초록 ▼

A novel materials technology has been developed and demonstrated for providing a high modulus composite material for use to 1000.degree. F. and above. This material can be produced at 5-20% of the cost of refractory materials, and has higher structural properties. This technology successfully resolv

A novel materials technology has been developed and demonstrated for providing a high modulus composite material for use to 1000.degree. F. and above. This material can be produced at 5-20% of the cost of refractory materials, and has higher structural properties. This technology successfully resolves the problem of "thermal shock" or "ply lift," which limits traditional high temperature laminates (such as graphite/polyimide and graphite/phenolic) to temperatures of 550-650.degree. F. in thicker (0.25" and above) laminates. The technology disclosed herein is an enabling technology for the nose for the External Tank (ET) of the Space Shuttle, and has been shown to be capable of withstanding the severe environments encountered by the nose cone through wind tunnel testing, high temperature subcomponent testing, and full scale structural, dynamic, acoustic, and damage tolerance testing.

대표청구항 ▼

[ What is claimed as invention is:] [1.] A high performance structural laminate composite material for use in high temperature applications, consisting essentially of resin-impregnated fiber, the resin-impregnated fiber consisting essentially of:(a) 30-80% by weight fiber; and(b) 20-70% by weight cu

[ What is claimed as invention is:] [1.] A high performance structural laminate composite material for use in high temperature applications, consisting essentially of resin-impregnated fiber, the resin-impregnated fiber consisting essentially of:(a) 30-80% by weight fiber; and(b) 20-70% by weight cured resin,(c) the composite material having an across-ply permeability having a Darcy's constant of at least 10.sup.-15 cm.sup.2.