosities of studied materials in the range of 108-1013 Pas were measured by penetration method. The calculated values of activation energies of viscous flow Eη are close to the values of effective activation energies of relaxation Δh* for studied chalcogenide materials.

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Authors and Affiliations

  1. Department of Inorganic Technology, University of Pardubice, Cs. Legii sq. 565, Pardubice 532 10, Czech Republic

    P. Pustková

  2. Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Cs. Legii sq. 565, Pardubice 532 10, Czech Republic

    J. Shánelová

  3. Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Cs. Legii sq. 565, Pardubice 532 10, Czech Republic

    J. Málek

  4. Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Cs. Legii sq. 565, Pardubice 532 10, Czech Republic

    P. Cicmanec

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  1. P. Pustková
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  2. J. Shánelová
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  3. J. Málek
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  4. P. Cicmanec
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Pustková, P., Shánelová, J., Málek, J. et al. Relaxation behavior of selenium based glasses. J Therm Anal Calorim 80, 643–647 (2005). https://doi.org/10.1007/s10973-005-0707-5

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  • DOI: https://doi.org/10.1007/s10973-005-0707-5

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