INVESTIGATION ON THE F-RL-F-RH PYROELECTRIC PHASE-TRANSITION BEHAVIOROF PZT MULTI-COMPOSITION FERROELECTRIC CERAMICS

The F-RL-F-RH pyroelectric phase transition behavior of Zr rich Nb dop ed PZT multi-composition ferroelectric ceramics with parallel configur ation (i.e., changing composition across the surface of the multi-comp osition sample) has been investigated. Adjusting the chemical composit ion and the mass of each component in the multi-composition ceramics, continuity of the multiple F-RL-F-RH phase transition behavior in a gi ven temperature window (with approximately constant pyroelectric curre nt) can be attained. In this paper different combination configuration s for five compositions (PZT 97/3 + 0.8, 0.9, 1.0, 1.15, 1.3 wt% Nb2O5 ) have been studied.