Abstracts and Available Papers Presented at the 2003 International RERTR Meeting
FULL-SIZED PLATES IRRADIATION WITH HIGH UMo
- Final results of iris 1 experiment -
F. Huet, V. Marelle, J. Noirot,
Commissariat à l'énergie Atomique – Cadarache 13108
Saint-Paul-lez-Durance Cedex- France
P. Sacristan, P. Lemoine Commissariat à l'énergie Atomique – Saclay 91191 Gif-sur-Yvette
Cedex - France
As a part of the French UMo Group
qualification program, IRIS 1 experiment contained full-sized plates with high
uranium loading in the meat of 8 g.cm-3. The fuel particles
consisted of 7 and 9 wt% Mo-uranium alloys ground powders. The plate were
irradiated at OSIRIS reactor in IRIS device up to 67.5% peak burnup within the
range of 136 W.cm -2 for the heat flux and 72°C for the cladding temperature.
reactor cycle the plates thickness were measured. The results show no swelling
behaviour differences versus burnup between UMo7 and UMo9 plates. The maximum
plate swelling for peak burnup location remains lower than 6%.
The wide set of PIE has shown that,
within the studied irradiation conditions, the interaction product have a
global formulation of "(U-Mo)Al-7" and that there is no
aluminium dissolution in UMo particles.
IRIS1 experiment, as the first step
of the UMo fuel qualification for research reactor, has established the good
behaviour of UMo7 and UMo9 high uranium loading full-sized plate within the
Contact: Dr. François Huet
à l'Energie Atomique (CEA)
+33 (0) 4422-57547
+33 (0) 4422-53713
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