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COMPOSITE MATERIALS

Random Fiber Composite
Regular Fiber Composite
 

APC International, Ltd. offers a range of options in the area of custom piezocomposite materials. These materials can be an excellent choice when standard piezoelectric ceramic materials do not suit an application. Composites are a combination of an active material such as piezoelectric ceramics and a passive material such as a polymer or epoxy. One basic relationship between the active and passive material is commonly referred to as connectivity. Connectivity is a convenient notation for illustrating the number of dimensions through which a material is continuous. Connectivity of a piezoelectric composite is shown as a combination of two numbers such as 1-3, 2-2 or 0-3 where the first digit represents the active material and the second digit represents the passive material. APC composites are 1-3 composites, which means that the piezoelectric material is continuous in one direction. The connectivity relationship is the origin of some of the benefits of these composites.

How do APC 1-3 composites differ from APC bulk Piezo Parts?

  • Lower acoustic impedance between 8MRayl and 26MRayl
  • Highler coupling coefficient
    • Typically 0.63 to 0.70 compared with 0.54 of bulk material
  • Higher bandwidth and lower Qm
  • Review the composite type pages for additional benefits

 Common Applications For 1-3 Composites

  • Non-Destructive Testing (NDT) ultrasound transducers
  • SONAR, single element
  • Flow control
  • Ultrasonic air transducers
  • SONAR, phased arrays
  • Medical ultrasound transducers

 When Ordering or Requesting a Quote, specify the following characteristics*

  • Composite Type
  • Material
  • Shape
  • Frequency
  • Pixel/Fiber/Rod Size
  • Fill%
  • Electrode Type