Elastic Domain Wall Waves in Ferroelectric Ceramics and Single Crystals

Abstract

This report reviews research on acoustic guided waves along poling transitions in counter-poled ferroelectric ceramics, signal processing with programmable electrostrictive SAW transducers, improved performance and mode suppression in periodic piezoelectric/epoxy composites, programmable acoustic and optical gratings in ferroelastic crystals. It concludes with projections and needs for future work on electrostrictive transducers and periodic composites for hydrophone applications. Particular attention is paid to new materials and structures for the transducers, and to the potential of periodic composites for spatial filtering of turbulent boundary layer noise in hydrophones.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1988
Accession Number
ADA198910

Entities

People

  • B. A. Auld

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Ceramic Materials
  • Computer Programming
  • Crystal Structure
  • Dielectric Permittivity
  • Electromagnetic Fields
  • Filtration
  • Frequency Bands
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Standing Waves
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Transducers
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Image Processing and Computer Vision.
  • Materials Science and Engineering.