Abstract
Releasing constrains of the chemical bonds in the glass require a transformation of the thermal energy into the mechanical energy. By equating the mechanical and thermal energies, an equation could be obtained to calculate the glass transition temperature T g . The obtained equation shows that the ratios of the chemical components, the length of the bonds, and the stretching force constant are the most effective parameters for determining the value of T g . The obtained equation is applied successfully to haloborate and halomolybdate glasses.
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References
Elliott, S.R., Physics of Amorphous Materials, London: Longman, 1983.
Hager, I. and El-Hofy, M., Investigation of Spectral Absorption and Elastic Moduli of Lithium Haloborate Glasses, Phys. Status Solidi A, 2003, vol. 198, no. 1, pp. 7–17.
El-Hofy, M. and Hager, I., Ionic Conductivity in Lithium Haloborate Glasses, Phys. Status Solidi A, 2003, vol. 199, no. 3, pp. 448–456.
Ell-Mallawany, R., Hager, L., and Poulain, M., Thermal Properties of New Molybdenum Oxyfluoride Glasses, J. Mater. Sci., 2002, vol. 37, pp. 3291–3297.
El-Hofy, M. and Hager, I., Ionic Conductivity in MoO3-BaF2-Agl-LiF Glasses, Phys. Status Solidi A, 2000, vol. 182, pp. 697–707.
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El-Hofy, M. Theoretical model for calculation of the glass transition temperature utilizing the chemical composition. Glass Phys Chem 33, 68–71 (2007). https://doi.org/10.1134/S1087659607010105
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DOI: https://doi.org/10.1134/S1087659607010105