NUCLEAR FUEL COMPOSITION

PURPOSE: To extend the use period up to the replacement of a nuclear fuel product for a nuclear reactor by subjecting a mixture of granular uranium oxide and a fine granular or powdery additive to compression molding. CONSTITUTION: A mixture of granular uranium oxide and a fine granular or powdery a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ANSONII POORU RIIZU, RICHIYAADO ARAN PUROEBUSUTORU, MITSUKII OOBIRU MAAROU
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE: To extend the use period up to the replacement of a nuclear fuel product for a nuclear reactor by subjecting a mixture of granular uranium oxide and a fine granular or powdery additive to compression molding. CONSTITUTION: A mixture of granular uranium oxide and a fine granular or powdery additive is subjected to compression molding to form handleable self- supporting matter or pellets having a proper shape and proper density. Subsequently, the compressed matter is sintered to mutually fuse particles to obtain an integrated ceramic fuel unit. BN, 2ZrB2 , B2 O3 and B6 Si are mixed with a fissionable oxide material consisting of uranium oxide, plutonium oxide and thorium oxide to obtain an improved nuclear fuel compsn. capable of being used within a nuclear reactor over a long period of time. In this case, BN, 2ZrB2 , B2 O3 , and B6 Si are used in a form of powder or fine granules and dispersed over the entire region of ceramic pellets consisting of fissionable element oxides.