Water diffusion in silicate glasses: glass structure effect

Abstract

We discuss water diffusion in silicate glasses considering the glass structure and viscosity. Water and network modifier cations in silicate glass can change the glass structure and viscosity, and can affect the activation energy for molecular water diffusion. With taking the effect of glass structure into account, we conclude that a fundamental atomistic process for water diffusion in silicate glasses is likely to be the same irrespective of the glass chemistry.