31. Means of Using Advance Processing to Eliminate Anomalous Defects on SiC Armor

  1. Jeffrey J. Swab
  1. Chris Ziccardi1,
  2. Volkan Demirbas1,
  3. Richard Haber1,
  4. Dale Niesz1 and
  5. J. McCauley2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291276.ch31

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

How to Cite

Ziccardi, C., Demirbas, V., Haber, R., Niesz, D. and McCauley, J. (2005) Means of Using Advance Processing to Eliminate Anomalous Defects on SiC Armor, in Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7 (ed J. J. Swab), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291276.ch31

Author Information

  1. 1

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

  2. 2

    Army Research Lab Aberdeen, MD

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982374

Online ISBN: 9780470291276

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Keywords:

  • microstructural defects;
  • silicon carbide;
  • armor materials;
  • surfactants;
  • chemical uniformity

Summary

Microstructural detects are known to be present in commercial silicon carbide armor materials. Isolated pores, low density regions, large grains and inclusions are common defects. Microstructural quality can be improved by improving both the chemical and physical uniformity of the body. The increased mixedness of sintering additives greatly improves chemical inhomogenieties which can give rise to localized density variations. Improved powder processing and green forming can significantly reduce the presence of isolated pores, large grains and inclusions.

This study will show how commercial SiC powders can be improved by removing coarse inclusions. Colloidal processing will be shown as a means of improving the green microstructure of SiC compacts. The chemical uniformity of the final microstructure will be shown to be improved by the use of an aqueous based surfactant additive system.