Composite multilayer insulations for thermal protection of aerospace vehiclesComposite flexible multilayer insulation systems (MLI), consisting of alternating layers of metal foil and scrim cloth or insulation quilted together using ceramic thread, were evaluated for thermal performance and compared with a silica fibrous (baseline) insulation system. The systems studied included: (1) alternating layers of aluminoborosilicate (ABS) scrim cloth and stainless steel foil, with silica, ABS, or alumina insulation; (2) alternating layers of scrim cloth and aluminum foil, with silica or ABS insulation; (3) alternating layers of aluminum foil and silica or ABS insulation; and (4) alternating layers of aluminum-coated polyimide placed on the bottom of the silica insulation. The MLIs containing aluminum were the most efficient, measuring as little as half the backface temperature increase of the baseline system.
Document ID
19900036632
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kourtides, Demetrius A. (NASA Ames Research Center Moffett Field, CA, United States)
Pitts, William C. (NASA Ames Research Center Moffett Field, CA, United States)