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Spray Forming of MoSi2 and MoSi2-Based Composites

Published online by Cambridge University Press:  26 February 2011

R. Tiwari,
H. Herman and
S. Sampath
R. Tiwari
Affiliation:
Dept. of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794–2275
H. Herman
Affiliation:
Dept. of Materials Science and Engineering, State University of New York, Stony Brook, NY 11794–2275
S. Sampath
Affiliation:
GTE Products Corporation, Hawes Street, Towanda PA 18848
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Abstract

Vacuum plasma spraying has been used to fabricate dense MoSi2 and TiB2-reinforced MoSi2-based composites. The spray-formed deposits have high hardness and fracture toughness as compared to that achieved by other processing techniques. Annealing of the spray formed MoSi2 leads to a decrease in hardness and an increase in fracture toughness. Reinforcement with TiB2 leads to toughening and strengthening of the spray-formed MoSi2.

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References

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