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Title:
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Fibre reinforced CMC with organometallic delivered matrix
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Author(s):
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Published by:
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Publication date:
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ECN
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1998
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ECN report number:
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Document type:
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ECN-RX--98-025
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Article (scientific)
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Number of pages:
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17
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Published in: Paper, presented at the conference CIMTEC, World ceramics congress & forum on new materials, held in Florence, Italy, from 14 ti (), , , Vol., p.-.
Abstract:
The C/S3N4 composite material was manufactured by a pressureinfiltration of 2D carbon fibre preforms using a Si3N4 slurry followed by a
single liquid preceramic polymer infiltration and pyrolysis in a furnace with
a nitrogen atmosphere. The densification degree, microstructure, thermal and
mechanical properties of the composite material were characterised. The
C/Si3N4 composite material pyrolyzed at 1300C is considered to be a very
promising material for low temperature applications. The residual porosity of
the material was in a range of 8-9 %, the specific density was 2.13 g/cm3,
the flexural strength was approximately 200 MPa and the Young's modulus 120
GPa. 11 refs.
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