| 摘要 |
A piezoelectric ceramic material having the molar composition Pb(1+c)-x-(3/2a)-1/2(x.b)A1xA2a (Zry(1-x-b-x.z)Ti(1-y)(1-x.b-x.w))(B1bB2zB3w)xO3 is described where A1 is selected from the group Ca, Mg, Sr, Ba, or their mixtures; A2 is selected from the group of rare-earth elements or their mixtures; B1 is selected from the group Nb, Ta, or Sb or their mixtures; B2 is Cu or a mixture of Cu with at least one element selected from the group Zn, Ni, Co, or Fe, and B3 is Fe, where the following applies: 0.001<=a<=0.05; 0.05<=b<=0.90; 0<=c<=0.04; 0.005<=x<=0.03; 0.5<=y<=0.55; 0.05<=z<=0.90; 0<=w<=0.5. Furthermore, an electroceramic multilayer component is described having insulating layers containing such a material. Finally, two manufacturing methods are described for the ceramic material, the metal ions being used as powdered oxides and/or carbonates, mixed together, and calcined to form the ceramic material, or powdered ZrO2 and TiO2 is calcined to form ZryTi1-yO2 where 0.50<y<0.55, the ZryTi1-yO2 is processed to form a powder and mixed with powdered oxides and/or powdered carbonates of the additional metal ions, and this mixture is then calcined to form the ceramic material.
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