Influence of the Microstructure on the U1-yAmyO2-x (y= 0.1; 0.15) Pellet Macroscopic Swelling


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This work is devoted to the study of the geometrical stability in time of UyAm1-yO2-x pellet due to self-irradiation at room temperature. Dense and tailored porosity U1-yAmyO2-x (y=0.10; 0.15) compounds were fabricated by a powder metallurgy process. Up to 3.4.1017 α particles/g, an increase in the diameter of 0.9% was observed for the dense compounds while for the tailored porosity material a diameter increase of 0.4% was observed. Swelling laws have been established from the experimental data.



Edited by:

Pietro VINCENZINI, Hua-Tay LIN and Kevin FOX




D. Prieur et al., "Influence of the Microstructure on the U1-yAmyO2-x (y= 0.1; 0.15) Pellet Macroscopic Swelling", Advances in Science and Technology, Vol. 73, pp. 104-108, 2010

Online since:

October 2010




[1] M. Salvatores, C. Chabert, C. Fazio, R. Hill, Y. Peneliau, I. Slessarev and W.S. Yang: Fuel cycle analysis of TRU or MA burner fast reactors with variable conversion ratio using a new algorithm at equilibrium, Nuclear Engineering and Design, vol. 239 (2009).


[2] G. Ivan Maldonado, J. Galloway and H. Hernandez: Recycling heterogeneous americium targets in a boiling water reactor, Annals of Nuclear Energy, vol. 37 (2010), pp.256-264.


[3] A. Jankowiak, C. Maillard and L. Donnet: Structural study of Pu1-xAmxO2 (x = 0. 2; 0. 5; 0. 8) obtained by oxalate co-conversion, " Journal of Nuclear Materials, vol. 393 (2009), pp.87-91.


[4] M. Walter, J. Somers, A. Fernandez, D. Haas, K. Dardenne and M. Denecke: Structural investigation on an aged americium transmutation fuel, Journal of Nuclear Materials, vol. 362 (2007), pp.343-349.


[5] M. Kato, A. Komeno, H. Uno, H. Sugata, N. Nakae, K. Konashi and M. Kashimura: Self-radiation damage in plutonium and uranium mixed dioxide, Journal of Nuclear Materials, vol. 393 (2009), pp.134-140.


[6] C. Hurtgen and J. Fuger: Self-irradiation effects in americium oxides, vol. 13 (1977), pp.179-188.

[7] D. Prieur, A. Jankowiak, C. Leorier, N. Herlet, L. Donnet, P. Dehaudt, P. Blanchart, J-P. Laval, C. Maillard: Fabrication and characterisation of minor actinides bearing fuels obtained by conventional powder metallurgy process, Powder technology (2009).


[8] X. Deschanels, V. Picot, B. Glorieux, F. Jorion, S. Peuget, D. Roudil, C. Jégou, V. Broudic, J. Cachia, T. Advocat, C. Den Auwer, C. Fillet, J. Coutures, C. Hennig and A. Scheinost, Plutonium incorporation in phosphate and titanate ceramics for minor actinide containment, Journal of Nuclear Materials, vol. 352 (2006).


[9] J. Rodriguez-Carjaval : FULLPROF: A Program for Rietveld Refinement and Pattern Matching Analysis, Satellite Meeting on Powder Diffraction of the XV IUCr Congress, (1990).

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