High Thermal Capacitance Multilayer Thermal Insulation.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A high thermal capacitance multilayer thermal insulation structure is described, which is of particular utility for thermal protection against exposure to alternate high and low radiant heat flux levels, and which comprises a laminate of alternate metal foil or metallized plastic foil layers and layers of material which are characterized by phase change upon the absorption of heat, the foil layers providing high reflectance and reradiation of the heat flux, and the phase change layers providing for absorption and storage of heat during periods of heat flux for reradiation during periods of heat flux.
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