A Comprehensive Study of the High Temperature Performance and Microstructure of Different High Tc Piezoelectric Ceramics

The expanding demand for piezoelectric devices working at elevated temperatures,particularly those for aerospace and automotive industries,has stimulated a great deal of research effort on high Cu-rie Temperature(T C)piezoelectric ceramics.The fabrication of this type of piezoelectric ceramics is

The expanding demand for piezoelectric devic- es working at elevated temperatures, particularly those for aerospace and automotive industries, has stimulated a great deal of research effort on high Cu-rie Temperature （To） piezoelectric ceramics. The fab- rication of this type of piezoelectric ceramics is also an important and difficult task in this field.