Abstract
The temperature dependences of the density and intensity of SAXRS of a variety of sodium borosilicate glasses in equilibrium states below vitrification temperature are obtained. The existence of a transition of the investigated supercooled liquids in a solid noncrystalline state was discovered that is similar to the one observed in the study of vitreous boron oxide and alkali-borate glasses. The temperature of the transition of supercooled liquids of the investigated compositions to a solid noncrystalline state is about 50°C below the vitrification temperatures determined by the SAXRS data. Thus, the transition occurs at a viscosity of 1014 P in borate and sodium borosilicate glasses.
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Original Russian Text © V.V. Golubkov, P.A. Onushchenko, 2013, published in Fizika i Khimiya Stekla.
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Golubkov, V.V., Onushchenko, P.A. Temperature dependences of density of sodium borosilicate glasses in equilibrium states at temperatures below a vitrification temperature. Glass Phys Chem 39, 11–18 (2013). https://doi.org/10.1134/S1087659613010070
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DOI: https://doi.org/10.1134/S1087659613010070