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POLYMER-POLYMORPHOID NATURE OF THE GLASS AGING PROCESS

https://doi.org/10.17073/1609-3577-2014-1-17-23

Abstract

Based on the concept of polymeric−polymorphous structure of glass and glassforming liquid (Minaev, 1987) experimental data have been analyzed revealing the nature of glass aging. We show that the glass forming substance is a copolymer consisting of structural nano-fragments (polymorphoids) in different polymorphous modifications (PM) of the material having no translational symmetry (long-range order). The study revealed that the process and degree of glass aging influences the properties of glasses, including a change in enthalpy, manifested in the exothermic and endothermic effects observed in thermograms of differential scanning calorimetry of heated and cooled glasses. We have shown that the physicochemical essence of aging is the transformation of polymorphoids from high−temperature PM (HTPM) into low−temperature PM (LTPM) which results, under certain conditions, in LTPM crystallization.

About the Authors

V. S. Minaev
National Research University of Electronic Technology, 1244698, Russia, Moscow, Zelenograd, proezd 4806, building 5
Russian Federation
Chief Scientific Officer, Doctor of Science, Professor


N. M. Parfenov
The Moscow Aviation Institute (National Research University), 125993, Russia, Moscow, Volokolamsk highway, house 4
Russian Federation
Docent, Ph.D.


S. P. Timoshenkov
National Research University of Electronic Technology, 1244698, Russia, Moscow, Zelenograd, proezd 4806, building 5
Russian Federation
Head of Department, Doctor of Technical Sciences, Professor


V. V. Kalugin
National Research University of Electronic Technology, 1244698, Russia, Moscow, Zelenograd, proezd 4806, building 5
Russian Federation
Doctor of Technical Sciences, Professor


L. P. Batyunya
National Research University of Electronic Technology, 1244698, Russia, Moscow, Zelenograd, proezd 4806, building 5
Russian Federation
Head of the Department, Doctor of Technical Sciences, Professor


D. Z. Mukimov
National Research University of Electronic Technology, 1244698, Russia, Moscow, Zelenograd, proezd 4806, building 5
Russian Federation
Engineer


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For citations:


Minaev V.S., Parfenov N.M., Timoshenkov S.P., Kalugin V.V., Batyunya L.P., Mukimov D.Z. POLYMER-POLYMORPHOID NATURE OF THE GLASS AGING PROCESS. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering. 2014;(1):17-23. (In Russ.) https://doi.org/10.17073/1609-3577-2014-1-17-23

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