Piezoelectric compositions of the formula
Pb.sub.(1-z)M.sub.z(Mg.sub.1/3Nb.sub.2/3).sub.x(Zr.sub.yTi.sub.1-y).sub.1-
-xO.sub.3 where M can be either Sr or Ba or both, x is between about 0.35
and about 0.40, y is between about 0.36 and about 0.42, and z is between
about 0.04 and about 0.08. The piezoelectric ceramic is provided as a
composite perovskite structure. Additional materials or dopants can be
added to the piezoelectric ceramic of the present invention. Example of
dopants that can be added to the piezoelectric ceramic include, but are
not limited to: MnO.sub.2, Ni.sub.2O.sub.3, TeO.sub.3, TeO2, MoO.sub.3,
Nb.sub.2O.sub.5, Ta.sub.2O.sub.5, CoCO.sub.3, and Y.sub.2O.sub.3. The
piezoelectric ceramics of the present invention can be used to fabricate
piezoelectric elements for a wide variety of devices that can be
fabricated to exhibit high power applications including miniaturized
displacement elements, buzzers, transducers, ultrasonic sensors and
ultrasonic generators, and the like.