New Material pic184 from PI Ceramic: Hard Material for Power Ultrasound
The ceramic material PIC184 is based on modified lead zirconate titanate (PZT) and is one of the ferroelectrically hard piezo materials. High-power ultrasound applications are characterized by a high dynamic range, from several hundred kilohertz up to a few MHz, as well as by high operating amplitudes. Especially during continuous operation, the key thing to achieve is to have stable oscillation properties with low mechanical and dielectrical losses, i.e. generating as little heat as possible in the converter element. Pic184 features a large electromechanical coupling factor with moderately high quality factor, as well as exceptional mechanical and electrical stability. At the same time, the converter properties of the new material are virtually independent of time and temperature, rendering them suitable for high power applications. Pic184 is a good choice for transducer applications such as ultrasonic cleaning, sonar technology or acoustic NDT processes (nondestructive testing). These call for high amplitudes when operating in resonance mode. Biotechnology applications such as scalers for tooth plaque removal, or the ultrasonic processes involved in ultrasonic surgery all benefit from the properties of PIC184.