Chapter 3. Processing Parameters for Whisker-Reinforced Composites

  1. John B. Wachtman Jr.
  1. P. A. Huber1,
  2. E. M. Deliso1,
  3. S. C. Danforth1 and
  4. A. Bleier2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch3

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Huber, P. A., Deliso, E. M., Danforth, S. C. and Bleier, A. (1989) Processing Parameters for Whisker-Reinforced Composites, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch3

Author Information

  1. 1

    Rutgers University Piscataway, NJ

  2. 2

    Oak Ridge National Laboratory Oak Ridge, TN

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • sic whisker-reinforced reactwn;
  • matrix compositions;
  • american matrix;
  • electron microscopy;
  • optical micrographs

Summary

SiC whisker-reinforced reaction bonded silicon nitride composites were fabricated by processing submicron Si powder and SiC whiskers in ethanol with the addition of a polyethoxylated amine. Potentiometric titration estimated that the equivalent weight of the amine additive was 1531 g/equiv. Adsorption of the additive did occur on the Si powder surface and it was Langmuirian in nature; the additive did not adsorb onto the SiC whisker surface. Rheologkal data for the Si-SiC whisker composite systems will be reported. Sedimentation studies determined that whisker packing densities in ethanol were 70% better than in aqueous systems. Composites formed by colloidal filtration were characterized for percentage of nitridation and for flexural strength.