Functional Ceramics

Electro Ceramics

The piezo and dielectric properties of zirconia has led it to be used in a wide range of electro ceramic applications for use in automotive, aerospace, medical and telecommunication applications. The most common electro ceramic material, based on zirconia, is lead zirconate titanate (PZT) which is formed into a range of complex shapes and parts to perform its role.
As a piezo ceramic it produces an electric charge with a mechanical change of shape and will vibrate when an electric charge is applied to it. It is these characteristics that are used in ultrasonic transducers, underwater sonars and automotive parking sensors.
As a dielectric the PZT is able to store electrical charge with low electrical loss and thermal stability. It is these characteristics that are used in microwave dielectrics, high voltage capacitors and radio frequency powder capacitors.

 

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