Oxygen potentials of mixed oxide fuels for fast reactors

M. Kato; T. Tamura; K. Konashi

doi:10.1016/j.jnucmat.2008.12.012

Oxygen potentials of mixed oxide fuels for fast reactors

M. Kato, T. Tamura, K. Konashi

International Research Center for Nuclear Materials Science

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Oxygen potentials of homogenous (Pu_0.2U_0.8)O_2-x and (Am_0.02Pu_0.30Np_0.02U_0.66)O_2-x which have been developed as fuels for fast breeder reactors were measured at temperatures of 1473-1623 K by a gas equilibrium method using an (Ar, H₂, H₂O) gas mixture. The measured oxygen potentials of (Pu_0.2U_0.8)O_2-x were about 25 kJ mol^-1 lower than those of (Pu_0.3U_0.7)O_2-x measured previously and were consistent with the values calculated by Besmann and Lindemer's model. The measured oxygen potentials of (Am_0.02Pu_0.30Np_0.02U_0.66)O_2-x were slightly higher than those of MOX without minor actinides. No fuel-cladding chemical interaction is affected significantly by adding their minor actinides.

Original language	English
Pages (from-to)	419-423
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	385
Issue number	2
DOIs	https://doi.org/10.1016/j.jnucmat.2008.12.012
Publication status	Published - 2009 Mar 31

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2008.12.012

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abstract = "Oxygen potentials of homogenous (Pu0.2U0.8)O2-x and (Am0.02Pu0.30Np0.02U0.66)O2-x which have been developed as fuels for fast breeder reactors were measured at temperatures of 1473-1623 K by a gas equilibrium method using an (Ar, H2, H2O) gas mixture. The measured oxygen potentials of (Pu0.2U0.8)O2-x were about 25 kJ mol-1 lower than those of (Pu0.3U0.7)O2-x measured previously and were consistent with the values calculated by Besmann and Lindemer's model. The measured oxygen potentials of (Am0.02Pu0.30Np0.02U0.66)O2-x were slightly higher than those of MOX without minor actinides. No fuel-cladding chemical interaction is affected significantly by adding their minor actinides.",

author = "M. Kato and T. Tamura and K. Konashi",

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T1 - Oxygen potentials of mixed oxide fuels for fast reactors

AU - Kato, M.

AU - Tamura, T.

AU - Konashi, K.

PY - 2009/3/31

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N2 - Oxygen potentials of homogenous (Pu0.2U0.8)O2-x and (Am0.02Pu0.30Np0.02U0.66)O2-x which have been developed as fuels for fast breeder reactors were measured at temperatures of 1473-1623 K by a gas equilibrium method using an (Ar, H2, H2O) gas mixture. The measured oxygen potentials of (Pu0.2U0.8)O2-x were about 25 kJ mol-1 lower than those of (Pu0.3U0.7)O2-x measured previously and were consistent with the values calculated by Besmann and Lindemer's model. The measured oxygen potentials of (Am0.02Pu0.30Np0.02U0.66)O2-x were slightly higher than those of MOX without minor actinides. No fuel-cladding chemical interaction is affected significantly by adding their minor actinides.

AB - Oxygen potentials of homogenous (Pu0.2U0.8)O2-x and (Am0.02Pu0.30Np0.02U0.66)O2-x which have been developed as fuels for fast breeder reactors were measured at temperatures of 1473-1623 K by a gas equilibrium method using an (Ar, H2, H2O) gas mixture. The measured oxygen potentials of (Pu0.2U0.8)O2-x were about 25 kJ mol-1 lower than those of (Pu0.3U0.7)O2-x measured previously and were consistent with the values calculated by Besmann and Lindemer's model. The measured oxygen potentials of (Am0.02Pu0.30Np0.02U0.66)O2-x were slightly higher than those of MOX without minor actinides. No fuel-cladding chemical interaction is affected significantly by adding their minor actinides.

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Oxygen potentials of mixed oxide fuels for fast reactors

Abstract

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