Chapter 91. Mechanical Properties of MgAl2O4 Single Crystal Fibers

  1. John B. Wachtman Jr.
  1. J. E. Sheehan1,
  2. J. Sigalovsky2,
  3. J. S. Haggerty2 and
  4. J. R. Porter3

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314180.ch91

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

Sheehan, J. E., Sigalovsky, J., Haggerty, J. S. and Porter, J. R. (1993) Mechanical Properties of MgAl2O4 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.ch91

Author Information

  1. 1

    MSNW, Inc. Escondido, CA 92029

  2. 2

    Massachusetts Institute of Technology Cambridge, MA 02139

  3. 3

    Rockwell International Science Center Thousand Oaks, CA 91360

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:

  • composites;
  • tensile;
  • oxidizing;
  • orientation;
  • structures

Summary

Single crystal oxide fibers are being considered as structural reinforcements for high temperature composites. In this work 170 m̈m diameter [110] MgAl2O4 fibers were grown by the laser heated floating zone process and characterized by x-ray diffraction and scanning electron microscopy. The fibers were tensile tested at room temperature and at four elevated temperatures up to 1433°C. Short term creep tests were conducted at 1927°C and 218.5 MPa (31.7 ksi) for direct comparison with data obtained previously on c-axis sapphire fibers. The mechanical properties of the [110] MgAl2O4 fibers compared favorably with those of other single crystal oxide fiber candidates.