Journal
GLASS PHYSICS AND CHEMISTRY
Volume 48, Issue 4, Pages 243-247Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1087659622040149
Keywords
glassy materials; microhardness; glass transition temperature; enthalpy of glass
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Funding
- Russian Foundation for Basic Research [20-03-00185]
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This work discusses the transition of glass to a softened state due to temperature and mechanical stresses. A model is proposed to describe the relationship between microhardness and temperature, using classical chalcogenide glass as an illustration. The important result is the establishment of the relationship between microhardness and enthalpy of glasses.
In this work, we have discussed the transition of glass to a softened (viscous) state as a result of simultaneous impacts of temperature and mechanical stresses. This approach allows describing the temperature dependence of the microhardness of glass below the glass transition temperature and substantiates the previously suggested functional relationship of these two parameters. As an illustration, the proposed model is applied to a classical chalcogenide glass, namely to glassy selenium and glasses based on glassy selenium. Important result lies in the fact that the relationship between the microhardness and enthalpy of glasses is established.
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