In this study, in order to develop relaxor ferroelectric ceramics for refrigeration device application with large electrocaloric effect, PLZT(8/65/35) composition was fabricated using conventional solid-state method. The Curi temperature of this composition PLZT ceramics was 230℃, and the P-E hysteresis loops of the PLZT ceramics as a fuction of temperature became slim by degrees with higher temperatures. The maximum value of .T of 0.243°C in ambient temperature of 215°C with 30 kV/cm was appeared. It is considered that PLZT ceramics possess the possibility of refrigeration device application.
