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Thermal Control Surfaces Experiment (TCSE) materials analysisMaterials on the Thermal Control Surfaces Experiment (TCSE) underwent changes in their properties during the 5.8 years of exposure to the combined space environment. The analysis of these materials is continuing and current results are discussed. Some materials were significantly degraded such as silver Teflon, S13GLO, and Z302; while others such as Z93 and YB71 were stable. Time dependent flight data is provided, along with preflight and postflight measurements. Results are compared with other experiments, demonstrating the atomic oxygen (AO) ram effect. Atomic oxygen texturing of silver Teflon varies with incident angle. Even indirect exposure to atomic oxygen appears to be involved with surface texturing on the interior of the TCSE. Localized contamination occurred at discrete locations both inside and on exterior surfaces. Most of the visible deposits were the result of the classical photo-enhanced contamination deposition. The synergism of combined space environmental effects is demonstrated by the specific localization of contamination caused by photo-enhanced deposition versus AO removal. Optical degradation measurements of these contaminated areas, utilizing a new portable reflectometer, are presented.
Document ID
19920018031
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wilkes, Donald R.
(AZ Technology Huntsville, AL., United States)
Miller, Edgar R.
(AZ Technology Huntsville, AL., United States)
Zwiener, James M.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Mell, Richard J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1992
Publication Information
Publication: NASA. Langley Research Center, Second LDEF Post-Retrieval Symposium Abstracts
Subject Category
Composite Materials
Accession Number
92N27274
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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