Piezoceramic-Polymer Composites for Underwater Transducer Applications,

Abstract

Lead zirconate titanate (PZT) ceramics have been used for underwater transducers. However, single phase PZT ceramic has limited hydrostatic performance due to the low hydrostatic piezoelectric charge and voltage coefficients, dh and gh, respectively. Although PZT with large piezoelectric charge coefficients d33 and d31, has been developed, the dh is still low because dh is equal to d33 + 2d31 where d33 is opposite in sign to d31 and has a magnitude only slightly higher than twice the magnitude of d31. The gh (= dh / epsilon) value is also small because the permittivity epsilon is high for monolithic PZT.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 28, 1996
Accession Number
ADA311064

Entities

People

  • Changyoung Kim
  • D. Lewis Iii
  • Michaël Kahn

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bulk Modulus
  • Coefficients
  • Composite Materials
  • Equations
  • Figure Of Merit
  • Glass Fibers
  • Honeycomb Structures
  • Hydrostatic Pressure
  • Lead Zirconate Titanates
  • Materials
  • Materials Science
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Polymer Matrix Composites
  • Static Pressure
  • Transducers

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.