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Preparation and Characterization of Alumina based TiNn and SiCn Composites

Published online by Cambridge University Press:  11 February 2011

Mats Carlsson
Affiliation:
Dept. Inorg. Chem., Stockholm University, SE-106 91 Stockholm, Sweden
Mats Johnsson
Affiliation:
Dept. Inorg. Chem., Stockholm University, SE-106 91 Stockholm, Sweden
Annika Pohl
Affiliation:
Dept. Mater. Chem., The Ångström Lab., Uppsala University, SE-751 21 Uppsala, Sweden
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Abstract

Ceramic composites containing 2 and 5vol. % of nanosized commercially available TiN and SiC particles in alumina were prepared via a water based slurry processing route followed by spark plasma sintering (SPS) at 75 MPa in the temperature range 1200–1600°C. Some of the samples could be fully densified by use of SPS already after five minutes at 1200°C and 75 MPa. The aim was to control the alumina grain growth and thus obtain different nano-structure types. The microstructures have been correlated to some mechanical properties; e.g. hardness and fracture toughness.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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References

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