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Investigation of reaction kinetics and interfacial phase formation in Ti3Al + Nb compositesTitanium aluminide metal matrix composites are prominent materials systems being considered for high temperature aerospace applications. One of the major problems with this material is the reactivity between existing reinforcements and the matrix after prolonged thermal exposure. This paper presents results from an investigation of reaction kinetics between Ti-14Al-21Nb (wt pct) and SCS-6 fibers and SiC fibers with surface coatings of TiB2, TiC, TiN, W, and Si. Microstructural evaluation of the reaction layers as well as matrix regions around the fibers is presented.
Document ID
19920050964
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wawner, F. E.
(NASA Langley Research Center Hampton, VA, United States)
Gundel, D. B.
(Virginia, University Charlottesville, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: SAMPE Quarterly
Volume: 23
ISSN: 0036-0821
Subject Category
Composite Materials
Accession Number
92A33588
Funding Number(s)
CONTRACT_GRANT: NAG1-7454
Distribution Limits
Public
Copyright
Other

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