TY - JOUR
T1 - Uranium–plutonium–americium cation interdiffusion in polycrystalline (U,Pu,Am)O2±x mixed oxides
AU - Vauchy, Romain
AU - Matsumoto, Taku
AU - Hirooka, Shun
AU - Uno, Hiroki
AU - Tamura, Testuya
AU - Arima, Tatsumi
AU - Inagaki, Yaohiro
AU - Idemitsu, Kazuya
AU - Nakamura, Hiroki
AU - Machida, Masahiko
AU - Murakami, Tatsutoshi
AU - Kato, Masato
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2024/1
Y1 - 2024/1
N2 - Diffusion couples made of dense polycrystalline U1−αPuα−βAmβO2±γ/U1−yPuy−zAmzO2±x oxides were annealed in various thermodynamic conditions (temperature, oxygen partial pressure), and for different durations. The associated actinide redistribution was quantified using Electron Probe Micro-Analysis (EPMA). Average diffusion profiles were obtained from elemental U, Pu, and Am X-ray maps and the resulting interdiffusion coefficients were calculated, then analyzed at the light of our model of point defect chemistry.
AB - Diffusion couples made of dense polycrystalline U1−αPuα−βAmβO2±γ/U1−yPuy−zAmzO2±x oxides were annealed in various thermodynamic conditions (temperature, oxygen partial pressure), and for different durations. The associated actinide redistribution was quantified using Electron Probe Micro-Analysis (EPMA). Average diffusion profiles were obtained from elemental U, Pu, and Am X-ray maps and the resulting interdiffusion coefficients were calculated, then analyzed at the light of our model of point defect chemistry.
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U2 - 10.1016/j.jnucmat.2023.154786
DO - 10.1016/j.jnucmat.2023.154786
M3 - Article
AN - SCOPUS:85174742619
SN - 0022-3115
VL - 588
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
M1 - 154786
ER -