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

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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.

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Authors and Affiliations

  1. LURE, Bât. 209D, 91405, Orsay Cedex, France

    C. Laffon, A. M. Flank, P. Lagarde & M. Laridjani

  2. Institut textile de France, 35, rue des Abondances, 92100, Boulogne, France

    R. Hagege

  3. Société Européenne de Propulsion, 33160, St Medard, en Jalles, France

    P. Olry & J. Cotteret

  4. Laboratoire de Physique des Solides, 1, place A. Briand, 92195, Meudon, France

    J. Dixmier

  5. Laboratoire de Physique Quantique de l'ESPCI, U.A. 421, 10 Rue Vauquelin, 75005, Paris, France

    J. L. Miquel, H. Hommel & A. P. Legrand

Authors
  1. C. Laffon
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  2. A. M. Flank
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  3. P. Lagarde
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  4. M. Laridjani
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  5. R. Hagege
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  6. P. Olry
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  7. J. Cotteret
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  8. J. Dixmier
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  9. J. L. Miquel
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  10. H. Hommel
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  11. A. P. Legrand
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Laffon, C., Flank, A.M., Lagarde, P. et al. Study of Nicalon-based ceramic fibres and powders by EXAFS spectrometry, X-ray diffractometry and some additional methods. J Mater Sci 24, 1503–1512 (1989). https://doi.org/10.1007/BF02397093

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  • DOI: https://doi.org/10.1007/BF02397093

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