Piezoelectric single-crystal PMN-PT/PIN-PMN-PT
TRS Technologies (the U.S.) joined Tayca Group in 2018, and they produce single crystals in the U.S. The production of single crystals at Tayca (Japan) also has been started in 2022. By manufacturing at two bases in both the U.S. and Japan, we will be able to establish a stable supply and develop products closer to our customers.
Research and development is conducted at both bases to innovate the field of piezoelectric elements.
Full Property sheet for piezoelectric single crystal PMN-PT/PIN-PMN-PT
| Item | Phase transition temperature | Curie temperature | Relative permittivity | Dielectric Loss Factor | Coercive electric field | Piezoelectric constant | Coupling Coefficient | Frequency Constant | Mechanical Quality Factor |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Composition |
Symbol Material |
Trt(˚C) |
Tc(˚C) |
K33T |
Loss (%) |
Ec(kV/cm) |
d33(pm/V) |
k33 |
kt |
N33(Hz∙m) |
Nt(Hz∙m) |
Qm |
| PMN-PT | X2B | 85-98 | >142 | 5000-7500 | ≤0.6 | 1.9-2.5 | 1500-2300 | 0.91-0.95 | 0.55-0.59 | 599 | 2002 | 80 |
| PIN-PMN-PT | X4B | 110-130 | 4000-6000 | ≤0.6 | 4.5-6 | 1200-1900 | 0.89-0.95 | 0.54-0.58 | 150 | |||
① Features of PMN-PT (X2B)
- Extremely high electromechanical coupling coefficient and piezoelectric constant
- High relative permittivity
- High transmission/reception sensitivity and wide bandwidth
② Features of PIN-PMN-PT(X4B)
Improved version of PMN-PT that achieves high Trt and coercive electric field, in addition to high electromechanical coupling coefficient, piezoelectric constant, and relative permittivity.
Comparison of PZT and piezoelectric single crystals
| PZT | Single Crystal | |
|---|---|---|
| Relative permittivity | 〇 | ◎ |
| Coupling coefficient | 〇 | ◎ |
| Curie temperature | 〇-◎ | △-〇 |
| Coercive electric field | 〇-◎ | △-〇 |
| Workability | ◎ | 〇 |
*Has a surperior coupling coefficient (single crystal k33: 95%, piezoelectric ceramic k33: 71%) compared to that of conventional piezoelectric ceramic.
Production in two sites
Our domestic plant in Japan has started operation in 2022, which enables us to supply from 2 bases, Japan and the U.S., to our customers across the world.
A stable supply will be ensured by having multiple bases.
Plant for single crystals in Japan
Manufacturer: Tayca Corporation
Plant for single crystals in the U.S.
Manufacturer: TRS Technologies, Inc.
