초록 ▼

Composite flexible multilayer insulation systems (MLI) were evaluated for thermal performance and compared with currently used fibrous silica (baseline) insulation system. The systems described are multilayer insulations consisting of alternating layers of metal foil and scrim ceramic cloth or vacuu

Composite flexible multilayer insulation systems (MLI) were evaluated for thermal performance and compared with currently used fibrous silica (baseline) insulation system. The systems described are multilayer insulations consisting of alternating layers of metal foil and scrim ceramic cloth or vacuum metallized polymeric films quilted together using ceramic thread. A silicon carbide thread for use in the quilting and the method of making it are also described. These systems are useful to provide lightweight thermal insulation for a variety of uses, particularly on the surface of aerospace vehicles subject to very high temperatures during flight.

대표청구항

A composite multilayered flexible blanket insulation comprising top and bottom fabric layers, insulation layers, reflective radiation shield layers and spacers all secured using a ceramic thread, wherein said blanket insulation is able to withstand a heat flux up to 34 BTU/ft2-sec.

A composite multilayered flexible blanket insulation comprising top and bottom fabric layers, insulation layers, reflective radiation shield layers and spacers all secured using a ceramic thread, wherein said blanket insulation is able to withstand a heat flux up to 34 BTU/ft2-sec.