| 摘要 |
The invention relates to piezoelectric ceramic materials based on the system Pb(Zr,Ti)O<SUB>3</SUB>, i.e. solid solutions of lead zirconate PbTO<SUB>3</SUB>, characterized by having very good dielectric and electromechanical properties that can be adopted for different uses by modifying the composition. The piezoelectric ceramic materials based on the system Pb(Zr,Ti)O<SUB>3 </SUB>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 A<SUP>2+</SUP>B<SUP>4+</SUP>O<SUB>3</SUB><SUP>2-</SUP>, which are characterized by a substitution of heterovalent acceptor and donator ions at Zr/Ti sites. |
