Piezoelectric Materials

Custom Materials.	ECD manufacturers several ceramic materials formulated to meet the particular needs of specific applications.
PZT-5B	PZT-5B has higher sensitivity and piezoelectric activity than PZT-5A, with a slightly lower Curie temperature.
PZT-5R	This material is used in applications such as towed array lines. PZT-5R has high acoustic sensitivity, and high coupling, while maintaining high permittivity.
PZT-5M	This material was developed for medical imaging to have very good sensitivity and high permittivity, and still maintain a good Curie temperature.
PZT-5K - New Spec	This material was developed to maximize the sensitivity and permittivity, while still achieving a Curie temperature that is workable.
PZT-7A	This material is used in ultrasonic delay lines and other high frequency shear resonance applications. PZT-7A is a material featuring a high shear coupling coefficient with low permittivity, and high temperature stability. Its ageing characteristics are extremely low (high time stability), providing extremely low phase distortion in electrical resonance circuits.
PZT-7D	With lower dissipation than PZT-7A, this material is used in applications requiring higher power handling capability. PZT- 7D is a modified PZT-7A material, characterized by a higher permittivity and piezoelectric activity with only a slight reduction in coupling. Its extremely low ageing characteristics provide very stable, highly reproducible operation.
PC6/PT2	This material is a modified lead titanate and has a large piezoelectric effect in the thickness mode as compared to the radial moded. As a result of this property, this material is particularly useful in sonar receiver arrays and non-destructive testing equipment.

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