SPACECRAFT SMART THERMAL RADIATOR BASED ON THERMOCHROMIC COATINGS DEPOSITED ON ALUMINUM PANEL

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A thermal radiator is provided for an aluminum surface comprising a coating of earth-doped manganese over a layer of oxidized aluminum. In a preferred embodiment, the thermal radiator has the formula LA1-xSrxMnO3. In a more preferred embodiment, the thermal radiator has the formula La0.7 Sr0.3 MnO3, La0.825Sr0.175 MnO3, or La0.9 Sr0.1 MnO3 Further provided is a thermal radiator of the invention having a germanium overcoating. Methods of producing a thermal radiator for an aluminum surface are also provided.