Published February 15, 1981 | Version v1
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Phase relations in crystalline ceramic nuclear waste forms the system UO/sub 2 + x/-CeO2-ZrO2-ThO2 at 12000C in air

Creators

Description

Steady-state phase relations in the system UO/sub 2 + x/-CeO2-ZrO2-ThO2 were determined for application to phase relations in the high-level crystalline ceramic nuclear waste form Supercalcine-Ceramics. Samples were treated at 12000C at an oxygen partial pressure of 0.21 atm and a total pressure of 1 atm. Phase assemblages were found to be composed of cubic solid solutions of the flourite structure type, solid solutions based on ZrO2, and orthorhombic solid solutions based on U3O8

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01.

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Additional details

Publishing Information

Imprint Pagination
38 p.
Report number
DOE/ET/41900--3

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
12607077
Subject category
S36: MATERIALS SCIENCE; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
CERAMICS; CERIUM OXIDES; CRYSTALS; CUBIC LATTICES; FLUORITE; HIGH-LEVEL RADIOACTIVE WASTES; LOW PRESSURE; ORTHORHOMBIC LATTICES; PHASE STUDIES; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE PROCESSING; SOLIDIFICATION; THORIUM OXIDES; URANIUM OXIDES; VERY HIGH TEMPERATURE; ZIRCONIUM OXIDES
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CALCIUM FLUORIDES; CERIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; MANAGEMENT; MINERALS; OXIDES; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RARE EARTH COMPOUNDS; THORIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; ZIRCONIUM COMPOUNDS