Hybrid dual fiber matrix densified structure and method for maki

Details Hybrid dual fiber matrix densified structure and method for maki Hybrid dual fiber matrix densified structure and method for maki

1984-08-09

1995-06-13

Nelson, Peter A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428549, 428301, B32B 512

Patent

active

054241090

ABSTRACT:
A high strength structure is formed of an inner layer of one material fibers and an interbraided outer layer of second material fibers so that there is a hybrid dual fiber interface or zone, and the layers are then separately sequentially densified with compositions by chemical vapor deposition to provide a tailored, highly oxidative resistant interior with a high strength exterior. The inner fibers may be silicon carbide while the outer fibers are graphite, and the inner densification compositions are carbides, nitrides and carbon, with the outer densification compositions being silicon carbide or graphite. The structure is useful for combustion chambers, engine components and high pressure corrosive chemical vessels.

REFERENCES:
patent: 4064305 (1977-12-01), Wallin
patent: 4410394 (1983-10-01), Stalcup
patent: 4435455 (1984-03-01), Prewo et al.
patent: 4467838 (1984-08-01), Rheaume
patent: 4485179 (1984-11-01), Brennan et al.
patent: 4507354 (1985-03-01), Ishikawa et al.

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