Experimental data indicate the absence of a rectilinear relationship between log sigma electrical conductance and log eta viscosity. This correlation holds good in the high temperature regions. The values of n and C constants in Littleton equation log eta n log sigma C for different glasses are presented. Glasses become inhomogeneous in anomalous temperature regions. At firing temperature regions the correlation between sigma and eta develop an exponential function.
Edited trans. of Stekloobraznoe Sostoyanie (USSR) v5 n1 p209-213 1970, by Paul J. Reiff, Jr.