Chapter 46. Functionally Graded Boron Carbide

  1. Don Bray
  1. J. J. Petrovic,
  2. K. J. McClellan,
  3. C. D. Kise,
  4. R. C. Hoover and
  5. W. K. Scarborough

Published Online: 23 MAR 2010

DOI: 10.1002/9780470294499.ch46

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4

How to Cite

Petrovic, J. J., McClellan, K. J., Kise, C. D., Hoover, R. C. and Scarborough, W. K. (1998) Functionally Graded Boron Carbide, in 22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4 (ed D. Bray), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294499.ch46

Author Information

  1. Materials Science & Technology Division, Los Alamos National Laboratory, Los Alamos, NM, 87545

Publication History

  1. Published Online: 23 MAR 2010
  2. Published Print: 1 JAN 1998

ISBN Information

Print ISBN: 9780470375594

Online ISBN: 9780470294499

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Keywords:

  • strain;
  • manufacturability;
  • variable;
  • formability;
  • deformation

Summary

Fabrication techniques were developed for producing graded porosity B4C, and for producing aluminum-B4C and epoxy-B4C fuctionally graded materials. The key fabrication aspect was obtaining the graded porosity B4C. The feasibility of producing graded porosity B4C using a grading of carbon densification aid produced from a gradient of furfuryl alcohol carbon precursor was demonstrated. This approach is quite promising, but it was not optimized in the present investigation. Graded porosity B4C materials were produced by a layering approach using different size distributions of B4C powders in the green state, and then densifLing the layered assembly by hot pressing at 1900°C. The hardness of uninfiltrated graded B4C, aluminum infiltrated B4C, and epoxy infiltrated B4C was observed to be similar.