Chapter 17. High Toughness Silicon Carbide

  1. John B. Wachtman Jr
  1. K. Y. Chia and
  2. S. K. Lau

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313848.ch17

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

How to Cite

Chia, K. Y. and Lau, S. K. (1991) High Toughness Silicon Carbide, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313848.ch17

Author Information

  1. The Carborundum Company Ceramic Technology Center Niagara Falls, NY 14302

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1991

ISBN Information

Print ISBN: 9780470375105

Online ISBN: 9780470313848

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Keywords:

  • carbide;
  • carborundum;
  • microstructure;
  • powder;
  • oxygen

Summary

Hexoloyr̀ SX, a new member of Carborundum's silicon carbide family of materials, has been demonstrated to possess better strength and toughness than those of its parent Hexoloy*SA silicon carbide. Typical values of room temperature four-point bend strength and SENB toughness of post-HIP'ed Hexoloyr̀ SX range from 621 to 827 MPa (90-120 ksi) and 8 to 10 MPa-m1/2, respectively. These room temperature mechanical properties are comparable to the best of silicon nitride materials available, but at a significantly lower raw material cost. Moreover, preliminary results also show Hexoloyr̀ SX to have excellent creep, wear, and erosion resistance.