EVALUATION OF THE RELAXATION INTENSITY FROM DIELECTRIC LOSS DATA

Empirical formulae for evaluating the dielectric relaxation intensity or the magnitude of dielectric dispersion from dielectric loss data in a limited range of frequency around the relaxation frequency are presented for the Cole-Cole, Davidson-Cole, and Williams-Watts type of relaxation. The relaxation intensity Δε{lunate} is expressed in terms of ε{lunate}″M the dielectric loss maximum and W the frequency separation for a half, two thirds, or three quarters of ε{lunate}″M in the form {A figure is presented} where numerical constants C1, C2, and C3 are given for the respective types of relaxation. The formulae tested with some experimental data give the sufficient accuracy in evaluation of the relaxation intensity. © 1979.