Prediction of oxygen potential in americium thorium oxides phase of a cermet fuel

Osaka, Masahiko; Kurosaki, Ken; Yamanaka, Shinşuke

doi:10.1016/j.jnucmat.2007.01.083

Cited by 6 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oxygen non-stoichiometries of CeO 2Àx [9] and (U 0.7 Ce 0.3 )O 2Àx [5] are those estimated by a chemical thermodynamic method developed by Lindemer and Besmann [12]. The chemical thermodynamic method is acknowledged as capable of giving an accurate reproduction of oxygen non-stoichiometries, especially for nuclear fuel-related oxide systems including Ce [13]. It is seen that the mean Ce valences of (Th 0.7 Ce 0.3 )O 2Àx are higher than those in CeO 2Àx at DG O 2 values ranging from about À500 to À400 kJ/mol.…”

Section: Resultsmentioning

confidence: 99%

Oxygen non-stoichiometries in (Th0.7Ce0.3)O2−x

Osaka

Miwa

Kurosaki

et al. 2011

Journal of Nuclear Materials

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Oxygen non-stoichiometries in (Th0.7Ce0.3)O2−x

Osaka

Miwa

Kurosaki

et al. 2011

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…Oxygen potential of the host phase of Mo-based fuel, (Am,U,Th)O 2-x , were predicted by Osaka et al [20] using the chemical thermodynamic method. A small amount of U addition was revealed to be effective for optimization of oxygen potentials during burnup.…”

Section: Fabrication Process and Fundamental Propertiesmentioning

confidence: 99%

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…The increase of the oxygen potential can bring the cladding inner surface oxidation/corrosion, which should be a limitation factor for the extended fuel burnup. The authors have carried out a basic thermochemical evaluation of the Mo-cermet fuel by means of a chemical thermodynamic method using a systematic oxygen potential data for actinides oxides [6]. Nevertheless, more detailed thermochemical evaluation for the Mo-cermet fuel should be carried out considering a combined thermochemical effect of actinides oxides with Mo inert matrix in the Mo-cermet fuel.…”

Section: Introductionmentioning

confidence: 99%