PZT-8: 134 °C, 100 thermal shock cycles, no performance degradation. Ultrasonic surgical scalpel minimum amplitude 21 µm.
PZT-4: Qm > 2000.
Strong full-process-chain quality controllability: minimal performance variation between material batches; Curie temperature ≥ 310 °C.
Ultrasonic surgical scalpel vs. conventional surgical scalpel — comparison
Specialized ceramics for ultrasonic surgical scalpels – performance requirements
◉ Piezoelectric ceramics for ultrasonic surgical scalpels must meet three core requirements: high conversion efficiency, high stability, and high reliability.
◉ High-Qm piezoelectric ceramics (Type 81, Type 82, Type 42) provide better tolerance to high electric fields and high mechanical stress with low internal loss, and are commonly used in ultrasonic surgical scalpels requiring high-power output.
◉ Type 42 piezoelectric ceramic features a high electromechanical coupling coefficient.