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A set of environmental tests were performed in order to validate the coating resistance and performance stability in space. The tests included random vibration, thermal shock, and accelerated aging. ...The experimental environmental test results indicate no significant change in the emittance tuneability,morphology or mass of the SRD coating. MPB's passive thin-film SRD can be applied to Al thermal radiators as a direct replacement for the existing OSR (optical second-reflector) radiator tiles with a net added mass under 100 gm/m2 but with the added benefits of dynamic variation in the thermal radiation to space to significantly improve the thermal stability of the spacecraft for varying operating conditions at a significant mass and power savings relative to traditional techniques.

A set of environmental tests was performed in order to validate the coating resistance and performance stability in space for a single layer SRD, including extended thermal cycling and thermal shock testing.