Ceramic matrix composite/organic matrix composite hybrid fire sh

Details Ceramic matrix composite/organic matrix composite hybrid fire sh Ceramic matrix composite/organic matrix composite hybrid fire sh

1996-11-27

1998-09-08

Richter, Johann

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428920, 428921, 428447, 42831111, 4283171, 4283191, 428486, 4282991, 425426, B32B 506, B32B 904, B27N 900, A01J 2702

Patent

active

058043063

ABSTRACT:
The present invention is a ceramic matrix composite/organic matrix composite hybrid fire shield and the methods and processes for fabricating such a hybrid fire shield. The hybrid fire shield is comprised of an organic matrix composite substrate co-bonded with a cured-ceramic matrix composite layer made of a plurality of cured-ceramic matrix composite plies. First, the surface of the organic matrix composite is appropriately prepared to prevent delamination and enable proper bonding between the surface and the ceramic matrix composite layer. Second, the ceramic matrix composite layer is applied to the surface of the organic matrix composite. Next, the organic matrix composite with the applied ceramic matrix composite layer is processed to produce a co-bonded hybrid structure. The ceramic matrix composite layer is intended to be in direct contact with heat and flames. During impingement of the flames and heat, the cured-CMC layer pyrolyzes and converts from a polymeric to a ceramic composite material.

REFERENCES:
patent: 4364991 (1982-12-01), Byrd et al.
patent: 4661398 (1987-04-01), Ellis
patent: 4767656 (1988-08-01), Chee et al.

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