Journal of Materials Science

, Volume 24, Issue 4, pp 1503–1512 | Cite as

Study of Nicalon-based ceramic fibres and powders by EXAFS spectrometry, X-ray diffractometry and some additional methods

  • C. Laffon
  • A. M. Flank
  • P. Lagarde
  • M. Laridjani
  • R. Hagege
  • P. Olry
  • J. Cotteret
  • J. Dixmier
  • J. L. Miquel
  • H. Hommel
  • A. P. Legrand
Papers

Abstract

The Nicalon SiC-based ceramic fibres and their precursors have been investigated by complementary techniques: EXAFS, WAXS, ESCA and NMR. For SiC-Nicalon fibres, an alternative model is proposed based on a microcrystalline structure where pureβ-SiC is embedded in a continuum of tetrahedral SiCxOy(x+y=4). We have found that the inorganic material skeleton is already contained in the carbon and silicon structure of the polymer precursor.

Keywords

Polymer Silicon Alternative Model Inorganic Material Additional Method 

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Copyright information

© Chapman and Hall Ltd. 1989

Authors and Affiliations

  • C. Laffon
    • 1
  • A. M. Flank
    • 1
  • P. Lagarde
    • 1
  • M. Laridjani
    • 1
  • R. Hagege
    • 2
  • P. Olry
    • 3
  • J. Cotteret
    • 3
  • J. Dixmier
    • 4
  • J. L. Miquel
    • 5
  • H. Hommel
    • 5
  • A. P. Legrand
    • 5
  1. 1.LUREOrsay CedexFrance
  2. 2.Institut textile de FranceBoulogneFrance
  3. 3.Société Européenne de PropulsionSt Medard, en JallesFrance
  4. 4.Laboratoire de Physique des SolidesMeudonFrance
  5. 5.Laboratoire de Physique Quantique de l'ESPCI, U.A. 421ParisFrance

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