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Consolidation of Si3N4/SiC Whisker Composites by Colloidal Filtration

Published online by Cambridge University Press:  25 February 2011

J.P. Erauw ,
J. Luyten  and
J. Sleurs
J.P. Erauw
Affiliation:
Materials Research Unit -Flemish Institute for Technological Research SCK/V1TO, Boeretang 200, B-2400 Mol (Belgium)
J. Luyten
Affiliation:
Materials Research Unit -Flemish Institute for Technological Research SCK/V1TO, Boeretang 200, B-2400 Mol (Belgium)
J. Sleurs
Affiliation:
Materials Research Unit -Flemish Institute for Technological Research SCK/V1TO, Boeretang 200, B-2400 Mol (Belgium)
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Abstract

Stable Si3N4/SiCw co-dispersions containing up to 20 wt.% of whiskers have been prepared. Homogeneous green bodies with relative green density above 55% and pore size in the range 40-50 nm have been obtained by pressure assisted colloidal filtration. By optimizing the temperature and/or the amount of sintering additives, densities above 90-95 % have been achieved by pressureless sintering of these consolidated compacts.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 249: Symposium Q – Synthesis and Processing of Ceramics: Scientific Issues , 1991 , 311
Copyright
Copyright © Materials Research Society 1992

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References

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