抄録
Poling condition and heat resisting properties were discussed for leadzirconate titanate (PZT) cearmics.High temperature poling which was carridout by applying constant current from above Curie temperature to below Curietemperature in air gave superior heat resisting properties to normal polingmethod in silicon oil bath. Moreover, distinct domain structures were observedin high temperature poling sample. From these results, it was concludedthat high temperature poling resulted in stable domain structures, and consequently brought about superior heat resisting properties.
