Chapter 60. Correlation of NDE and Fractography in Si3N4

  1. John B. Wachtman Jr.
  1. R. A. Roberts and
  2. J. P. Singh

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310557.ch60

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

How to Cite

Roberts, R. A. and Singh, J. P. (1989) Correlation of NDE and Fractography in Si3N4, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310557.ch60

Author Information

  1. Argonne National Laboratory Argonne, IL 60439

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374863

Online ISBN: 9780470310557

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Keywords:

  • chemical vapor deposition;
  • fiber-reinforced ceramic composites;
  • chemical vapor infiltration;
  • high fracture toughness;
  • carbon-carbon composites

Summary

This presentation reports on an ongoing effort at Argonne National Laboratory to examine the correlation between NDE and fractography data obtained in Si3N4 containing seeded and naturally occurring flaws (Fe and Si inclusions, pores). Emphasis will be placed on the development of acoustic microscopy techniques for the detection of failure-initiating near-surface flaws in the tensile surface of modulus-of-rupture specimens. Fractography observations of failure-initiating flaw parameters and the attendant reduction in fracture strength will be discussed.