Transport Processes in the PbF₂PbO SiO₂ Glasses

I. A. Sokolov*, I. V. Murin**, H.-D. Wiemhöfer***, and A. A. Pronkin****

* Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,
ul. Odoevskogo 24/2, St. Petersburg, 199155 Russia
** St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, Petrodvorets, 198904 Russia
*** Münster University, Münster, 48149 Germany
**** St. Petersburg State Technological Institute (Technical University), Moskovskii pr. 26, St. Petersburg, 198013 Russia

Abstract—The concentration dependence of electric conductivity of glasses in the PbF₂–PbO SiO₂ system is
studied in the temperature range 25–250°C. The true transport numbers of fluorine ions are determined as a
function of concentration. The data obtained are interpreted in terms of the microinhomogeneous glass structure
arising from the selective interaction between the components during the glass synthesis.

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