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Catalytic carbide formation at aluminium-carbon interfacesX-ray photoelectron spectroscopy investigations of the reaction of several monolayer-thick films of aluminum with glassy carbon substrates are presented. The influence of molecular oxygen and water vapor on the rate of reaction is examined. It is concluded that water vapor catalyzed the formation of aluminum carbide from aluminum and carbon by forming active sites which weakened carbon-carbon bonds at the glassy carbon surface, thus assisting their cleavage. The rate of carbide formation for undosed and molecular oxygen-dosed examples was less as neither metallic aluminum nor oxygen-formed alumina could bond to the carbon atom with sufficient strength to dissociate it quickly.
Document ID
19900060026
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Maruyama, B.
(Texas Univ. Austin, TX, United States)
Rabenberg, L.
(Texas, University Austin, United States)
Ohuchi, F. S.
(Du Pont de Nemours and Co. Wilmington, DE, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1990
Publication Information
Publication: Journal of Materials Science Letters
Volume: 9
ISSN: 0261-8028
Subject Category
Composite Materials
Accession Number
90A47081
Funding Number(s)
CONTRACT_GRANT: NAG9-205
Distribution Limits
Public
Copyright
Other

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