High temperature insulation barrier composite

Details High temperature insulation barrier composite High temperature insulation barrier composite

1988-09-30

1989-10-31

Rutledge, L. DeWayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Foil or filament smaller than 6 mils

428623, 428627, 428632, 428666, 428680, 244158A, B32B 1504, F16L 5900

Patent

active

048776890

ABSTRACT:
A composite material suitable for providing insulation for the nozzle structure of the Space Shuttle and other similar surfaces is disclosed which comprises an outer skin layer of nickel chromium and an interleaved inner region comprising a top layer of nickel chromium foil which acts as a primary convective shield, at least two layers of alumina batting adjacent to layers of silicon carbide fabric, and an additional layer of nickel chromium foil to be used as a secondary convective shield. The composite is particularly advantageous for use as nozzle insulation because of its ability to withstand high reentry temperatures, its flexibility, oxidation resistance, low conductivity, and light weight.

REFERENCES:
patent: 4639399 (1987-01-01), Aprigliano
patent: 4804571 (1989-02-01), Jouffreau

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