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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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OECD NEA meeting focuses on irradiation experiments
Members of the OECD Nuclear Energy Agency’s Second Framework for Irradiation Experiments (FIDES-II) joint undertaking gathered from September 29 to October 3 in Ketchum, Idaho, for the technical advisory group and governing board meetings hosted by Idaho National Laboratory. The FIDES-II Framework aims to ensure and foster competences in experimental nuclear fuel and structural materials in-reactor experiments through a diverse set of Joint Experimental Programs (JEEPs).
Gerard L. Hofman
Nuclear Technology | Volume 77 | Number 1 | April 1987 | Pages 110-115
Technical Note | Nuclear Fuel | doi.org/10.13182/NT87-A33957
Articles are hosted by Taylor and Francis Online.
Formation of fission gas bubbles heretofore has not been observed in uranium-aluminide fuels. Recent irradiations to record high burnups offered a possibility to determine the onset of fission gas bubble formation in this type of fuel. Present experimental evidence suggests that UAl2, UAl3, and UAl4 do not form fission gas bubbles at fission densities of 7 × 1021/cm3 of fuel (60% depletion of 93% enriched 235U), and that pure uranium aluminide is likely to remain free of fission gas bubbles to very high 235U burnup at any enrichment. However, fission gas bubbles were found in these experimental fuels for the first time, but they were without exception associated with uranium-oxide inclusions that were evidently formed during fuel fabrication.
