Domain structure of ferroelectric ceramics

PZT ceramics were statically and dynamically evaluated to examine the relationship between domain structures and electrical properties. We investigated the domain structures of tetragonal, M.P.B. and rhombohedral PZT ceramics at various poling fields to measure the poling held dependence of the crystal orientations and electrical properties as a statical evaluation. Furthermore, responses to repeated voltage pulses applied to the ceramics were measured by a high voltage test system as a dynamical evaluation. Through these evaluations, we could clarify the domain behavior for the 90 degrees (71 degrees or 109 degrees) domain rotation, switching and clamping of 180 degrees domain, and transient phenomena on the domain orientation. (C) 2000 Elsevier Science Ltd and Techna S.r.l. All rights reserved.