| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition which can be sintered at ≤1,200°C, and, when applied to a piezoelectric element, can improve the temperature properties of the resonant frequency thereof, and can also impart excellent oscillation properties thereto. <P>SOLUTION: The piezoelectric ceramic composition comprises the main component expressed by the general formula: äPb<SB>1-x-y</SB>(La<SB>a</SB>Nd<SB>1-a</SB>)<SB>x</SB>}ä(Ni<SB>1/3</SB>Nb<SB>2/3</SB>)<SB>z</SB>Ti<SB>1-z</SB>}O<SB>3</SB>(wherein, 0.05≤x≤0.15, -0.075≤y≤0.075, 0≤a≤1, and 0.02≤z≤0.10 are satisfied), and an assistant component consisting of the oxide of Mn. The assistant component is incorporated by 0.05 to 2.0 pts.wt. expressed in terms of MnO<SB>2</SB>to 100 pts.wt. of the main component. <P>COPYRIGHT: (C)2004,JPO |
