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Piezo Ceramic Materials
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| Our piezoceramic materials are based on modified Lead Zirconate Titanate (PZT). PI Ceramic is collaborating in research projects to develop lead-free materials. Piezo Ceramics are typically divided into 2 groups: "soft" and "hard" PZT ceramic materials differ in their piezoelectric constants. |
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| "Soft"-Piezo Ceramics Characteristic features are a comparably high domain mobility and therefore a "soft ferroelectric" behavior, which means relatively easy to polarize. The advantages of the "soft" PZT materials are their large piezo-electric charge coefficient, moderate permittivity and high coupling factor. Important fields of application for "soft" piezo ceramics are actuators for micropositioning and nanopositioning, sensors such as conventional vibration pickups, ultrasonic transmitters and receivers for flow or level measurement, object identification or monitoring as well as electro-acoustic applications (sound transducers, microphones). Our soft ceramics are PIC151, PIC255, PIC155, PIC153 and PIC152. "Hard"-Piezo Ceramics These materials can be put under high electrical and mechanical stress. The properties change only little under these conditions and this is ideal for high-power applications. The advantages of these PZT materials are the moderate permittivity, large piezoelectric coupling factors, high quality and very good stability under high mechanical loads and operating fields. Low dielectric losses facilitate their continuous use in resonance mode with only low intrinsic warming of the component. These piezo elements are used in applications like ultrasonic cleaning or sonar, for material processing (ultrasonic welding, bonding, drilling, etc.), in the medical field (diagnostics, surgical instruments). Our hard ceramics are PIC181, PIC141, PIC241 and PIC300. |
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