Microstructural evolution resulting from ionic diffusion in an electric field

The effects of an electric field on the microstructure of CAS (CaO·Al2O3·SiO2) has been studied. The structures of CAS glasses are discussed by magic angle spinning-nuclear magnetic resonance (MAS-NMR) analysis. It was discovered that an electric field promotes the process of phase separation in CAS glasses, and leads to a ladder-shaped distribution of the droplet phase. On the basis of this discussion, the reason of microstructural evolution resulting from ionic diffusion in an electric field has been proposed.