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Title: Nuclear fuel element with axially aligned fuel pellets and fuel microspheres therein

Elongated single- and multi-region fuel elements are prepared by replacing within a cladding container a coarse fraction of fuel material which includes plutonium and uranium in the appropriate regions of the fuel element and then infiltrating with vibration a fine-sized fraction of uranium-containing microspheres throughout all interstices in the coarse material in a single loading. The fine, rigid material defines a thin annular layer between the coarse fraction and the cladding to reduce adverse mechanical and chemical interactions. (Official Gazette)
Authors:
;
Publication Date:
OSTI Identifier:
4340572
Report Number(s):
US 3778348
Resource Type:
Patent
Resource Relation:
Patent File Date: 1971 Feb 12; Other Information: G21c3/26; G21c3/28. Orig. Receipt Date: 30-JUN-74
Research Org:
Originating Research Org. not identified
Country of Publication:
United States
Language:
English
Subject:
N77500* --Reactors--Power Reactors, Breeding; *FBR TYPE REACTORS; *FUEL ELEMENTS-- FABRICATION; *LMFBR TYPE REACTORS-- FUEL ELEMENTS; MECHANICAL VIBRATIONS; MICROSPHERES; PLUTONIUM OXIDES; URANIUM DIOXIDE LMFBR TYPE REACTORS