Low-Temperature Mixed Sintering Of Pb(Zr1-Xtix)O-3-Pb(Zn1/3nb2/3)O-3 Ceramics And Their Pyroelectric Properties

Low-temperature mixed sintering in the preparation process of Pb(Zr1-xTix)O-3-Pb(Zn1/3Nb2/3)O-3 ceramics has been examined. Dense composite ceramics having z = 0.02, 0.03 and 0.04 with fine grains were obtained at firing temperatures from 900 degrees C to 950 degrees C by adding PbO as a lower-melting-point sintering aid. The pyroelectric coefficient of this mixed sintered ceramic fired at 900 degrees C was above 60 nC/(cm(2) . K) in the temperature range of 15 degrees C to 50 degrees C. These low-temperature mixed sintering pyroelectric materials are very promising for use in the fabrication of highly sensitive infrared detectors.