NASA/TP-3595, Kamenetzky, R.R. and Vaughn, J.A. and Finckenor, M.M. and Linton, R.C., Evaluation of Thermal Control Coatings and Polymeric Materials Exposed to Ground Simulated Atomic Oxygen and Vacuum Ultraviolet Radiation, Materials and Processes Laboratory, Science and Engineering Directorate. NASA Marshall Space Flight Center, AL 35812, December 1995, pp. 49, Format(s): PDF 6488k |
Numerous thermal control and polymeric samples with potential International Space Station applications were evaluated for atomic oxygen and vacuum ultraviolet radiation effects in the Princeton Plasma Physics Laboratory 5 eV Neutral Atomic Oxygen Facility and in the MSFC Atomic Oxygen Drift Tube System. Included in this study were samples of various anodized aluminum samples, ceramic paints, polymeric materials, and beta cloth, a Teflon-impregnated fiberglass cloth. Aluminum anodizations tested were black duranodic,
chromic acid anodize, and sulfuric acid anodize. Paint samples consisted of an inorganic glassy black paint and Z-93 white paint made with the original PS7 binder and the new K2130 binder. Polymeric samples evaluated included bulk Halar, bulk PEEK, and silverized FEP Teflon. Aluminized and nonaluminized Chemfab 250 beta cloth were also exposed.
Samples were evaluated for changes in mass, thickness, solar absorptance, and infrare emittance. In addition to material effects, an investigation was made comparing diffuse
reflectance/solar absorptance measurements made using a Beckman DK2 spectroreflectometer and like measurements made using an AZ Technology-developed laboratory portable spectroreflectometer.
| Keywords: | space environment, atomic oxygen, vacuum ultraviolet radiation, thermal control, anodized aluminum |
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| CASI Document ID Number: | 96N29631 |
| Subjects: | Astronautics: Spacecraft Design, Testing And Performance |
| ID Code: | 302 |
| Deposited On: | 27 June 2002 |