초록 ▼

A refractory composite structure is formed which comprises a ductile refractory metallic layer with a roughened surface which is tightly bonded to a refractory composite structural shell. The roughened surface is preferably dendritic in form and produced by chemical vapor deposition techniques. The

A refractory composite structure is formed which comprises a ductile refractory metallic layer with a roughened surface which is tightly bonded to a refractory composite structural shell. The roughened surface is preferably dendritic in form and produced by chemical vapor deposition techniques. The refractory composite structural shell is preferably a carbon-carbon composite formed by applying a carbon filament preform to the roughened surface, infiltrating the preform with a carbon matrix precursor, and carbonizing the precursor.

대표청구항 ▼

[ What is claimed is:] [1.] A process for forming a high temperature high strength corrosion resistant hollow composite structure comprising:Forming a layer of ductile refractory metal having radially inner and radially outer sides the surface of said layer on said radially outer side having a rough

[ What is claimed is:] [1.] A process for forming a high temperature high strength corrosion resistant hollow composite structure comprising:Forming a layer of ductile refractory metal having radially inner and radially outer sides the surface of said layer on said radially outer side having a roughness of from approximately 1 to 20 microns, said roughness being substantially formed by a dendritic growth of said refractory metal; andForming a structural carbon-composite shell in situ against and tightly bonded to said surface on said radially outer side of said layer.