Impact of fly-ash (silica) on amorphous phase formation ain NaNO3-Sr(NO3)2 composite solid electrolytes

In the current research, various weight percentages of flyash were incorporated into a mixed system of 85.32% NaNO3 and 14.68% Sr(NO3)2. The system was analyzed using the studies of conductivity, dielectric and electric modulus. An increase in DC conductivity was observed with the addition of flyash, peaking at 10% by weight. Beyond this concentration, the conductivity began to decrease. This increase in conductivity is attributed to the formation of an amorphous phase within the mixed sytem. XRD, FTIR, SEM, and DSC analyses of the flyash dispersed systems indicated the formation of an amorphous phase. The amorphous phase may be due to the surface interaction between fly-ash(silica)and phase of mixed system. The AC conductivity, which depends on frequency, adheres to universal power law. Power law parameter were determined.