Testing And Optimization Of Electrically Conductive Spacecraft Coatings

Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723894626
Total Pages : 62 pages
Book Rating : 4.8/5 (946 download)

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Download or read book Testing and Optimization of Electrically Conductive Spacecraft Coatings written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-21 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report discussing the work done for the Space Environments and Effects (SEE) Program. It discusses test chamber design, coating research, and test results on electrically thermal control coatings. These thermal control coatings are being developed to have several orders of magnitude higher electrical conductivity than most available thermal control coatings. Most current coatings tend to have a range in surface resistivity from 1,011 to 1,013 ohms/sq. Historically, spacecraft have had thermal control surfaces composed of dielectric materials of either polymers (paints and metalized films) or glasses (ceramic paints and optical solar reflectors). Very seldom has the thermal control surface of a spacecraft been a metal where the surface would be intrinsically electrically conductive. The poor thermal optical properties of most metals have, in most cases, stopped them from being used as a thermal control surface. Metals low infrared emittance (generally considered poor for thermal control surfaces) and/or solar absorptance, have resulted in the use of various dielectric coatings or films being applied over the substrate materials in order to obtain the required optical properties.Mell, R. J. and Wertz, G. E. and Edwards, D. L. (Technical Monitor)Marshall Space Flight CenterCONTROL SURFACES; ELECTRICAL RESISTIVITY; TEMPERATURE CONTROL; THERMAL CONTROL COATINGS; DIELECTRICS; CERAMICS