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Fabrication and characterization of $SiC/MoSi_2 $composites

Pan, J and Surappa, MK and Saravanan, RA and Liu, BW and Yang, DM (1998) Fabrication and characterization of $SiC/MoSi_2 $composites. In: Materials Science and Engineering A, 244 (02). pp. 191-198.

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Abstract

In the present study, SiC particle reinforced molybdenum-disilicide (MoSi2) matrix composites have been fabricated by hot press sintering and in situ reaction sintering process successfully. Hot pressed SiCp/MoSi2 composite has a phase constituent with about 20 vol.alpha-SiC and less Mo5Si3 in MoSi2 matrix. In situ SiC/MoSi2 composite contains about 24.5 vol.% beta-SiC and a small amount of Mo5Si3 in MoSi2 matrix. Two types of SiC/MoSi2 composites have been improved in their hardness, flexural strength and fracture toughness. Compressive yield strength of SiC/MoSi2 composites at 1200 and 1400 degrees C has also been enhanced obviously. Wear behavior test abraded on Al2O3 and SiC grind wheel has shown very excellent wear resistance of SiC/MoSi2 composites compared with monolithic MoSi2.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: molybdenum-disilicide;silicon carbide;hot press;reaction sintering.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 19 Jul 2009 07:48
Last Modified: 19 Sep 2010 05:24
URI: http://eprints.iisc.ernet.in/id/eprint/18644

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