Lead titanate base piezoelectric ceramic materials.

摘要

With lead titanate based piezoelectric ceramic materials wherein the composition can be represented by (Pb1-(3/2)xAx) (Ti1-yBy)O3 wherein A represents one or more elements selected from among La, Sm, Nd, Sr and Ca, B represents one or more elements selected from among Mn, Ni and Cr, and 0.02 </= x </= 0.06 and 0.001 </= y </= 0.007, the Curie temperature is high at 495 DEG C, there is no pressure - electric charge output hysteresis, and the temperature stability is excellent (less than 1100 ppm/ DEG C).