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Compatibility of Fe–40Al with various fibers

Published online by Cambridge University Press:  31 January 2011

S. L. Draper
Affiliation:
Lewis Research Center, Cleveland, Ohio 44135
D. J. Gaydosh
Affiliation:
Lewis Research Center, Cleveland, Ohio 44135
M. V. Nathal
Affiliation:
Lewis Research Center, Cleveland, Ohio 44135
A. K. Misra
Affiliation:
Sverdrup Technology, Inc., NASA Lewis Research Center Group, Cleveland, Ohio 44135
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Abstract

Chemical reaction can occur at the fiber/matrix interface of intermetallic matrix composites, leading to a degradation of mechanical properties. Fe–40Al matrix composites were fabricated using SiC, B, W, Mo-base, and Al2O3 fibers. Composite samples were heat treated up to 1500 K to study the reaction kinetics, and reaction rates were determined from reaction zone thickness measurements. The Al2O3 and W fibers were found to be compatible with the Fe–40Al matrix, while the Mo-based fibers reacted moderately and the B and SiC fibers reacted severely. Experimental results are compared to theoretical thermodynamic predictions.

Type
Articles
Copyright
Copyright © Materials Research Society 1990

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