Adjustable high emittance gap filler

Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature

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102289, 244121, 244158A, 244160, 428 49, 428192, 428241, 428242, 428245, 428251, 428257, 428260, 428266, 428447, 428448, B32B 2302, F42B 1100

Patent

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043083099

ABSTRACT:
A flexible, adjustable refractory filler (1) is disclosed for filling gaps between ceramic tiles (10, 11) forming the heat shield of a space shuttle vehicle, to protect its aluminum skin (20) during atmospheric re-entry. The easily installed and replaced filler (1) consists essentially of a strip of ceramic cloth (3) coated, at least along both its longitudinal edges (4, 5), with a room temperature vulcanizable silicone rubber compound with a high emittance colored pigment. The filler may have one or more layers (2, 3), as the gap width requires. Preferred materials are basket-weave aluminoborosilicate cloth, and a rubber compounded with silicon tetraboride as the emittance agent and finely divided borosilicate glass containing about 7.5% B.sub.2 O.sub.3 as high temperature binder. The filler cloth strip or tape is cut to proper width and length, inserted into the gap, and fastened with previously applied drops of silicone rubber adhesive.

REFERENCES:
patent: 2815300 (1957-12-01), Smith
patent: 3920339 (1975-11-01), Fletcher
patent: 4124732 (1978-11-01), Leger
patent: 4137355 (1979-01-01), Heaps et al.
patent: 4223064 (1980-09-01), Bally et al.

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