Chapter 90. High-Strength, Creep-Resistant Y2O3-Stabilized Cubic ZrO2 Single Crystal Fibers

  1. John B. Wachtman Jr.
  1. K. J. Mcclellan1,
  2. H. Sayir1,
  3. A. H. Heuer1,
  4. A. Sayir2,
  5. J. S. Haggerty3 and
  6. J. Sigalovsky3

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314180.ch90

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

How to Cite

Mcclellan, K. J., Sayir, H., Heuer, A. H., Sayir, A., Haggerty, J. S. and Sigalovsky, J. (1993) High-Strength, Creep-Resistant Y2O3-Stabilized Cubic ZrO2 Single Crystal Fibers, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314180.ch90

Author Information

  1. 1

    Department of Materials Science and Engineering Case Western Reserve University Cleveland, OH 44106

  2. 2

    NASA-Lewis Research Center Cleveland, OH 44135

  3. 3

    Materials Processing Center Massachusetts Institute of Technology Cambridge, MA 02139

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375266

Online ISBN: 9780470314180

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Keywords:

  • coefficients;
  • composition;
  • effective;
  • stability;
  • thermal expansion

Summary

Y2O3-stabilized cubic ZrO2 (Y-CSZ) single crystal fibers have much higher thermal expansion coefficients than other possible oxide fibers and thus can serve as viable reinforcements for metallic- and intermetallic-matrix composites; furthermore, they offer good isotropic creep resistance. Data is presented for [001] ZrO2 single crystal fibers (9.5-21 m/o Y2O3) grown by the laser heated floating zone process; high temperature strengths were measured as a function of composition and the variation in tensile strength with temperature was measured for 21 m/o Y-CSZ fibers. Strengths of ∼2.0 GPa at −196°C, ∼1.5 GPa at room temperature and −500 MPa at 1400°C were achieved. All fibers failed in a brittle manner from surface or near-surface flaws.