Chapter 41. Amorphous Silicon-Oxynitride Submicron Fibres

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. Andri Vital and
  2. Ulrich Vogt

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch41

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

Vital, A. and Vogt, U. (2002) Amorphous Silicon-Oxynitride Submicron Fibres, 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.ch41

Author Information

  1. Swiss Federal Institute for Materials' Testing and Research (EMPA) Department for High Performance Ceramics Ueberlandstrasse 129 CH-8600 Duebendorf

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:

  • silicon oxynitride;
  • diameter;
  • morphology;
  • dissolution;
  • metallic impurities

Summary

Amorphous silicon oxynitride fibers (Si-O-N) have been shown to possess extraordinary high-temperature properties. They are chemically and structurally stable up to 1400°C in nitrogen, 1300°C in argon and 1200°C in air. The fibers as processed have a submicron diameter and a length of several centimeters. Production of discontinuous, long-staple fiber mats has been performed by a single-step process running at 1450°C with SiO2, SiC, Ti powder and NH3 gas as raw materials. Up to 50g of submicron fibers can be synthesized in a batch run. Due to their as processed morphology and high-performance properties, the Si-O-N fibers are promising for use in high-temperature applications such as hot-gas filters, high temperature catalysts support, insulation material and as reinforcement filler in CMCs and MMCs.