Piezoelectric ceramic materials
42（Qm > 2000, low loss, Japanese technology and raw materials）
81＆82（134 °C – 100 thermal shock cycles with no performance degradation; withstands 7 kV per millimeter）
BT（Barium titanate piezoelectric ceramics）
51＆52＆53
56
57＆5L（Low-temperature sintering at 910 °C）
58
- Ultrasonic cleaning transducers
- Ultrasonic pulverization
- High-Intensity Focused Ultrasound (HIFU)
- High-frequency cleaning
(>1 MHz, semiconductor and panel cleaning) - Ultrasonic welding
- Ultrasonic machining
- Ultrasonic surgical scalpels
- Piezoelectric motors
- High-pressure air pumps
- Underwater acoustics
- Fish-finding sonar
- Ultrasonic cleaning transducers
- Piezoelectric stack actuators
- Multilayer piezoelectric components
81＆82（134 °C – 100 thermal shock cycles with no performance degradation; withstands 7 kV per millimeter）
- High-power metal welding
- Plastic welding
- High-Intensity Focused Ultrasound
- Ultrasonic surgical scalpels
BT（Barium titanate piezoelectric ceramics）
- Lead-free and environmentally friendly
- Aligned with EU policy trends
- Fish-finding sonar
- Lead-free medical nebulizer plates
51＆52＆53
- Sensors
- Ultrasonic water meter transducers
- Ultrasonic gas meter transducers
- Flow meters
- Distance-measuring and obstacle-avoidance sensors
56
- Actuators
- Loudspeakers
- High-sensitivity sensors
- Medical ultrasound
57＆5L（Low-temperature sintering at 910 °C）
- Actuators
- Loudspeakers
- 57 piezoelectric bimorphs, with a service life of up to 1 billion cycles, ensuring exceptional durability and reliability
58
- d33 > 1000
Low-acoustic-impedance piezoelectric materials
42p（Low acoustic impedance, PZT-4）
53p
57p
In the MHz range, ultrasonic transducers are widely used in medical imaging, probes, underwater inspection, and related applications.
Reduced matching difficulty in the MHz band.
The acoustic impedance of piezoelectric ceramics is significantly lowered, enabling better matching with low-impedance media such as water, tissue, and polymers. This reduces reflection and improves acoustic energy transmission efficiency, making high-frequency applications that were previously difficult to couple technically feasible.
In the MHz band, piezoelectric plates are prone to lateral-mode interference, which can lead to spectral impurity or blurred signals. Composite structures can absorb part of the lateral-mode energy, acting as a natural mechanical filter that helps improve main-mode purity and frequency response.
Low-acoustic-impedance piezoelectric ceramics, when used in composite configurations, can enhance overall mechanical strength and improve manufacturability while maintaining high-frequency response and good beam control. For example, in high-frequency medical ultrasound probes (20–40 MHz), such structures have been proven to outperform conventional monolithic ceramics.
Flexible electrical performance.
Key properties such as piezoelectric constants and acoustic impedance can be tuned.
Qm can be reduced to below 15, while dh reaches 140 at 20 MPa.
Geometry and polarization direction can be customized to customer designs.
High axial resolution is enabled by the low mechanical Q factor, delivering broadband performance and short-pulse output.
- High-power, high-sensitivity underwater acoustic detection
- Medical diagnostics
- High-Intensity Focused Ultrasound (HIFU)
53p
- Wideband hydrophones
- Lightweight accelerometers / shock sensors
- Ultra-low flow-rate measurement
- Barometric pressure sensors
57p
- Underwater communications
- Wideband side-scan / imaging sonar receiving arrays
- Seabed imaging
In the MHz range, ultrasonic transducers are widely used in medical imaging, probes, underwater inspection, and related applications.
Reduced matching difficulty in the MHz band.
The acoustic impedance of piezoelectric ceramics is significantly lowered, enabling better matching with low-impedance media such as water, tissue, and polymers. This reduces reflection and improves acoustic energy transmission efficiency, making high-frequency applications that were previously difficult to couple technically feasible.
In the MHz band, piezoelectric plates are prone to lateral-mode interference, which can lead to spectral impurity or blurred signals. Composite structures can absorb part of the lateral-mode energy, acting as a natural mechanical filter that helps improve main-mode purity and frequency response.
Low-acoustic-impedance piezoelectric ceramics, when used in composite configurations, can enhance overall mechanical strength and improve manufacturability while maintaining high-frequency response and good beam control. For example, in high-frequency medical ultrasound probes (20–40 MHz), such structures have been proven to outperform conventional monolithic ceramics.
Flexible electrical performance.
Key properties such as piezoelectric constants and acoustic impedance can be tuned.
Qm can be reduced to below 15, while dh reaches 140 at 20 MPa.
Geometry and polarization direction can be customized to customer designs.
High axial resolution is enabled by the low mechanical Q factor, delivering broadband performance and short-pulse output.
