20. Stress Relaxation in Sintering of Fiber-Reinforced Composites Through Fiber Coating

  1. John B. Wachtman Jr.
  1. Claudia P. Ostertag and
  2. Subhas Malghan

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310557.ch20

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

Ostertag, C. P. and Malghan, S. (1989) Stress Relaxation in Sintering of Fiber-Reinforced Composites Through Fiber Coating, 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.ch20

Author Information

  1. National Institute of Standards and Technology Ceramics Division Gaithersburg, MD

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 infiltration;
  • ceramic composites;
  • sic fibers;
  • crack nucleation;
  • coarse particle coating

Summary

Coatings of different thicknesses of coarse and fine-sized alumina particles on silicon carbide fibers were used to influence the stress generation during the early stage of sintering of fiber-reinforced composites. The fine particle-size coating enhances the stress development, resulting in stress initiation at lower temperatures than for uncoated fibers. For coatings of coarse particles, stress initiation is delayed and occurs at higher temperatures with an overall reduction in stress level.