The conductivity of the solid electrolyte was determined at temperatures of between 100 and 293K. It was found that the product of conductivity and temperature could be described by the expression:

σT (SK/cm) = 6200 exp[-0.220(eV)/kT]

No jumps or discontinuities were observed in the conductivity plots, and it was concluded that the material did not undergo any phase transformations within the temperature range studied.

V.S.Shvetsov, V.F.Vybornov: Elektrokhimiya, 1983, 19[7], 942-4