7. Addition of Excess Carbon to SiC to Study its Effect on Silicon Carbide (SiC) Armor

  1. Lisa Prokurat,
  2. Andrew Wereszczak and
  3. Edgar Lara-Curzio
  1. Chris Ziccardi1 and
  2. Richard Haber2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291368.ch8

Advances in Ceramic Armor II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 7

Advances in Ceramic Armor II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 7

How to Cite

Ziccardi, C. and Haber, R. (2006) Addition of Excess Carbon to SiC to Study its Effect on Silicon Carbide (SiC) Armor, in Advances in Ceramic Armor II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 7 (eds L. Prokurat, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291368.ch8

Author Information

  1. 1

    Rutgers University 607 Taylor Road Piscataway, NJ, 08854-8065

  2. 2

    Rutgers University 607 Taylor Road Piscataway, NJ, 08854-8065

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2006

ISBN Information

Print ISBN: 9780470080573

Online ISBN: 9780470291368

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Keywords:

  • silicon carbide;
  • powder;
  • agglomerates;
  • microstructural;
  • carbon

Summary

Commercial silicon carbide (SiC) powders are composed of a wide range of particle sizes, typically 0.5 to 15um depending on the powder. It was shown that by eliminating large particles and hard agglomerates greater than 2um improved microstructural uniformity in hot pressed parts could be achieved. The effect of carbon over-additions ranging from 0.25 to 5 % on microstructural uniformity was also examined. It was found that for over-additions of carbon exceed 1% the Knoop hardness was shown to decrease by as much as 20% compared with conventionally prepared, dense SiC. The effect of increased carbon percentages on microstructure and hardness was shown.