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Hirooka, Shun; Yokoyama, Keisuke; Kato, Masato
Proceedings of International Conference on Fast Reactors and Related Fuel Cycles; Sustainable Clean Energy for the Future (FR22) (Internet), 8 Pages, 2022/04
Property studies on Am/Np-bearing MOX were carried out and how the properties influences on the irradiation behaviors was discussed. Both Am and Np inclusions increase the oxygen potential of MOX. Inter-diffusion coefficients obtained by using diffusion couple technique indicate that the inter-diffusion coefficient is larger in the order of U-Am, U-Pu and U-Np. Also, the inter-diffusion coefficients were evaluated to be larger at the O/M = 2 than those of O/M 
2 by several orders. The increase of oxygen potential with Am/Np leads to higher vapor pressure of UO
and the acceleration of the pore migration along temperature gradient during irradiation. The redistributions of actinide elements were also considered with the relationship of the pore migration and diffusion in solid state. Thus, the obtained inter-diffusion coefficients directly influence on the redistribution rate. The obtained properties were modelled and can be installed in a fuel irradiation simulation code.
; H.L.Bay*; J.Bohdansky*; J.Roth*
Nuclear Instruments and Methods in Physics Research B, 13, p.403 - 407, 1986/00
Times Cited Count：12 Percentile：79.59(Instruments & Instrumentation)no abstracts in English
; ; ;
Journal of Nuclear Science and Technology, 15(2), p.152 - 155, 1978/02
Times Cited Count：1no abstracts in English
; ;
JAERI-M 6182, 20 Pages, 1975/07
no abstracts in English
