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TEM CHARACTERIZATION OF IRRADIATED U3SI2/AL DISPERSION FUEL

Conference ·
OSTI ID:1016185
The silicide dispersion fuel of U3Si2/Al has been recognized as a reasonably good performance fuel for nuclear research and test reactors except that it requires the use of high enrichment uranium. An irradiated U3Si2/Al dispersion fuel (~75% enrichment) from the high flux side of a RERTR-8 (U0R040) plate was characterized using transmission electron microscopy (TEM). The fuel plate was irradiated in the advanced test reactor (ATR) for 105 days. The average irradiation temperature and fission density of the fuel particles for the TEM sample are estimated to be approximately ~110 degrees C and 5.4 x 10-21 f/cm3. The characterization was performed using a 200KV TEM with a LaB6 filament. Detailed microstructural information along with composition analysis is obtained. The results and their implication on the performance of this silicide fuel are discussed.
Research Organization:
Idaho National Laboratory (INL)
Sponsoring Organization:
DOE - NE
DOE Contract Number:
AC07-05ID14517
OSTI ID:
1016185
Report Number(s):
INL/CON-10-20143
Country of Publication:
United States
Language:
English

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