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LDEF fiber-composite materials characterizationDegradation of a number of fiber/polymer composites located on the leading and trailing surfaces of LDEF where the atomic oxygen (AO) fluences ranged from 10(exp 22) to 10(exp 4) atoms/cm(sup 2), respectively, was observed and compared. While matrices of the composites on the leading edge generally exhibited considerable degradation and erosion-induced fragmentation, this 'asking' process was confined to the near surface regions because these degraded structures acted as a 'protective blanket' for deeper-lying regions. This finding leads to the conclusion that simple surface coatings can significantly retard AO and other combinations of degrading phenomena in low-Earth orbit. Micrometeoroid and debris particle impacts were not a prominent feature on the fiber composites studied and apparently do not contribute in a significant way to their degradation or alteration in low-Earth orbit.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Miglionico, C. J.
(Phillips Lab. Kirtland AFB, NM, United States)
Stein, C.
(Phillips Lab. Kirtland AFB, NM, United States)
Roybal, R. E.
(Phillips Lab. Kirtland AFB, NM, United States)
Murr, L. E.
(Texas Univ. El Paso., United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1993
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. Part 3: Second Post-Retrieval Symposium
Subject Category
Composite Materials
Accession Number
Funding Number(s)
Distribution Limits
Work of the US Gov. Public Use Permitted.
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