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Patterns of discoloration and oxidation by direct and scattered fluxes, especially oxygen on siliconA number of interesting discoloration patterns are clearly evident on M0002-1 which resides on three faces of LDEF: front face, rear face, and earth face. Most interesting is the pattern of blue oxidation on polished single crystal silicon apparently produced by once-scattered ram oxygen atoms along the earth face. Most of the other patterns are seen in the Thermal Control Paint. Also, severe oxidation of CR-39 polycarbonate occurred on the front face of LDEF, as expected. A complete explanation for the patterns has not yet been obtained.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Frederickson, A. R.
(Air Force Geophysics Lab. Hanscom AFB, MA., United States)
Filz, R. C.
(Air Force Geophysics Lab. Hanscom AFB, MA., United States)
Rich, F. J.
(Air Force Geophysics Lab. Hanscom AFB, MA., United States)
Sagalyn, Paul L.
(Army Materials Technology Lab. Watertown, MA., United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
Nonmetallic Materials
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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