Novel Materials for Spacecraft Thermal Control Coatings Technologies

Physical Sciences Inc. (PSI) proposes to develop innovative variable-reflectance polymeric devices with on-demand controllable solar absorptivity (alpha) and IR emissivity (epsilon). The goal of the program (Phase I and II) is to design and demonstrate aprototype device with broadly variable (alpha/epsilon). While there are many potential applications, we will focus on spacecraft thermal control. During the Phase I program we will develop concepts and a model of utility for assessing the electro-opticalproperties of the concepts. Several devices will be fabricated and utilized for proof-of-concept experiments. A detailed Phase II program plan will also be developed. Successful demonstration of advanced thermal control devices will have a verysignificant impact on space systems designs. The system we envision will reduce the thermal cycling of the interior of spacecraft. This will significantly extend the life of components and allow a broader range of COTS components to be used. The endresult will be more cost effective, longer life satellites.