Abstract: A method of manufacturing a part out of impervious thermostructural composite material, the method comprising forming a porous substrate from at least one fiber reinforcement made of refractory fibers, and densifying the reinforcement by a first phase of carbon and by a second phase of silicon carbide. The method then continues by impregnating the porous substrate with a composition based on molten silicon so as to fill in the pores of the substrate.

Abstract: To provide a thermal connection that can withstand mechanical stress in a high temperature structure comprising a panel having one face carrying a circuit made up of tubes in which a fluid flows, the outside walls of the tubes are covered in respective high thermal conductivity textile layers. The structure further comprises holding means for holding the tubes pressed in non-rigid manner against the panel. The structure enables heat exchange to take place between the panel and the fluid in order to cool the panel, to heat the fluid, or indeed in order to do both.

Abstract: In order to prevent brazing composition from coming into contact with the silicon or other elements present in the materials of two parts made of thermostructural composite material that are being assembled together by brazing, a refractory ceramic material layer is formed at least on those surfaces of the parts that are to be united, which material is not reactive with silicon at brazing temperature.

Abstract: A method of manufacturing a part out of impervious thermostructural composite material, the method comprising forming a porous substrate from at least one fiber reinforcement made of refractory fibers, and densifying the reinforcement by a first phase of carbon and by a second phase of silicon carbide. The method then continues by impregnating the porous substrate with a composition based on molten silicon so as to fill in the pores of the substrate.

Abstract: A metal coating is formed on the inside face of a first thermostructural composite material part presenting indentations forming channels, and also on the inside face of a second thermostructural composite material part for being applied against the inside face of the first part, and the first and second parts are assembled together by bonding said inside faces together by hot compression, in particular by hot isostatic pressing, thereby obtaining a thermostructural composite material cooling panel having integrated fluid flow channels. The invention is applicable to making heat exchanger walls such as the walls of combustion chambers in aircraft engines, or the diverging portions of rocket engines, or plasma confinement chambers in nuclear fusion reactors.

Abstract: The active cooling panel comprises a first part and a second part of thermostructural composite material, each having an inside face and an opposite outside face, the parts being assembled together by bonding their inside faces together, and channels being formed by indentations formed in the inside face of at least one of the first and second parts. The panel further includes a sealing layer bonded to at least one of the first and second parts and situated at a distance from the assembled-together inside faces thereof. The invention is applicable to making heat exchanger walls such as the walls for the combustion chambers of aircraft engines, or the diverging portions of rocket engines, or plasma confinement chambers in nuclear fusion reactors.

Abstract: To provide a thermal connection that can withstand mechanical stress in a high temperature structure comprising a panel having one face carrying a circuit made up of tubes in which a fluid flows, the outside walls of the tubes are covered in respective high thermal conductivity textile layers. The structure further comprises holding means for holding the tubes pressed in non-rigid manner against the panel. The structure enables heat exchange to take place between the panel and the fluid in order to cool the panel, to heat the fluid, or indeed in order to do both.