Compare Hard PZT Materials
Posted by Business Development Manager October 5th, 2016
Compare Hard PZT Materials
| Hard PZT |
| Symbols | Units | BM402 | BM800 | BM200 |
| Electrical | Navy Type I | Navy Type III | |
| Relative Dielectric Constant | KT33 | --- | 1350 | 1000 | 1080 |
| Dissipation Factor | Tan δ | % | 0.4 | 0.3 | 0.3 |
| Piezoelectric | |
| Coupling Factor | kp | --- | 0.60 | 0.50 | 0.60 |
| k31 | --- | 0.35 | 0.30 | 0.31 |
| k33 | --- | 0.71 | 0.64 | 0.64 |
| Charge Constant | d31 | 10-12 C/N | -135 | -85 | -100 |
| d33 | 10-12 C/N | 305 | 225 | 250 |
| Voltage Constant | g31 | 10-3 V·m/N | -10.8 | -10.5 | -10.0 |
| g33 | 10-3 V·m/N | 26 | 26 | 26 |
| Mechanical Quality Factor | QM | --- | 550 | 1000 | 1000 |
| Frequency Constants2 | Np | Hz·m | 2150 | 2350 | 2350 |
| N1 | Hz·m | 1640 | 1700 | 1770 |
| N4 | Hz·m | 1950 | 2000 | 1900 |
| Mechanical | |
| Compliance | SE11 | 10-12 m2/N | 12.0 | 11.0 | 10.8 |
| SE33 | 10-12 m2/N | 15.6 | 13.5 | 15.4 |
| Density | ρ | g/cm3 | 7.6 | 7.6 | 7.6 |
| Curie Temperature | Tc | oC | >300 | 325 | 330 |
| Ageing Characteristics3 (% change/time decade) | |
| Coupling Factor | kp | --- | -2.2 | -2.5 | -2.5 |
| Relative Dielectric Constant | KT33 | --- | -4.0 | -6.0 | -6.0 |
| Frequency Constant | N4 | Hz·m | 1.5 | 1.5 | 1.5 |
