Typical sample dimensions 9.51 × 4.83 mm2in surface area and1.58 mm in thickness were coated with conductive silver paint formetallic contacts. The dielectric constant of the sample was mea-sured for the applied frequency that varies from 100 Hz to 1 MHz atdifferent temperatures (40◦C, 60◦C, 80◦C). The observations weremade while cooling the sample. The dielectric constant εrwas cal-culated using the relation, εr = Ct ε0A (9)where ε0is the permittivity of the free space, C is the capacitance, t isthe thickness of the sample and A is the area of the cross section. Thedielectric constant has high values in the lower frequency regionand then it decreases with the applied log frequency as shown inFig. 10(a). The plot of the dielectric loss vs.