PIEZOELECTRIC CERAMIC MATERIAL BASED ON LEAD ZIRCONATE TITANATE (PZT) HAVING THE CRYSTAL STRUCTURE OF PEROVSKITE

摘要

PROBLEM TO BE SOLVED: To provide piezoelectric ceramic materials based on the system Pb(Zr, Ti)O₃, i.e., lead zirconate titanate PbTiO₃, characterized by having very good dielectric and electromechanical properties that can be adapted for different uses by modifying the composition.;SOLUTION: The piezoelectric ceramic materials based on the system Pb(Zr, Ti)O₃ are modified in order to obtain a high level of piezoelectric activity. The invention provides piezoelectric ceramic materials based on lead zirconate titanate (PZT) having the crystal structure of perovskite with formula A²⁺B⁴⁺O₃^2-, which are characterized by a substitution of heterovalent acceptor and donator ions at Zr/Ti sites.;COPYRIGHT: (C)2011,JPO&INPIT