Piezo ceramics specification
Standard product
The following standard piezo ceramics are currently available:
Download Noliac ceramics datasheet (pdf)
| Propert. | Symb. & unit | NCE40 | NCE41 | NCE46 * | NCE51 | NCE53 | NCE55 | NCE57 * | NCE59 * | NCE80 |
| DIELECTRIC PROPERTIES (tolerances +/- 10%) | ||||||||||
| Relative Dielectric Constant | eT33/e0 | 1250 | 1350 | 1300 | 1850 | 1600 | 5000 | 1800 | 2900 | 1050 |
| Dielectric Loss Factor | tg d [10-4] | 25 | 40 | 30 | 190 | 130 | 220 | 170 | 190 | 20 |
| Dielectric Loss Factor at 400V/mm | tg d [10-4] | 140 | 200 | 100 | ||||||
| ELECTROMECHANICAL PROPERTIES (tolerances +/- 5%) | ||||||||||
|
Electro - mechanical Coupling Factors* |
kp | 0.58 | 0.57 | 0.57 | 0.65 | 0.56 | 0.62 | 0.59 | 0.64 | 0.55 |
| k31 | 0.34 | 0.33 | 0.33 | 0.37 | 0.32 | 0.39 | 0.33 | 0.37 | 0.3 | |
| k33 | 0.7 | 0.68 | 0.68 | 0.72 | 0.65 | 0.72 | 0.7 | 0.75 | 0.68 | |
| kt | 0.5 | 0.5 | 0.47 | 0.51 | 0.47 | 0.5 | 0.47 | 0.52 | 0.48 | |
| Piezoelectric Charge Constants | -d31 [10-12 C/N] | 140 | 130 | 130 | 195 | 150 | 260 | 170 | 240 | 100 |
| d33 [10-12 C/N] | 320 | 310 | 330 | 460 | 360 | 670 | 425 | 575 | 240 | |
| Piezoelectric Voltage Constants | -g31 [10-3 Vm/N] | 11 | 11 | 11 | 13 | 9 | 9 | 11 | 10 | 11 |
| g33 [10-3 Vm/N] | 27 | 25 | 28 | 27 | 23 | 19 | 27 | 23 | 27 | |
| Frequency Constants | NEp [m/s] | 2160 | 2280 | 2230 | 1940 | 2180 | 1970 | 2010 | 1970 | 2270 |
| NDt [m/s] | 1980 | 2000 | 2040 | 2010 | 2040 | 1990 | 1950 | 1960 | 2050 | |
| NE1 [m/s] | 1470 | 1600 | 1500 | 1400 | 1400 | 1410 | 1610 | |||
| ND3 [m/s] | 1340 | 1500 | 1800 | 1390 | 1500 | 1500 | 1500 | |||
| PHYSICAL PROPERTIES (tolerances +/- 5%) | ||||||||||
| Mechanical Quality Factor | Qm | 700 | 1400 | >1000 | 80 | 80 | 70 | 80 | 90 | 1000 |
| Density | p [103 kg/m3] | 7.75 | 7.9 | 7.7 | 7.8 | 7.6 | 8 | 7.7 | 7.45 | 7.8 |
| Elastic Compliances | sE11 [10-12 m2/N] | 13 | 13 | 13 | 16 | 16 | 17 | 17 | 17 | 11 |
| sE33 [10-12 m2/N] | 17 | 16 | 20 | 19 | 18 | 21 | 23 | 23 | 14 | |
| Curie Temp. | Tc [°C] | 325 | 290 | 330 | 340 | 340 | 170 | 350 | 235 | 305 |
*) For multilayer components only.
**) Measured in accordance with standard EN 50324.
The values listed above are for reference purposes only and cannot be applied unconditionally to other shapes and dimensions. Values vary depending on the components' actual shape, surface finish, shaping process and post-processing.
