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U.S. Department of Energy
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Effect of cladding defect size on the oxidation of irradiated spent LWR (light-water reactor) fuel below 369/sup 0/C

Conference ·
OSTI ID:6502023

Tests on spent fuel fragments and rod segments were conducted between 250 and 360/sup 0/C to relate temperature, defect size, and fuel oxidation rate with time-to-cladding-splitting. Defect sizes from 760 ..mu..m diameter down to 8 ..mu..m, the size of an SCC type breach, were used. Above 283/sup 0/C, the time-to-cladding-splitting was longer for the smaller defects. The enhancement of the incubation time by smaller defects steadily decreased with temperature and was not detected at 250/sup 0/C. 18 refs., 10 figs., 4 tabs.

Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA); Argonne National Lab., IL (USA)
DOE Contract Number:
AC06-76FF02170
OSTI ID:
6502023
Report Number(s):
HEDL-SA-3168-FP; CONF-841094-6; ON: DE87008383
Country of Publication:
United States
Language:
English