Chapter 23. Effect of Hot-Pressing Conditions on the Density and Microstructure of B4C/B6Si Composites

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. J.C. Lasalvia,
  2. G.A. Gilde and
  3. P.J. Patel

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch23

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

How to Cite

Lasalvia, J.C., Gilde, G.A. and Patel, P.J. (2002) Effect of Hot-Pressing Conditions on the Density and Microstructure of B4C/B6Si Composites, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294741.ch23

Author Information

  1. U.S. Army Research Laboratory AMSRL-WM-MC Aberdeen Proving Ground, MD 21005–5069

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375785

Online ISBN: 9780470294741

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Keywords:

  • density;
  • microstructure;
  • X-ray diffraction;
  • ceramics;
  • densification

Summary

The effect of hot-pressing conditions on the density and microstructure of boron carbide with silicon hexaboride was investigated. Boron carbide/silicon hexaboride powder mixtures, with 5 at.% silicon, were hot-pressed between 1560d̀C and 1640d̀C at 20 MPa for 1 hr. Bulk densities greater than 98% were achieved. Phases and microstructure were determined by X-ray diffraction and scanning electron microscopy, respectively. The effect of maximum hot-pressing temperatures on the resulting densities, phases, and microstructures will be discussed.