Degradation of thermal control coatings by ultraviolet and particle irradiation
Abstract
The degradation of the solar reflection factor was investigated for 10 types of thermal coatings during a simulated 3 year exposure to the space environment of the geosynchronous OTS satellite. The irradiations and measurements were carried out under secondary vacuum conditions at 90 C. A simultaneous exposure to ultraviolet radiation, to 200 keV electrons, and to 40 keV and 150 keV protons was realized. The materials tested were indium oxide conductive coatings, French and American zinc oxide white paints, and conductive black paints. The electrical resistance of the samples was recorded as a function of time.
- Publication:
-
Final Report Office National d'Etudes et de Recherches Aerospatiales
- Pub Date:
- October 1976
- Bibcode:
- 1976oner.rept.....P
- Keywords:
-
- Radiation Effects;
- Space Environment Simulation;
- Thermal Control Coatings;
- Absorptance;
- Degradation;
- Electron Irradiation;
- Ots (Esa);
- Paints;
- Proton Irradiation;
- Reflectance;
- Solar Reflectors;
- Stationary Orbits;
- Ultraviolet Radiation;
- Fluid Mechanics and Heat Transfer