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U.S. Department of Energy
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Carbon fibre-reinforced silicon nitride composites by slurry infiltration

Conference ·
OSTI ID:134912
; ; ;  [1]
  1. Commission of the European Communities, Petten (Netherlands)

The present paper reports on the fabrication of long-carbon fibre reinforced silicon nitride matrix composites by liquid infiltration of an aqueous Si{sub 3}N{sub 4} slurry followed by hot-pressing. A methodology for the maximum volume and uniform infiltration of preforms has been developed by optimising slurry rheology and fibre wetting conditions. Fully infiltrated green forms of 55% theoretical density are achieved with some 40% volume fraction of fibres. The quality of the composites has been assessed by microstructural analysis and mechanical characterization.

OSTI ID:
134912
Report Number(s):
CONF-9508127--
Country of Publication:
United States
Language:
English