Chapter 4. Preparation of Silicon Carbide Fiber from Activated Carbon Fiber and Gaseous Silicon Monoxide

  1. John B. Wachtman Jr
  1. K. Okada,
  2. H. Kato,
  3. R. Kubo and
  4. K. Nakajima

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314715.ch4

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4

How to Cite

Okada, K., Kato, H., Kubo, R. and Nakajima, K. (1995) Preparation of Silicon Carbide Fiber from Activated Carbon Fiber and Gaseous Silicon Monoxide, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314715.ch4

Author Information

  1. Central Research Laboratory, New Oji Paper Co., Ltd., Tokyo 135 Japan

Publication History

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

ISBN Information

Print ISBN: 9780470375372

Online ISBN: 9780470314715

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Keywords:

  • submicrometer;
  • tensile;
  • adsorption;
  • crystalline;
  • analyzer

Summary

Crystalline silicon carbide (SiC) fiber was produced by a new, simple procedure. Activated carbon fiber (ACF) was reacted with gaseous silicon monoxide and was converted to SiC fiber at elevated temperature and reduced pressure. The reaction was completed at temperatures as low as 1473K. The reacted fiber consisted of submicrometer particles and the SiC crystal size determined by x-ray diffraction was approximately 30 nm. The fiber consisted of β-type SiC crystals only. The microstructure of the fiber became dense after it was heat-treated in N2 at 1873K for 10.8 ks. With heat treatment the content of oxygen decreased from 5.9 to 1.3% and that of nitrogen increased from 0.07 to 2.0%. The tensile strength of heat-treated fiber increased from 300 MPa of untreated fiber to 1000 MPa.