Glass Physics and Chemistry. Vol. 45, No. 3, Pages 191-194, 2019

O. V. Yanush^a, P. A. Onushchenko^a, and G. A. Sycheva^a^,*
Translated by D. Marinin

^aGrebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, 199034 Russia

Abstract—X-ray spectra of glass of the sodium-borate system are obtained by the method of X-ray diffractometry. Using the proposed processing of these spectra, the smallest elements of the sodium–borate glass structure (constant stoichiometry groups, CSGs), which unambiguously determine their properties, are determined. The method for determining the smallest elements of the glass structure consists of comparing the glass contours with the known contour of a glass of a stoichiometric composition.

Keywords: Na₂O–B₂O₃ system, constant stoichiometry groups, X-ray diffractometry

Constant Composition Groups in Glass of Sodium–Borate Systems According to the Data of X-Ray Diffractometry