Enhancement of Piezoelectric and Dielectric Properties and Macroscopic Relaxation of Charge and Field Response in 0–3 Ceramic-Pore Composites: Theory and Experiment

Resumo

In this work, we have theoretically and experimentally described the dielectric and piezoelectric properties of ceramic-based lead zirconate–titanate composites that have a 0–3 bond. Based on the proposed model, the frequency dependences of the dielectric and piezoelectric response have been determined theoretically and experimentally. The influence of the Maxwell–Wagner relaxation and the effective parameter approximation on the physical properties of disordered objects of statistical mixture have been studied. The distribution functions of the times of intercomponent relaxation in the piezoceramic–pores composite system and the concentration dependences of the effective field responses have been determined. The theoretical and experimental results obtained have been compared.