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Proceedings Paper

Composite materials for precision space reflector panels
Author(s): Stephen S. Tompkins; Joan G. Funk; David E. Bowles; Timothy W. Towell; John W. Connell
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Paper Abstract

One of the critical technology needs of large precision reflectors for future astrophysical and optical communications satellites lies in the area of structural materials. Results from a materials research and development program at NASA Langley Research Center to provide materials for these reflector applications are discussed. Advanced materials that meet the reflector panel requirements are identified and thermal, mechanical and durability properties of candidate materials after exposure to simulated space environments are compared. Results from analytical studies to define material properties that control laminate properties and reflector deformation are discussed. A parabolic, graphite-phenolic honeycomb composite panel having a surface accuracy of 70.8 microinches RMS and an areal weight of 1.17 lbm/ft2 was fabricated with T50/ERL1962 facesheets, a PAEI thermoplastic surface film, and Al and SiOx coatings.

Paper Details

Date Published: 16 September 1992
PDF: 12 pages
Proc. SPIE 1690, Design of Optical Instruments, (16 September 1992); doi: 10.1117/12.138000
Show Author Affiliations
Stephen S. Tompkins, NASA Langley Research Ctr. (United States)
Joan G. Funk, NASA Langley Research Ctr. (United States)
David E. Bowles, NASA Langley Research Ctr. (United States)
Timothy W. Towell, NASA Langley Research Ctr. (United States)
John W. Connell, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 1690:
Design of Optical Instruments
David M. Aikens; Victor L. Genberg; Gary C. Krumweide; Michael J. Thomas, Editor(s)

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