PROCESS FOR THE FABRICATION OF NUCLEAR FUEL ELEMENTS

A method of fabrication of nuclear fuel elements having high impermeability to fission gases and made up of refractory fuel particles dispersed in a carbonaceous matrix, said fuel particles being coated with a mixture of graphite and an organic diluent by means of a pelletizing process. An outer jacket for containing the coated particles is fabricated by shaping a paste formed of graphite powder and a binder, then baking and impregnating the jacket with pyrocarbon in a single operation by heating to a temperature between 850 DEG and 1,100 DEG C. in a gaseous hydrocarbon atmosphere.

申请(专利)号: USD3668283
申请日期: 1969年9月11日
公开(公告)日: 1972年6月6日
公开(公告)号: US3668283(A)
主分类号: G21C3/62,G,G21,G21C,G21C3
分类号: G21C3/62,G21C21/02,(IPC1-7):G21C21/00,G,(,G21,(IP,G21C,(IPC,G21C3,G21C21,(IPC1-7):G21C21
申请(专利权)人: COMMISSARIAT A L'ENERGIE ATOMIQUE
发明(设计)人: CLAUDE MOREAU