Hard materials
Characteristics of hard piezoceramic material (PZT4, PZT8 )
Hard materials are suitable for dynamic/on-resonance applications, where the high mechanical quality factor determines the amplification of the deflection at resonance. Hard materials can withstand high level of electrical excitation and mechanical stress, and are not easy poled or depoled except at elevated temperature. However, this stability is accompanied by relatively low piezoelectric constants (i.e. low strain). If intending to use piezoelectric components in high power applications for instance, e.g. for ultrasonic cleaning, it is strongly recommended to select products based on a hard piezoceramic material, which has roughly a factor 10 lower losses than “soft” materials and will therefore heat-up less.
Hard materials are particularly well suited to high-power acoustic applications. These include:
• Ultrasonic cleaning devices
• Tools used for drilling, bonding, and welding
• Ultrasonic processes
• Medical and surgical instruments
• Sonar technology
Contact us
2501b, block B, central Times Square, Longgang central city, Shenzhen,China