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Effects of the LDEF environment on the Ag/FEP thermal blanketsThis presentation was made by Francois Levadou at the NASA Langley Research Center LDEF materials workshop, November 19-22, 1991. It represents the results to date on the examination of silvered teflon thermal blankets primarily from the Ultra-heavy Cosmic Ray Experiment and also from the blanket from the Park Seed Company experiment. ESA/ESTEC and Boeing conducted a number of independent measurements on the blankets and in particular on the exposed fluorinated ethylene-propylene (FEP) layer of the blankets. Mass loss, thickness, and thickness profile measurements have been used by ESA, Boeing, and NASA LeRC to determine recession and average erosion yield under atomic oxygen exposure. Tensile strength and percent elongation to failure data, surface characterization by ESCA, and SEM images are presented. The Jet Propulsion Laboratory analysis of vacuum radiation effects is also presented. The results obtained by the laboratories mentioned and additional results from the Aerospace Corporation on samples provided by Boeing are quite similar and give confidence in the validity of the data.
Document ID
19930003597
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Levadou, Francois
(European Space Agency. European Space Research and Technology Center ESTEC, Noordwijk, Netherlands)
Pippin, H. Gary
(Boeing Co. Seattle, WA., United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1992
Publication Information
Publication: NASA. Langley Research Center, LDEF Materials Workshop 1991, Part 1
Subject Category
Nonmetallic Materials
Accession Number
93N12785
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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