Production of a piezo-ceramic material used in the production of a piezo-ceramic multiple layered actuator comprises preparing a piezo-ceramic starting composition of the material and heat treating

摘要

Production of a piezo-ceramic material comprises preparing a piezo-ceramic starting composition of the material and heat treating. An independent claim is also included for a piezo-ceramic material comprising a binary mixed system made from an alkaline earth perowskite ABO 3 and a bismuth oxide BiMO 3 (where A = alkaline earth metal; B = group IVa and/or IVb element; and M = Sc, Yb or In.).