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Brazing of Stainless Steel to Yttria-Stabilized Zirconia Using Gold-Based Brazes for Solid Oxide Fuel Cell ApplicationsTwo gold-base active metal brazes (gold-ABA and gold-ABA-V) were evaluated for oxidation resistance to 850 C, and used to join yttria-stabilized zirconia (YSZ) to a corrosion-resistant ferritic stainless steel for possible use in solid oxide fuel cells. Thermogravimetric analysis and optical microscopy and scanning electron microscopy coupled with energy-dispersive spectroscopy were used to evaluate the braze oxidation behavior, and microstructure and composition of the YSZ/braze/steel joints. Both gold-ABA and gold-ABA-V exhibited nearly linear oxidation kinetics at 850 C, with gold-ABA-V showing faster oxidation than gold-ABA. Both brazes produced metallurgically sound YSZ/steel joints due to chemical interactions of Ti and V with the YSZ and steel substrates.
Document ID
20070018063
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
Authors
Singh, M.
(Ohio Aerospace Inst. Cleveland, OH, United States)
Shpargel, T. P.
(ASRC Aerospace Corp. Cleveland, OH, United States)
Asthana, R.
(Wisconsin-Stout Univ. Menomonie, WI, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Publication Information
Publication: International Journal of Applied Ceramic Tecnology
Publisher: Blackwell Publishing Ltd.
Volume: 4
Issue: 2
Subject Category
Metals And Metallic Materials
Funding Number(s)
CONTRACT_GRANT: NNC06ZA12A
Distribution Limits
Public
Copyright
Other

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