Claims
- 1. A piezoelectric ceramic composition comprising:Pb[(Sb1/2Nb1/2)x(Zr0.495Ti0.505)1−x] O3+yPbO+zMnO, where x is in a range of 0.01-0.05, y is in a range of 0.3-0.6 wt %, and z is in a range of 0.7 wt % or less.
- 2. The piezoelectric ceramic composition as claimed in claim 1, having a dielectric constant of 1,320 or more, an electromechanical factor of 0.520 or more, and a mechanical quality factor of 1,440 or more .
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-23902 |
May 2000 |
KR |
|
Parent Case Info
This application is a Divisional of application Ser. No. 09/723,670 filed Dec. 5, 2000.
Foreign Referenced Citations (2)
Number |
Date |
Country |
59-57485 |
Apr 1984 |
JP |
09-301769 |
Nov 1997 |
JP |
Non-Patent Literature Citations (1)
Entry |
H. Ohuchi et al, Electric Properties of Pb(Sb1/2Nb1/2) O3˜ PbTiO3- PbZrO3 Ceramics Modified with Certain Additives (Journal of Applied Physics), vol. 34 (1995) pp. 5298-5302 no month. |