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Alpha decay self-damage in cubic and monoclinic zirconolite

Conference ·
DOI:https://doi.org/10.1557/PROC-6-405· OSTI ID:5913566
; ; ; ;
Samples of primarily-monoclinic /sup 238/Pu-doped zirconolite were stored at ambient temperature to allow accumulation of alpha decay self-damage to a dose of 1 x 10/sup 24/ ..cap alpha../m/sup 3/ (equivalent to a SYNROC age of approx. 10/sup 3/y). Bulk swelling reached 2.3 vol% with no tendency toward saturation, a damage response similar to that observed for cubic Pu-doped zirconolite. X-ray volumetric swelling at 4 x 10/sup 24/ ..cap alpha../m/sup 3/ was 1 vol%, considerably less than that for the cubic material. Changes in cell dimensions differed significantly from those reported by others for a monoclinic natural mineral. Extensive microcracking was observed, and is attributed at least partially to swelling differences between the matrix and minor phases.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5913566
Report Number(s):
LA-UR-81-2954; CONF-811122-7; ON: DE82002400
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360605 -- Materials-- Radiation Effects
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALINE EARTH METAL COMPOUNDS
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
AMBIENT TEMPERATURE
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
CRACKS
CRYSTAL DOPING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DATA
DECAY
DIFFRACTION
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
IMPLANTS
INFORMATION
ISOTOPES
LATTICE PARAMETERS
MANAGEMENT
MINERALS
MONOCLINIC LATTICES
NUCLEI
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
PLUTONIUM 238
PLUTONIUM ISOTOPES
PROCESSING
RADIATION EFFECTS
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
SCATTERING
SWELLING
SYNROC PROCESS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
X-RAY DIFFRACTION
YEARS LIVING RADIOISOTOPES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
ZIRCONOLITE