Gesellschaft Zur Forderung Der Forschung an Der Eidgenossischen

Gesellschaft Zur-forderung Der Industrieorientierten Forschung an Den

Richard W Stratton

Klaus Bischoff

Glenn Andrews

Michel Nicolet

A tubular sheath for particulate nuclear fuel has microporous retaining elements formed by winding metal strip about a central pin and pushing the resulting spiral into the sheath ends. The metal strip has transverse grooves formed by a photo-etching process which form axial gas passages narrow enough to prevent passage of fuel particles. Suitable materials for the strip include molybdenum and tungsten. A stainless steel strip can be used if a molybdenum or tungsten disc is placed between it and the fuel.

Nuclear fuel rod with porous plug closure

Ceramic plutonium-uranium fuels are made by sintering wet-chemical microspheres of plutonium-uranium solid-solution oxides, carbides, nitrides, or the like, or by sintering separate plutonium- and uranium-compound microspheres mixed together, the uranium compound alternatively being in a fine-grained to pulverulent form.

Growing community of inventors

Windisch, Switzerland

Richard W Stratton