With Coating On Fuel Or On Inside Of Casing; With Nonactive Interlayer Between Casing And Active Material; With Multiple Casings Or Multiple Active Layers [g21c-3/20] Patents (Class 976/DIG53)
  • Nuclear fuel elements comprising a trap for fission products based on oxide
    Patent number: 5268947
    Abstract: A nuclear fuel element comprising sintered pellets based on uraniferous oxide which are surrounded by a metallic sheath and permitting trapping of the fission products which appear in the course of irradiation characterized in that the pellets contain or are coated with or that the sheath is internally coated with an agent for trapping said fission products based on mixed metallic oxide comprising SiO.sub.2 and one at least of the oxides ZrO.sub.2 or CeO.sub.2.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 7, 1993
    Assignee: Uranium Pechiney
    Inventors: Bernard Bastide, Bertrand Morel, Michel Allibert