Evaluation of Selected Thermal Control Coatings for Long-life Space Structures PDF Download
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Author: Louis A. Teichman
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Author: Louis A. Teichman
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
Author: Louis A. Teichman
Publisher:
ISBN:
Category : Carbon composites
Languages : en
Pages : 20
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Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792703287
Category :
Languages : en
Pages : 34
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Book Description
Graphite-reinforced resin matrix composites are being considered for spacecraft structural applications because of their light weight, high stiffness, and lower thermal expansion. Thin protective coatings with stable optical properties and the proper ratio of solar absorption (alpha sub s) to thermal emittance (epsilon) minimize orbital thermal extremes and protect these materials against space environment degradation. Sputtered coatings applied directly to graphite/epoxy composite surfaces and anodized coatings applied to thin aluminum foil were studied for use both as an atomic oxygen barrier and as thermal control coatings. Additional effort was made to develop nickel-based coatings which could be applied directly to composites. These coating systems were selected because their inherent tenacity made them potentially more reliable than commercial white paints for long-life space missions. Results indicate that anodized aluminum foil coatings are suitable for tubular and flat composite structures on large platforms in low Earth orbit. Anodized foil provides protection against some elements of the natural space environment (atomic oxygen, ultraviolet, and particulate radiation) and offers a broad range of tailored alpha sub s/epsilon. The foil is readily available and can be produced in large quantities, while the anodizing process is a routine commercial technique. Teichman, Louis A. and Slemp, Wayne S. and Witte, William G., Jr. Langley Research Center NASA-TM-4319, L-16930, NAS 1.15:4319 RTOP 506-43-21...
Author: United States. Superintendent of Documents
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Category : Government publications
Languages : en
Pages : 1072
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February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1556
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 296
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1830
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ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 368
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 360
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 368
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