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Description:
high efficiencylarge amplitude
low heat
stable output unaffected by variations in load
HighTemperature Piezoelectric Ceramic
Typical values of high temperaturepiezoelectric ceramic
materials
| Properties | Materials | |||||
| PT | K81 | K85 | PNA | HT | ||
| Dielectricconstants | E33T/E0 | 160 | 350 | 650 | 230 | 134 |
| Dissipation factor (%) | tanδ | 0.8 | 0.6 | 1.7 | 0.7 | 0.1 |
| CouplingCoefficients | Kp | 0.08 | 0.29 | 0.28 | 0.04 | 0.05 |
| Kt | 0.44 | 0.3 | 0.4 | 0.41 | 0.3 | |
| Piezoelectric Charge Constants (pC/N) | d33 | 48 | 85 | 160 | 74 | 18 |
| Piezoelectric voltage constants(X10-3Vm/N) | g33 | 33.8 | 27.2 | 29 | 36.4 | 15.2 |
| Mechanical Q | Qm | 50 | 15 | 30 | 16 | 7800 |
| Frequency contents(Hz.M) | Nt | 2100 | 1720 | 1700 | 1600 | 2590 |
| Poison''s ratio | qE | 0.28 | 0.41 | 0.41 | 0.19 | 0.24 |
| Curie temperature(°C) | Tc | 450 | 400 | 405 | 560 | 850 |
| Density (g/cm3) | r | 7.7 | 5.4 | 5.5 | 6 | 7.2 |
Above materials are used as design reference only, standardtolerances are approximately
±20%.
Material properties are measured based on the standard IEEEand DOD definitions
and measuring techniques.
All data here represent nominal characteristics (20 /-1 oC) 72hours after polarization.
Cutstomer Design
Other type or size piezo electric ceramic element could be designedas your demand. Piezo ignitors and push button ignitor mechanismsare also available for your specific requirements , it’s also couldassembly in our facotory.
High Temperature Piezoelectric Ceramic
