The electrical and structural characteristics of the pseudo-ternary system (Cu1-xAgxI)-45(Ag2O)-15(B2O3) were studied, where x ranged from 0.05 to 0.25. Conductivity measurements were performed by using the complex impedance method. The contribution made by ionic conductivity was determined by evaluating ionic transport numbers using Wagner’s method, and the corresponding Ag ionic transport numbers were deduced by using the EMF technique. The measurements indicated the formation of superionic materials with electrical conductivities of the order of 10-4 to 10-3S/cm at room temperature. Differential scanning calorimetry, X-ray diffraction and Fourier transform infra-red spectroscopic data indicated that the superionic solids consisted of glassy and crystalline phases. Thermoelectric power measurements also confirmed the existence of a positive charge on the conducting species.

Electrical Transport and Structural Properties of New Superionic Solids in the System (Cu,Ag)I-Ag2O-B2O3). S.A.Suthanthiraraj, S.Murugesan, P.Maruthamuthu: Solid State Ionics, 2001, 143[3-4], 413-23