Dielectric and calorimetric studies of PLZT-P(VDF/TrFE) ceramics-copolymer composite

Dielectric dynamics in PLZT-P(VDF/TrFE) ceramics-copolymer composite has been studied by measurements of the temperature and frequency-dependent linear and third-order nonlinear dielectric constants. A paraelectric-to-ferroelectric phase transition in the crystalline region and a dielectric relaxation, which is a dynamic manifestation of the glassy-to-rubbery state transition in the amorphous phase of the system, were detected. The nature of the paraelectric-to-ferroelectric phase transition has been studied in detail by high-resolution nonlinear dielectric and calorimetric measurements. Results are compared to data obtained in P(VDF/TrFE) copolymer.