The conductivity of the 4AgI-Ag3VO4 system was studied and was compared with that of the corresponding glass system. It was found that the material was in a glassy form at temperatures of up to 60C and had a higher conductivity (0.006S/cm) at room temperature than that (0.0053S/cm) of the polycrystalline form. At temperatures greater than 60C, the conductivity slowly decreased and remained constant. Further increases in the temperature increased the conductivity. After cooling to room temperature and re-heating, the conductivity versus temperature plot followed a different path. The material appeared to remain in the glassy state up to about 60C. It then changed to a polycrystalline form. The room temperature conductivity (0.00328S/cm) of this form was less than that (0.0053S/cm) of material which had been prepared in the polycrystalline form. The conductivities at 300K, of glassy and polycrystalline samples were of the order of 0.006 and 0.0053S/cm, respectively.

K.Hariharan, C.V.Tomy, R.Kaushik: Journal of Materials Science Letters, 1985, 4[11], 1379-82