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1995-02-07 - Article/Dans un journal avec peer-review - Anglais - 15 page(s)

Gonon Maurice , Hampshire Stuart, Disson Jean-Pierre, Fantozzi Gilbert, "A Polysilazane Precursor for Si-C-N-O Matrix Composites" in Journal of the European Ceramic Society, 15, 0955-2219195/$9.50

  • Edition : Elsevier Science, Oxford (United Kingdom)
  • Codes CREF : Matériaux céramiques et poudres (DI2744)

Abstract(s) :

(Anglais) This paper reports the ability to use a commercial poIysilazane as matrix precursor for the manufacture of ceramic matrix composites. By pyrolysis under nitrogen in the temperature range IOOO-1400°C this polysilazane leads to an amorphous silicon carbonitride with a ceramic yield around 65 wt%. The rheological behaviour and the thermal decomposition of the polysilazane have been studied. Parameters for the impregnation and pyrolysis cycles required by the manufacture of composites are also proposed.