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Initial Evaluation of Continuous Fiber Reinforced NiAl Composites

Published online by Cambridge University Press:  21 February 2011

R. D. Noebe ,
R. R. Bowman  and
J. I. Eldridge
R. D. Noebe
Affiliation:
NASA Lewis Research Center, M.S. 49-3, Cleveland, OH 44135
R. R. Bowman
Affiliation:
NASA Lewis Research Center, M.S. 49-3, Cleveland, OH 44135
J. I. Eldridge
Affiliation:
Sverdrup Technology, Inc., NASA Lewis Research Center Group
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Abstract

NiAl is being evaluated as a potential matrix material as part of an overall program to develop and understand high-temperature structural composites. Currently, continuous fiber composites have been fabricated by the powder cloth technique incorporating either W(218) or single crystal Al2O3 fibers as reinforcements in both binary NiAl and a solute strengthened NiAl(.05 a% Zr) matrix. Initial evaluation of these composite systems have included: fiber push-out testing to measure matrix/fiber bond strengths, bend testing to determine strength as a function of temperature and composite structure (e.g. fiber volume fraction and number of fiber plies), and thermal cycling to establish the effect of matrix and fiber properties on composite life. The effect of matrix/fiber bond strength and matrix strength on several composite properties will be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 323
Copyright
Copyright © Materials Research Society 1990

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