CORRELATIONS: ELEMENTAL COMPOSITION - PHASE FILLING - STRUCTURE OF GRAIN - MACRO-RESPONSES IN HARD FERROELECTRIC PIEZOCERAMICS ON THE BASE OF THE PZT-SYSTEM
The structure, microstructure, dielectric and piezoelectric properties of two ferroelectric materials based on the PbTiO3-PbZrO3 (PZT) -RCP-13, PKR-80 system, obtained by conventional ceramic technology are studied. Correlation relations between elemental composition, phase filling, structure of grain, and macro-responses are revealed in them. It is shown that it is possible to fabricate the developed hard ferroelectric materials without using the hot pressing method with parameters that allow them to be used in frequency-selective devices as filters with variable bandwidth.