Abstract
A model is proposed that makes it possible to calculate the temperature dependence of the microhardness of glass over the entire temperature range from the softening temperature to absolute zero. The calculation uses the temperature dependence of the glass enthalpy and the value of its microhardness at the glass transition temperature. The proposed model is tested on the example of glassy selenium. For this, the temperature dependence of the microhardness of selenium on the softening temperature up to 100 K, which is 50 K below its Debye temperature, is measured. Thus, a relationship is established between the strength and thermodynamic properties of glass.
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Funding
This study was supported by the Russian Foundation for Basic Research, grant no. 20-03-00185, on the 300th anniversary of the founding of St. Petersburg State University.
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Wang, S., Tver’yanovich, Y.S. Relationship of Temperature Dependences of Microhardness and Enthalpy of Glass on the Example of Selenium. Glass Phys Chem 49, 336–339 (2023). https://doi.org/10.1134/S1087659623600266
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DOI: https://doi.org/10.1134/S1087659623600266