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Effect of storage temperature on self-irradiation damage of /sup 238/Pu-substituted zirconolite

Conference ·
OSTI ID:6733143
; ; ; ;

/sup 238/Pu-substituted cubic zirconolite (CaPuTi/sub 2/O/sub 7/) was stored at ambient temperature, 575/sup 0/ K, and 875/sup 0/ K until alpha decay doses of 2.4 to 3.6 x 10/sup 25//m/sup 3/ had been accumulated. The ambient temperature material swelled to a saturation value of 5.5 vol %, and the originally crystalline structure was transformed to one with an amorphous matrix and small domains that had retained their crystallinity. At 575/sup 0/ K, lesser amounts of swelling (4.1 vol %) and transformation were observed, reflecting concurrent partial recovery. The material held at 875/sup 0/ K remained crystalline, swelled only 0.4 vol %, and exhibited formation of isolated defect clusters. 5 figures.

Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6733143
Report Number(s):
LA-UR-82-2999; CONF-821107-9; ON: DE83002075
Country of Publication:
United States
Language:
English

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Related Subjects

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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
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ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AGING
ALKALINE EARTH METAL COMPOUNDS
ALPHA DECAY RADIOISOTOPES
AMORPHOUS STATE
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HIGH TEMPERATURE
IRON COMPOUNDS
IRON OXIDES
IRRADIATION
ISOTOPES
MANAGEMENT
MATERIALS
MICROSCOPY
MINERALS
NUCLEI
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
PLUTONIUM 238
PLUTONIUM COMPOUNDS
PLUTONIUM ISOTOPES
PROCESSING
RADIATION EFFECTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIOISOTOPES
SCATTERING
SELF-IRRADIATION
STORAGE
SWELLING
SYNROC PROCESS
TEMPERATURE DEPENDENCE
THORIUM COMPOUNDS
THORIUM OXIDES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
TRANSURANIUM COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
X-RAY DIFFRACTION
YEARS LIVING RADIOISOTOPES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
ZIRCONOLITE