Chapter 45. Melt Extraction and Properties of ZrO2-Al2O3-Based Fibers

  1. John B. Wachtman Jr.
  1. M. Allahverdi1,
  2. R. A. L. Drew1 and
  3. J. Strom-Olsen2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314784.ch45

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

How to Cite

Allahverdi, M., Drew, R. A. L. and Strom-Olsen, J. (1995) Melt Extraction and Properties of ZrO2-Al2O3-Based Fibers, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314784.ch45

Author Information

  1. 1

    Department of Mining and Metallurgical Engineering, Montreal, Quebec, Canada

  2. 2

    Department of Physics McGill University, Montreal, Quebec, Canada

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375389

Online ISBN: 9780470314784

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Keywords:

  • realizing;
  • methodologies;
  • organization;
  • implementation;
  • combining

Summary

A novel melt extraction technique has been developed to produce Zirconia-Alumina (ZA), Zirconia-Alumina-Silica (ZAS) and Zirconia-Alumina-Titania (ZAT) fibers from small molten drops of these oxides. Two types of fibers were extracted: uniform fibers at wheel velocities <3 m/s and fibers exhibiting Rayleigh waves at higher speeds. The contact geometry of the molten drops with the rotating wheel was recorded and implies that the viscosity of the molten ZAS is the highest. Uniform diameter (10-20 μm) ZAS and ZAT fibers were amorphous whereas the ZA fibers were partially crystalline. The amorphous fibers devitrified in the temperature range of 930–980°C. The tensile strengths of the uniform fibers were outstanding (up to 3500 MPa) with moderate elastic moduli (127-143 GPa).