Relationship of Temperature Dependences of Microhardness and Enthalpy of Glass on the Example of Selenium

Shunbo Wang; Ванг Шунбо; Yu. S. Tver’yanovich; Тверьянович Ю. С.

doi:10.31857/S0132665123600012

Relationship of Temperature Dependences of Microhardness and Enthalpy of Glass on the Example of Selenium

Authors: Wang S.¹, Tver’yanovich Y.S.²
Affiliations:
1. School of Mechanical and Aerospace Engineering, Jilin University, 130025, Changchun, China
2. Institute of Chemistry, St. Petersburg State University, 198504, St. Petersburg, Russia
Issue: Vol 49, No 4 (2023)
Pages: 395-400
Section: Articles
URL: https://rjmseer.com/0132-6651/article/view/663312
DOI: https://doi.org/10.31857/S0132665123600012
EDN: https://elibrary.ru/SGSDUO
ID: 663312

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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.

Keywords

glasses, microhardness, calculation of microhardness, selenium, temperature dependence of microhardness, relationship between microhardness and heat capacity

About the authors

Shunbo Wang

School of Mechanical and Aerospace Engineering, Jilin University, 130025, Changchun, China

Email: tys@bk.ru
Китай, 130025, Чанчунь

Yu. S. Tver’yanovich

Institute of Chemistry, St. Petersburg State University, 198504, St. Petersburg, Russia

Author for correspondence.
Email: tys@bk.ru
Россия, 198504, Университетский пр., 26, Санкт-Петербург

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