Diffusion of Sodium Ions and Electric Conductivity in Glassy
and Crystallized Na₂O Al₂O₃ 2SiO₂

Z. G. Tyurnina, N. G. Tyurnina, and S. I. Sviridov

Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034
Russia

e-mail: sviridov@isc.nw.ru

Received December 16, 2014

Abstract—The specific electric conductivity of glassy and crystallized samples of composition Na₂O · Al₂O₃ · 2SiO₂
has been determined. Diffusion coefficients of sodium ions have been determined by the sectioning method
with the measurement of the residual activity ²²Na isotope. The parameters of the temperature dependence and
values of the diffusion correlation factor have been calculated. A significant difference of the diffusion mobility
of sodium ions in the glassy and crystallized samples has been found.

Keywords: diffusion, electric conductivity, glass

DOI: 10.1134/S1087659615060188

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.