Method for the fabrication of fuel elements and/or breeder elements for nuclear reactors

Fuel and/or breeder elements are produced which at a sufficient stability have enough porosity so that the core can also be flowed through by coolant. The fuel and/or breeder material is here in the form of bonded bodies made of particles coated with pyrolytic carbon, carbides such as silicon or zirconium carbide or of berillium and aluminium oxides. The fabrication is carried out in a grahite can with side openings into which the particles are filled. An induction coil, displaceable along the can, heats it to temperatures between 1,200 und 2,1000C. Simultaneously, the thermally decomposable gases such as methane, acetylene, benzene and Cl3SiCH3 or other chloromethyl silanes flow through the fill to form a solid bond of pyrolytic carbon and/or silicon carbide and zirconium carbide. Inert gases are added to the mixture. The heating takes place from the top to the bottom stepwise, so that the decomposed products occuring during pyrolysis can escape through the openings in the graphite. (DG)