Chapter 12. Continuous Examination of SiC Fiber-Reinforced Alumina with MRI, FT-IR, and SEM

  1. John B. Wachtman Jr.
  1. S. Karunanithy

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313053.ch12

14th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 9/10

14th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 9/10

How to Cite

Karunanithy, S. (2008) Continuous Examination of SiC Fiber-Reinforced Alumina with MRI, FT-IR, and SEM, in 14th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313053.ch12

Author Information

  1. Atlantic Research Laboratory, National Research Council of Canada, Halifax, N.S., Canada B3H 3Z1

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1990

ISBN Information

Print ISBN: 9780470374931

Online ISBN: 9780470313053

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Keywords:

  • magnetic;
  • composites;
  • ceramic;
  • microscopic;
  • alumina

Summary

Analytical techniques such as magnetic resonance imaging (MRI) and Fourier Transform infrared spectroscopy (FT-IR) have been applied for continuous testing of fiber-reinforced ceramics. MRI can be applied nondestructively to detect such physical flaws as agglomerates of the fibers and open pores present in the green state composites made by slipcasting. Examination of the composites after sintering using SEM confirms the results obtained by MRI. The SiC fibers undergo surface oxidation during the sintering process. However, FT-IR analysis of the composite shows that further oxidation of the fibers is prevented when the grains of the sintering aid form a coating on the fiber surface during the sintering process.