Journal of Materials Science

, Volume 24, Issue 4, pp 1177–1190

Synthesis of continuous silicon carbide fibre

Part 6 Pyrolysis process of cured polycarbosilane fibre and structure of SiC fibre
  • Yoshio Hasegawa
Papers

DOI: 10.1007/BF02397045

Cite this article as:
Hasegawa, Y. J Mater Sci (1989) 24: 1177. doi:10.1007/BF02397045
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Abstract

Polycarbosilanes which were synthesized by three methods were melt-spun and cured by heating at low temperatures in air. The curing mechanism and the structure of these cured fibres were studied and the relationship between the structure and the pyrolysis process is discussed. The structure of the cured fibre is represented by means of five structural elements and the rate of oxidation of the methyl group. The pyrolysis process of the cured fibre is discussed in five stages, and the effect of oxygen introduced into polycarbosilane fibre by curing on the pyrolysis process is clarified. The structure of the fibre obtained during the pyrolysis process strongly depends on the molecular weight of polycarbosilane.

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© Chapman and Hall Ltd. 1989

Authors and Affiliations

  • Yoshio Hasegawa
    • 1
  1. 1.The Research Institute for Special Inorganic MaterialsIbaraki-kenJapan