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Effect of Microstructure on the Properties of MoSi2 and its Composites

Published online by Cambridge University Press:  15 February 2011

A. Newman ,
T. Jewett ,
S. Sampath  and
H. Herman
A. Newman
Affiliation:
Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794
T. Jewett
Affiliation:
Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794
S. Sampath
Affiliation:
Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794
H. Herman
Affiliation:
Department of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794
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Abstract

The effects of processing on the microstructure and properties of MoSi2 are examined. A diverse array of samples, processed through a variety of means, were investigated for their microstructural features and indentation fracture behavior. Results from this study indicate that a finely dispersed secondary phase enhances tortuous crack paths, crack branching, and microcracking, thereby improving fracture toughness. The effects of substitutional alloying (Re, Al) and composite additions (SiC) have also been investigated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 460: Symposium Z – High-Temperature Ordered Intermetallic Alloys VII , 1996 , 593
Copyright
Copyright © Materials Research Society 1997

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