DIELECTRIC-CONSTANT FOR BINARY PIEZOELECTRIC 0-3 COMPOSITES

In this article an analytic expression is presented for the dielectric constant of a binary piezoelectric 0-3 composite by modifying the well known Kerner expression [Proc. Phys. Soc. London Sec. B 69, 802 (1956)] to include interactions. The developed expression is a function of the constituent dielectric constants and their volume fractions only and compares very favorably with available experimental data for piezoelectric ceramic inclusions in a dielectric continuum having widely differing dielectric constants.