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Contact Us

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5121 Winnetka Avenue North  
Suite 100  
Minneapolis, Minnesota 55428  
Phone: 763.535.9660  
Fax: 763.535.9655
Alpha Distinctives: Piezoelectric Materials Characteristics
  • High Density/High Strength Materials
  • High Transparency Electro-Optic Materials
  • Customized Formulations & Sizes
  • High Displacement Materials
  • Broad Base of Experience
  • On-Site Research and Development

Additional Resources: 
Electro Optic PLZT Materials  
Thermal Properties of Piezoelectric Materials  

Hard Materials (PZT)

Common Characterisics    
  • High QM
  • Low dielectric constant
  • Low dielectric losses
  • High coercive fields
KT3 d33 kp TC Aging High
Field
Stability		 Thermal
Stability		 Features
K1000
(Navy Type III)		 1000 L M H M H M
  • Low loss and good high field properties are ideal for high drive conditions
K1200 1200 L M H M M M
  • Ideal for moderate power applications
K1300
(Navy Type I)		 1300 L M H M M M
  • Excellent for applications requiring receive and transmit capabilities
K1450 1450 M M H H L M
  • High displacement while maintaining many of the characteristics of hard materials
Hard Materials Applications
*Sonar Projectors *Deep Water Transducers *Ultrasonic Transducers *Hydrophones *Displacement Transducers *Force Transducers

Soft Materials (PZT)

Common Characterisics    
  •  High coupling factors
  • High charge (or strain) constants
  • High dielectric constants
  • High dielectric losses
  • Low QM
KT3 d33 kp TC Aging High
Field
Stability		 Thermal
Stability		 Features
C1600
Navy Type II		 1750 M M H L L M
  • Thermal Stability
C2700
Navy Type V		 2700 H H M L L L
  • High displacement and sensitivity
C3200
Navy Type VI		 3400 H H M L L L
  • High displacement
C3900 3900 VH VH M M L L
  • Very High displacement and very high dielectric constant
Soft Materials Applications
*Hydrophones *Displacement Transducers *Micropositioners *Actuators *Sensors *Medical Ultrasound

Special Materials

Common Characterisics    
  • High voltage constants (gij)
  • Square hysteresis loops
  • Low coercive fields
  • Low dielectric constants
KT3 d33 kp TC Aging High
Field
Stability		 Thermal
Stability		 Features
E2500 VL VL VL M - - -
  • High transverse and planar freq constants
S450 VL L L H - - -
  • High transverse and planar freq constants
  • High voltage constant
  • High Curie point
S700 VL L L H - - -
  • High voltage constant
  • High Curie point
B500 VL L L H - - -
  • High transverse and planar freq constants
  • High voltage constant
  • High Curie point
Special Materials Applications
*Power Sources *Sensors *Ultrasonic Delay Lines

Electrostrictive Materials

Common Characterisics    
  •  Slim loop ferroelectrics
  • Large electrostrictive effects
KT3 d33 kp TC Aging High
Field
Stability		 Thermal
Stability		 Features
9.0/65/35/PLZT VH NA NA L - - -
  • High field induced strain
90PMN-10PT VH NA NA L - - -
  • High field induced strain
Electrostrictive Applications
*Actuators *Micropositioners

Electro-Optic Materials (PLZT)

Common Characterisics    
  •  High Transparency
KT3 d33 kp TC Aging High
Field
Stability		 Thermal
Stability		 Features
EO-70 M H H L - - -
  • Memory Material
  • Higher Curie Point
EO-80 H H H VL - - -
  • Memory Material
  • High Transparency
EO-90 VH NA NA VL - - -
  • Quadratic response
  • High Transparency
EO-95 VH NA NA VL - - -
  • Quadratic response
  • High Transparency
EO-120 L L M L - - -
  • Linear response
  • High Transparency
Electro-Optic Applications
*Shutters *Modulators *Color Filters *Image Storage *Displays

Symbol Key

L - Low                        VH - Very High
M - Medium                VL - Very Low
H - High                        NA - Not Applicable

New Materials
New materials are continually being developed for micropositioner and actuator applications that require high dielectric constants and large field induced displacements.