Modified Lead Zirconate Titanate

Piezo Technologies' modified lead zirconate titanate (PZT) ceramics have high thickness and lateral coupling coefficients, low permittivity, and high temperature stability. PZT materials are used in a large variety of high frequency thickness and lateral resonance applications. Common uses for PZT piezoelectric materials include sonar and hydrophones, high voltage generators, medical therapy and HIFU applications, accelerometers, and rail inspection, NDT medical, level, acoustic emission, pressure, flow, air shear, knock, and igniter piezoelectric transducers.

Compared detailed material properties in our Materials Chart.

Soft PZT ceramics

Soft PZT materials are characterized by wide bandwidths and high d₃₃, coupling coefficients, and dielectric constants.

• K-350 (PZT-5A) high voltage generator driven at medium power levels for hydrophones and accelerometers

• K-500 (PZT-5J) very high relative dielectric constant, stable piezoelectric constants for low frequency, high sensitivity geophones and hydrophones

• K-600 (PZT-5H) high permittivity is suitable for applications such as 1-3 composites, actuators, sensitive receivers and line hydrophones

• K-740 high coupling and permittivity, very high dielectric constant and piezoelectric constant for 1-3 composites and actuators

Hard PZT ceramics

Hard PZT materials have high Qs and high drive capability.

• K-182 (PZT-2) higher dielectric constant, high thickness and lateral coupling coefficients, low permittivity, and high temperature stability for applications such as ultrasonic delay lines

• K-183 (PZT-7A) high thickness and lateral coupling coefficients, low permittivity, high temperature stability for applications like ultrasonic delay lines

• K-270 (PZT-4) highly resistant to depoling under conditions of severe mechanical stress and high voltage electric drive for use in high power acoustic radiating transducers

• K-278 (PZT-8) very high mechanical quality, extremely low loss factor, unique power handling capability

• K-300 (PZT-4D) high sensitivity, high mechanical quality, low dissipation factor for high power applications such as High Intensity Focused Ultrasound (HIFU)

Special hard PZT piezoelectric materials are selected for their very high Qs and high dielectric constants.

• K-320 strong electrical and mechanical fields, low dielectric losses for use in extremely high-power applications like HIFU

• K-340 high dielectric constant, high mechanical quality, low dissipation for HIFU medical therapy devices

Navy Type PZT ceramics

Navy Type PZT materials align with MIL-STD-15376B standards for physical, electrical, and performance characteristics for lead zirconate titanate piezo ceramics.

• K-270, Navy I PZT-4
• K-350, Navy II PZT-5A
• K-278, Navy III PZT-8
• K-500, Navy V PZT-5J
• K-600, Navy VI PZT-5H

Our Materials Chart makes it easy to compare detailed material properties across our range of piezoelectric ceramics.