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Reaction Sintering of Molybdenum Disilicide Based Composites

Published online by Cambridge University Press:  21 February 2011

Martin W. Weiser ,
Sherisse R. Smelser  and
John J. Petrovic
Martin W. Weiser
Affiliation:
Mechanical Engineering Department and Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
Sherisse R. Smelser
Affiliation:
Mechanical Engineering Department and Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
John J. Petrovic
Affiliation:
Group MST-4, Los Alamos National Laboratory, Los Alamos, NM 87475
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Abstract

Pressureless reaction sintering was investigated as a fabrication method for composites composed of a MoSi 2 based matrix with up to 20 vol% SiC reinforcement. Up to 10 vol% of a number of reactants including Mo+2Si, CrSi2, and Cr+2Si were utilized. In nearly all cases the reactants greatly enhanced pure matrix densification at temperatures as low as 1400°C. The composites containing SiC reinforcement did not densify nearly as well. For some reactants it appears that an adverse reaction occurred between the SiC and the additives resulting in swelling.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 53
Copyright
Copyright © Materials Research Society 1990

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