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Surface characterization of selected LDEF tray clampsThe surface characterization of chromic acid anodized 6061-T6 aluminum alloy tray clamps has shown differences in surface chemistry depending upon the position on the Long Duration Exposure Facility (LDEF). Water contact angle results showed no changes in wettability of the tray clamps. The overall surface topography of the control, trailing edge(E3) and leading edge(D9) samples was similar. The thickness of the aluminum oxide layer for all samples determined by Auger depth profiling was less than one micron. X-ray photoelectron spectroscopy (XPS) analysis of the tray clamps showed significant differences in the surface composition. Carbon and silicon containing compounds were the primary contaminants detected.
Document ID
19930019082
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cromer, T. F. (Virginia Polytechnic Inst. and State Univ. Blacksburg., United States)
Grammer, H. L. (Virginia Polytechnic Inst. and State Univ. Blacksburg., United States)
Wightman, J. P. (Virginia Polytechnic Inst. and State Univ. Blacksburg., United States)
Young, Philip R. (NASA Langley Research Center Hampton, VA, United States)
Slemp, Wayne S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1993
Publication Information
Publication: LDEF: 69 Months in Space. Part 3: Second Post-Retrieval Symposium
Subject Category
Metallic Materials
Accession Number
93N28271
Funding Number(s)
CONTRACT_GRANT: NAG1-1186
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930019065Collected WorksLDEF: 69 Months in Space. Part 3: Second Post-Retrieval Symposium
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