Crystallization and glass transition kinetics in Cu+ ion substituted Cux-Ag1 − xI-Ag2O-V2O5 superionic glasses

► For the first time composition dependence of activation energies of structural relaxation and crystallization is investigated for CuI substituted AgI-Ag2O-V2O5 superionic glasses. ► Avrami parameter calculated using various methods suggests surface nucleation regime. ► Good correlation is seen between the results obtained from differential scanning calorimetry and electrical conductivity - temperature cycles.