| 摘要 |
A piezoelectric ceramic composition firable at a reduced sintering temperature is provided. The main composition is expressed with the general formula: [(Pb1-m-n-pSrmBanCdp)(ZrxTi1-x)1-k(BiaMnb)k]O3+yBi2O3+z(Fluorine Compound) where 0.00<=m<0.15, 0.00 <=n<0.15, 0.00 <(m+n)<0.21, 0.00 <p<0.04, 0.50 <=x<=0.56, 0.00<a<=1.00, 0.00<b<=1.00, 0.00<k<0.04, 0.00 <=y<=1.00 (in weight %), 0.00<=z<=1.00 (in weight %) and fluorine compound is LiF or MgF2. The ceramic material of the invention can be advantageously used in multilayered piezoelectric ceramic devices, in piezoelectric ceramic transformers, in piezoelectric ceramic actuators or in piezoelectric ceramic transducers.
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