Thermostructural composite structure with a compositional gradient and its manufacturing process
AssigneeSnecma Propulsion Solide
InventorsJacques Thebault, Laurent David
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Abstract
Thermostructural composite structure having a compositional gradient, formed from a porous core (5) made of a refractory having a pore volume content of greater than or equal to 80%. The core (5) lies between two intermediate layers (6a, 6b) comprising the carbon fiber reinforcement, densified by a matrix composed of the carbon phase and of a ceramic phase, and a refractory solid filler. Two monolithic ceramic shells (7a, 7b) cover the intermediate layers in order to give stiffness to the entire structure.
Claims12
A thermostructural composite structure having a density gradient, formed from a porous core made of a refractory having a pore volume content of greater than or equal to 80%, said core lying between two intermediate layers comprising part of the refractory of the porous core and a ceramic phase and a refractory solid filler, and two external shells made of a ceramic covering said intermediate layers.
Dependencies are inferred from the claim text.