| タイトル | Radiation Induced Degradation of the White Thermal Control Paints Z-93 and Z-93P |
| 本文（外部サイト） | http://hdl.handle.net/2060/19970002925 |
| 著者（英） | Zwiener, J. M.; Wertz, G. E.; Finckenor, M. M.; Meshishnek, M. J.; Kamenetzky, R. R.; Edwards, D. L.; Vaughn, J. A. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1996-10-01 |
| 言語 | eng |
| 内容記述 | This paper details a comparison analysis of the zinc oxide pigmented white thermal control paints Z-93 and Z-93P. Both paints were simultaneously exposed to combined space environmental effects and analyzed using an in-vacuo reflectance technique. The dose applied to the paints was approximately equivalent to 5 years in a geosynchronous orbit. This comparison analysis showed that Z-93P is an acceptable substitute for Z-93. Irradiated samples of Z-93 and Z-93P were subjected to additional exposures of ultraviolet (UV) radiation and analyzed using the in-vacuo reflectance technique to investigate UV activated reflectance recovery. Both samples showed minimal UV activated reflectance recovery after an additional 190 equivalent sun hour (ESH) exposure. Reflectance response utilizing nitrogen as a repressurizing gas instead of air was also investigated. This investigation found the rates of reflectance recovery when repressurized with nitrogen are slower than when repressurized with air. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | 97N11712
NASA-TM-108518
NAS 1.15:108518 |
| 権利 | No Copyright |
