Argonne National Laboratory Nuclear Engineering Division
Argonne, Illinois 60439
ABSTRACT
Interpretation of the post irradiation data of
U-Mo/A1 dispersion fuel mini plates irradiated in the
Advanced Test Reactor to a maximum U-235 burn up of 80%
are presented. The analyses addresses fuel swelling and
porosity formation as these fuel performance issues
relate to fuel fabrication and irradiation parameters.
Specifically, mechanisms involved in the formation of
porosity observed in the U-Mo/A1 interaction phase are
discussed and, means of mitigating or eliminating this
irradiation phenomenon are offered.
Contact: Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Fax: +1 630-252-5161
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