Parameters of mass transfer of hydrogen-containing species and specific features of their localization in alkali-borate glasses

The conditions of stabilization and parameters of mass transfer of hydrogen -containing species in alkali-borate glasses of composition Me2O(Me = Li, N a, K, Rb)-B2O3 were studied using the IR spectrometry and radiotracer metho ds. it was revealed that the characteristics of the H-bonds in these glasse s depend on the physicochemical properties of the alkali ion, it was also s hown that, in the bulk of the glass, hydroxyl ions are stabilized as indivi dual entities, in contrast to those at the surface. It was found that the m ass transfer of hydrogen-containing particles is a diffusion-controlled pro cess. The diffusion parameters for all the studied glasses were determined. The effect of the physicochemical properties of the glass-forming element, in particular, its proton-acceptor ability, on the parameters of mass tran sfer was discussed.