Chapter 90. High-Strength, Creep-Resistant Y2O3-Stabilized Cubic ZrO2 Single Crystal Fibers
- John B. Wachtman Jr.
Published Online: 28 MAR 2008
Copyright © 1993 The American Ceramic Society
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
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1993
Print ISBN: 9780470375266
Online ISBN: 9780470314180
- thermal expansion
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  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.