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Piezoelectric Ceramics
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• Feature
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- PZT4 Piezoelectric ceramics have a double behavior of receiving and transmitting, with higher sensitivity
and lower dielectric loss.
- PZT5 Piezoelectric ceramics have higher electro-mechanical coupling coefficient, the moderate dielectric constant and higher sensitivity.
- PZT8 Piezoelectric ceramics of high power transmission type have good piezoelectric property, high
mechanical strength, high coercive field, low dielectric loss in strong fields.
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• Processing Size
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PZT-4 |
PZT-5 |
PZT-8 |
| » Piezo ceramic Discs |
Diameter |
3-100 |
3-100 |
3-100 |
| Thickness |
0.3-10 |
0.25-15 |
0.4-8 |
| » Piezo ceramic Rings |
Outside diameter |
3-100 |
3-100 |
3-100 |
| Inside diameter |
≥ 2 |
≥ 2 |
≥ 2 |
| Thickness |
0.3-10 |
0.25-15 |
0.4-8 |
| » Piezo ceramic Tubes |
Outside diameter |
3-108 |
3-108 |
3-105 |
| Inside diameter |
≥ 2 |
≥ 2 |
≥2 |
| Length |
≤50 |
≤50 |
≤50 |
» Piezo ceramic Plates
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Length |
≤ 50 |
≤50 |
≤50 |
| Width |
≥ 1 |
≥ 1 |
≥ 1 |
| Thickness |
0.3-10 |
0.25-15 |
0.3-8 |
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※ We can also design and process irregularly shaped piezoelectric ceramics.
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• Performance
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Symbol |
PZT-4W |
PZT-5L |
PZT-5NL |
PZT-5NM |
PZT-8C |
| Electro-mechanical coupling coefficient |
Kp |
0.60 |
0.68 |
0.62 |
0.65 |
0.52 |
| K31 |
0.33 |
0.39 |
0.36 |
0.37 |
0.30 |
| K33 |
0.68 |
0.73 |
0.70 |
0.71 |
0.60 |
| K15 |
0.66 |
0.72 |
0.68 |
0.70 |
0.57 |
| Kt |
0.50 |
0.55 |
0.50 |
0.53 |
0.45 |
| Relative free dielectric constants |
εTr3 |
1400 |
1700 |
2100 |
3800 |
1000 |
| εTr1 |
1550 |
1730 |
2250 |
4100 |
1300 |
| Piezoelectric changing constant
（10-12C/N） |
D31 |
160 |
195 |
200 |
270 |
110 |
| D33 |
350 |
450 |
500 |
550 |
220 |
| D15 |
500 |
650 |
680 |
700 |
350 |
| Elasticity and pliancy constant
(10-12m2/N) |
SE11 |
12.6 |
17.6 |
16.7 |
18.2 |
11.1 |
| SE33 |
15.8 |
19.2 |
21.5 |
23.6 |
14.9 |
| Mechanical quality constant |
Qm |
300 |
50 |
55 |
70 |
1000 |
Frequency constant
（Hz.m） |
Nφ |
2100 |
2000 |
2000 |
2000 |
2300 |
| Nt |
2000 |
2000 |
2000 |
2100 |
2100 |
| Density(G/CM3) |
ρ |
7.6 |
7.6 |
7.6 |
7.6 |
7.6 |
| Dielectric loss |
tgδ |
0.005 |
0.02 |
0.02 |
0.02 |
0.003 |
| Curie temperature(℃) |
Tc |
300 |
320 |
320 |
280 |
300 |
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※ The above data is only for reference, the exact data of piezoelectric ceramics subject to the actual test.
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