Ultrasonic flux imaging in anisotropic solids

Richard L Weaver, Matt R. Hauser, James P. Wolfe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We introduce a new method for graphically imaging the elastic anisotropy of solids. Focused ultrasonic immersion transducers act as point sources and detectors. A spatial scan exhibits a pattern characteristic of the anisotropy. Caustics, related to `phonon focussing,' are broken into fringes due to interference between waves on neighboring sheets of the acoustic wave surface. Theoretical predictions for the images agree with experimental observations. We illustrate the technique here by an application to a single crystal of silicon. The new method holds promise for examining anisotropies in the vibrational properties of single crystals, textured polycrystals and composite materials. The observations may also have significant import for flaw detection in such materials.

Original languageEnglish (US)
Title of host publicationProceedings of the Ultrasonics International Conference
PublisherPubl by Butterworth-Heinemann Ltd
Pages535-538
Number of pages4
ISBN (Print)0750618779
StatePublished - Dec 1 1993
EventProceedings of the Ultrasonics International Conference - Vienna, Austria
Duration: Jul 6 1993Jul 8 1993

Publication series

NameProceedings of the Ultrasonics International Conference

Other

OtherProceedings of the Ultrasonics International Conference
CityVienna, Austria
Period7/6/937/8/93

ASJC Scopus subject areas

  • Engineering(all)

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