Computer Science – Performance
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soen.confq..19d&link_type=abstract
Presented at the 1995 International Solar Energy Conference, Lahaina, HI, 19-24 Mar. 1995; sponsored by ASME, JSME and JSES
Computer Science
Performance
Durability, Earth Orbital Environments, Impact Damage, Oxygen Atoms, Solar Generators, Spacecraft Contamination, Spacecraft Power Supplies, Thermal Fatigue, Ultraviolet Radiation, Ceramics, Embrittlement, Erosion, Hubble Space Telescope, Long Duration Exposure Facility, Micrometeoroids, Organic Materials, Protective Coatings, Space Debris, Teflon (Trademark)
Scientific paper
Space solar power systems for use in the low Earth orbit (LEO) environment experience a variety of harsh environmental conditions. Materials used for solar power generation in LEO need to be durable to environmental threats such as atomic oxygen, ultraviolet (UV) radiation, thermal cycling, and micrometeoroid and debris impact. Another threat to LEO solar power performance is due to contamination from other spacecraft components. This paper gives an overview of these LEO environmental issues as they relate to space solar power system materials. Issues addressed include atomic oxygen erosion of organic materials, atomic oxygen undercutting of protective coatings, UV darkening of ceramics, UV embrittlement of Teflon, effects of thermal cycling on organic composites, and contamination due to silicone and organic materials. Specific examples of samples from the Long Duration Exposure Facility (LDEF) and materials returned from the first servicing mission of the Hubble Space Telescope (HST) are presented. Issues concerning ground laboratory facilities which simulate the LEO environment are discussed along with ground-to-space correlation issues.
Banks Bruce A.
Degroh Kim K.
Smith Daniela C.
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