Impact of the Reflective Layer Thickness on Absorptive Capacity and Emission Coefficient in Thermal Control Coatings

Various types of thermal regulating coating TRP K-208 Cf are used in the systems of automatic spacecraft thermal mode provision. The elements of TRP K-208 Cf, investigated in this work, belong to the class of “solar reflector” and are designed to protect ASC from excessive solar radiation, while at the same time dissipating excessive heat into the surrounding space. The elements of the thermal control coating are plates made of radiation-resistant glass of K-208 grade with step-by-step coatings on the back side. Within the framework of the research samples with different coating thickness and material of the reflecting layer were made. The article is devoted to the study of the influence of changing the mode of coating application and the thickness of the reflecting layer of the thermoregulating coating on the thermo-optical characteristics of the elements.