Chapter 73. Nextel™ 610 Fiber-Reinforced Alumina-YAG Porous Matrix Composites

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. Michael K. Cinibulk,
  2. Kristin A. Keller,
  3. Tai-Il Mah and
  4. T.A. Parthasarathy

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch73

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

Cinibulk, M. K., Keller, K. A., Mah, T.-I. and Parthasarathy, T.A. (2008) Nextel™ 610 Fiber-Reinforced Alumina-YAG Porous Matrix 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.ch73

Author Information

  1. Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson Air Force Base, Ohio 45433–7817

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:

  • alumina;
  • densification;
  • degradation;
  • electron microscopies;
  • microscopic crazes

Summary

Nextel™ 610 fiber-reinforced porous matrix composites with matrices containing various amounts of YAG and alumina were produced to determine the effect of YAG on retained tensile strengths after heating to 1100° and 1200°C. In all cases the YAG-containing composites gave higher ultimate stresses and greater strains to failure than the all-alumina composites when processed at 1200°C for times of up to 100 h. No correlation was found between strength and amount of YAG in the matrix; however, composites with matrices containing YAG, vs. alumina, as the binder phase had higher strengths. YAG was found to greatly hinder densification of alumina at 1200°C. The greater strengths of the YAG-containing composites can be attributed, at least in part, to a reduction in matrix densification, compared to the all-alumina matrix composite.