Molecular Dynamics Studies of Americium-Containing Mixed Oxide Fuels

Kurosaki, Ken; Adachi, Jun; Katayama, Masahito; Osaka, Masahiko; Tanaka, Kenya; Uno, Masayoshi; Yamanaka, Shinşuke

doi:10.1080/18811248.2006.9711215

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…This was also confirmed analytically by Kurosaki et al [12] in a molecular dynamics simulation. On the other hand, it was revealed that thermodynamic properties were significantly influenced by the addition of Am.…”

Section: Optimal Design For Am-containing Mox Fuelsupporting

confidence: 74%

Innovative oxide fuels doped with minor actinides for use in fast reactors

Osaka¹,

Miwa²,

Tanaka³

et al. 2007

WIT Transactions on Ecology and the Environment, Vol 105

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Research and development of innovative oxide fuels doped with minor actinides for use in fast reactors are underway. Management of minor actinides in a fast reactor fuel cycle is a key technology for successful realization of a sustainable energy supply with a low impact on the environment. Americium-doped oxide fuels are focused on as representative of minor actinides-containing fuel. Two types of fuels were designed and fabrication tests were carried out. Fundamental properties were also investigated. Results can effectively be reflected to establishment of the fast reactor cycle with minor actinides.

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Section: Optimal Design For Am-containing Mox Fuelsupporting

confidence: 74%

Innovative oxide fuels doped with minor actinides for use in fast reactors

Osaka¹,

Miwa²,

Tanaka³

et al. 2007

WIT Transactions on Ecology and the Environment, Vol 105

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“…18) The ionicity was set to be the same as those for other actinide oxides, namely 60%, 29) considering the Pauling scaling factor 30) that can be calculated using the electronegativity of each ion.…”

Section: Simulation Proceduresmentioning

confidence: 99%

Molecular Dynamics Study on Defect Structure of Gadolinia-Doped Thoria

Osaka

Adachi

Kurosaki

et al. 2007

Journal of Nuclear Science and Technology

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A molecular dynamics study on the defect structure of Gd-doped thoria was carried out. The partially ionic two-body potential was used with empirically obtained parameters for Th, Gd and O ions in the fluorite structure. Different defect structures were assumed and their effects on the lattice parameter were investigated. Molecular dynamics simulations were carried out with Gd fractions and temperatures ranging from 0 to 45% and from 298 to 1200 K, respectively. Diffusion coefficients of O ions in the Gd-doped thoria having various Gd fractions were also calculated at 1273 K. Comparison of the calculated results with the experimental ones lead to the conclusion that the Gd-oxygen vacancy-Gd type cluster is the most likely defect structure in the Gd-doped thoria.

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