from the Chemical Composition of Glasses
in the R2O(RO)
Al2O3
B2O3 (R = Li, Na, Ca, and Ba) System
A. I. Priven
OOO Scite, Srednii pr. 86, St. Petersburg, 199106 Russia
Received August 5, 2002
Abstract—The regularities of the influence of the glass composition on the structural linear expansion coeffi-
cient in the glass transition range are analyzed using the published data obtained in systematic experimental
investigations of glasses in the R2O(RO)–Al2O3–B2O3 (R = Li, Na, Ca, and Ba) system. A method is proposed
for calculating the structural linear expansion coefficients of these glasses from the chemical composition with
a mean relative error of ~10%. The possibilities of extending the composition range covered by the calculation
are considered.
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