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Brazing of Carbon Carbon Composites to Cu-clad Molybdenum for Thermal Management ApplicationsAdvanced carbon carbon composites were joined to copper-clad molybdenum (Cu/Mo) using four active metal brazes containing Ti (Cu ABA, Cusin-1 ABA, Ticuni, and Ticusil) for potential use in thermal management applications. The brazed joints were characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and Knoop microhardness measurements across the joint region. Metallurgically sound C-C/Cu/Mo joints, devoid of interfacial cracks formed in all cases. The joint interfaces were preferentially enriched in Ti, with Cu ABA joints exhibiting the largest interfacial Ti concentrations. The microhardness measurements revealed hardness gradients across the joint region, with a peak hardness of 300-350 KHN in Cusin-1 ABA and Ticusil joints and 200-250 KHN in Cu ABA and Ticuni joints, respectively.
Document ID
20070018033
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
Authors
Singh, M.
(Ohio Aerospace Inst. Cleveland, OH, United States)
Asthana, R.
(Wisconsin-Stout Univ. Menomonie, WI, United States)
Shpargel, T> P.
(QSS Group, Inc. Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Publication Information
Publication: Materials Science and Engineering A
Publisher: Elsevier
Volume: 452-453
ISSN: 0921-5093
Subject Category
Composite Materials
Funding Number(s)
WBS: WBS 22-973-80-50
CONTRACT_GRANT: NNC06ZA12A
Distribution Limits
Public
Copyright
Other

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