2A-1
Transport Properties of Silver Halide-Silver Carbonate Mixtures II, T. Usuki (Yamagata Univ.) et al.

The present study investigated the phenomena of developing fast ionic conduction at room temperature through mechanical milling and heat treatments in AgI-Ag₂CO₃ mixtures. It was demonstrated that fast ionic conduction appeared and remained at room temperature in higher AgI compositions (70-90 mol%), with the system showing the highest conductivity of 0.1 S cm^-1 at 80 mol% AgI. Crystalline phases, probably assigned to the metastable Ag⁺ ionic conductor Ag₁₇(CO₃)₃I₁₁, and amorphous-like phases were formed. It was also suggested that the environmental structure around mobile Ag ions is strongly related to the improvement of ionic migration in the present systems.