Abstract: A composite structure comprising an organic resin and carbon fibers comprises planar structure graphene nanosheets embedded in the resin. This structure combining good properties in terms of mechanical resilience, thermal conductivity and electrical conductivity can advantageously be used for thermal dissipation devices, as solar generator substrate or else as housing of electronic components, carried on board satellites.

Abstract: A device for dissipating heat, for a space-based satellite, includes at least one dissipating panel, the dissipating panel having at least one skin formed from a composite structure comprising an organic resin and carbon fibers, wherein the organic resin is filled with carbon nanotubes. The heat-dissipating device may also comprise a network of heat pipes. The heat pipes may be made from an aluminum alloy incorporating elements having low coefficients of thermal expansion. The present invention is notably applicable to fixed dissipating panels or those that may be used in telecommunications, observation or scientific satellites, or else on racks assembled to dissipating panels.

Abstract: A method of manufacturing a tube-plate structure of metal-matrix composite material in which a single mold is used having a first fiber preform of shape comparable to that of the tube, a second fiber preform of shape comparable to that of the plate, and a third fiber preform surrounding the first fiber preform where it is adjacent to the second fiber preform all placed therein. Thereafter, a metal or a metal alloy is injected into the mold along the axis of the tube via the face of the second preform that is remote from the first preform. This provides a monolithic structure that presents a high degree of thermo-mechanical stability.

Abstract: A method of manufacturing a tube-plate structure of metal-matrix composite material in which a single mold is used having a first fiber preform of shape comparable to that of the tube, a second fiber preform of shape comparable to that of the plate, and a third fiber preform surrounding the first fiber preform where it is adjacent to the second fiber preform all placed therein. Thereafter, a metal or a metal alloy is injected into the mold along the axis of the tube via the face of the second preform that is remote from the first preform. This provides a monolithic structure that presents a high degree of thermo-mechanical stability.