0

Advanced Ultrasonic NDE Methods for Characterizing Porosity in SiC FREE

[+] Author Affiliations
D. C. Kunerth, K. L. Telschow

EG&G Idaho, Inc., Idaho Falls, ID

Paper No. 87-GT-6, pp. V005T12A002; 6 pages
doi:10.1115/87-GT-6
From:
  • ASME 1987 International Gas Turbine Conference and Exhibition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Process Industries; General
  • Anaheim, California, USA, May 31–June 4, 1987
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7927-6
  • Copyright © 1987 by ASME

abstract

Ultrasonic techniques are being developed to detect and characterize porosity in advanced ceramic materials. The techniques use the acoustic backscatter resulting from the porosity or other anomalies and the ultrasonic signal timing and energy characteristics corresponding to propagation velocity and signal amplitude. Although all of the techniques are acoustic in nature, different signal processing algorithms provide different information about the porosity distribution. Four techniques are presented as well as experimental results from a sample of silicon carbide having a known porosity distribution. Information obtained from radiography and microscopic optical examination are compared with the ultrasonic results.

Copyright © 1987 by ASME
This article is only available in the PDF format.

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In