Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1994-03-14
1996-07-16
Withers, James D.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
244121, 244133, 428245, 428289, 428290, 4283073, 4283105, 4283139, 428902, 501 95, B64C 100, B32B 702, B32B 514, C04B 3503
Patent
active
055365620
ABSTRACT:
A low-density resin impregnated ceramic article advantageously employed as a structural ceramic ablator comprising a fired preform of ceramic fibers. The fibers of the ceramic preform are coated with an organic resin film. The organic resin can be a thermoplastic resin or a cured thermosetting resin. In one embodiment, the resin is uniformly distributed within the ceramic article. In a second embodiment, the resin is distributed so as to provide a density gradient along at least one direction of the ceramic article. The resin impregnated ceramic article is prepared by providing a fired preform of ceramic fibers; immersing the preform of ceramic fibers in a solution of a solvent and an organic resin infiltrant; and removing the solvent to form a resin film on the ceramic fibers.
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Henline William D.
Hsu Ming-Ta S.
Rasky Daniel J.
Riccitiello Salvatore R.
Tran Huy K.
Miller Guy
The United States of America as represented by the Administrator
Warsh Kenneth L.
Withers James D.
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