An injection element (10) for a gas injection system (1) inside a regenerator of a fluid catalytic cracking unit, said injection element defining a flow passage (12) and being arranged so as to be able to be fastened to a support (11) so that said flow passage opens on one side into a cavity and on the other side into a fluidized catalyst bed, characterized in that said injection element is made of ceramic material.

A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.

A method of fabricating a ceramic component includes hot pressing a composite component with a glass powder/filler cover mixture to form a consolidated glass-based coating on the composite component.

A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.

A method of fabricating a part made of ceramic matrix composite material, the method includes fabricating the part by forming a ceramic matrix in the pores of a fiber structure, the ceramic matrix being formed by self propagating high temperature synthesis from a powder composition present in the pores of the fiber structure,

An injection element (10) for a gas injection system (1) inside a regenerator of a fluid catalytic cracking unit, said injection element defining a flow passage (12) and being arranged so as to be able to be fastened to a support (11) so that said flow passage opens on one side into a cavity and on the other side into a fluidized catalyst bed, characterized in that said injection element is made of ceramic material.

A turbine engine part forming a compressor stator or a turbine nozzle and including an inner shroud, an outer shroud, and vanes extending substantially radially between the inner and outer shrouds and being secured thereto. The part is made of composite material and is obtained by densifying a fiber preform with a matrix. The fiber preform includes a set of yarns extending continuously along a path passing longitudinally along the preform portions of at least two consecutive vanes by passing through the inner shroud preform portion and the outer shroud preform portion, and the woven fiber reinforcement yarns extends continuously in the circumferential direction along an inner shroud segment and along an outer shroud segment between which the consecutive vanes extend.

A refractory material can include a refractory filament and an interface coating applied to the refractory filament. The interface coating can include a refractory metal or semi-metal oxide, metal or semi-metal nitride, metal or semi-metal carbide, metal or semi-metal oxynitride, metal or semi-metal carbonitride, and/or metal or semi metal oxycarbide formed by depositing an organometallic precursor onto the refractory filament by supercritical fluid deposition and heat treating the organometallic precursor in the presence of an atmospheric condition so that the organometallic precursor forms an interface coating that is an oxidized, pyrolyzed, or carbidized form of the organometallic precursor and is present at a surface and beneath the surface of the refractory filament.

Brake disks with integrated heat sink are provided. Brake disk includes a fiber-reinforced composite material and an encapsulated heat sink material impregnated into the fiber-reinforced composite material. The encapsulated heat sink material comprises a heat sink material encapsulated within a silicon-containing encapsulation layer. Methods for manufacturing the brake disk with integrated heat sink and methods for producing the encapsulated heat sink material are also provided.

The present invention describes various methods for manufacturing gel composite sheets using segmented fiber or foam reinforcements and gel precursors. Additionally, rigid panels manufactured from the resulting gel composites are also described. The gel composites are relatively flexible enough to be wound and when unwound, can be stretched flat and made into rigid panels using adhesives.