N. A. Babitskii, V. P. Zhereb, and T. V. Bermeshev
Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041 Russia
e-mail: irbis_btv@mail.ru
Received June 16, 2014
Abstract—The characteristic properties of relaxation processes for 55Bi2O3 
45B2O3 glass were described.
The pattern of changes of the vitrification temperature (Tg) is found to be quasi-periodic; the value of the endot-
hermic effect near Tg () and the difference between the softening point and the vitrification temperature (Tm
– Tg) were determined. The temperature-time parameters of the transition from quasi-periodic to the continuous
change of the properties were determined and an explanation of such behavior of the system was offered.
Keywords: 55Bi2O3 45B2O3 glass, thermal behaviour, Tg, relaxation
DOI: 10.1134/S1087659616020024
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