EVOLUTION OF URANIUM DIOXIDE STRUCTURE DURING IRRADIATION OF FUEL RODS
Technical Report
·
OSTI ID:4716725
The characteristic microstructure of UO/sub 2/ observed in irradiated fuel rods is interpreted as resulting from a particular sequence of events. These are: initial melting of the central region; rapid columnar grain formation adjacent to the molten region; subsequent solidification of the core; and upon long exposure, slow continued columnar grain formation. Quantitative analyses of four irradiation test capsules reveal that the observed structure is consistent with this hypothesis. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-17-011260
- OSTI ID:
- 4716725
- Report Number(s):
- HW-SA-2650
- Country of Publication:
- United States
- Language:
- English
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