PRODUCTION OF NUCLEAR FUEL SINTERED BODY WITH OXIDE

Method for the manufacture of oxidic sintered nuclear fuel bodies by compacting UO2-starting powder or a mixture of UO2-and PuO2 starting powder which contains up to 10% by weight rare-earth oxide, especially Gd2O3, as an additive into blanks and subsequent densification of these blanks by a heat tr...

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Bibliographische Detailangaben
Hauptverfasser:	TOOMASU ZONDAAMAN, UORUFUGANGU DERU, GERUHARUTO GURAADERU, MARUCHIN PEESU, RAINHARUTO SHIEEFUAA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY 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 CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Method for the manufacture of oxidic sintered nuclear fuel bodies by compacting UO2-starting powder or a mixture of UO2-and PuO2 starting powder which contains up to 10% by weight rare-earth oxide, especially Gd2O3, as an additive into blanks and subsequent densification of these blanks by a heat treatment in a sintering atomsphere with reducing action. The UO2-starting powder used for compacting has a specific surface in the range of 2 to 4.5 m2/g and/or a mean crystallite diameter in the range of 80 nm to 250 nm, and the heat treatment in the sintering atmosphere with reducing action is carried out at a temperature in the range of 1,500 DEG C. to 1,750 DEG C.