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Watanabe, Masashi; Sunaoshi, Takeo*; Kato, Masato
Defect and Diffusion Forum, 375, p.84 - 90, 2017/05
The oxygen chemical diffusion coefficient in (U, Pu)O was determined by thermo-gravimetry as functions of the Pu content, oxygen-to-metal ratio and temperature. The surface reaction was considered in the diffusion coefficient determination. The activation energy for the chemical diffusion coefficient was 60 kJ/mol and 65 kJ/mol, respectively, in (U
Pu
)O
and (U
Pu
)O
.
; Fujino, Takeo; Tagawa, Hiroaki
Journal of Nuclear Materials, 132, p.192 - 201, 1985/00
Times Cited Count:21 Percentile:89.24(Materials Science, Multidisciplinary)no abstracts in English
Watanabe, Masashi; Kato, Masato; Sunaoshi, Takeo*; Yato, Tadao*; Konashi, Kenji*
no journal, ,
Raman spectroscopy has been widely used to detect the oxygen vacancies and proven to be a very powerful characterization technique. The Raman spectral data of non-stoichiometric actinide oxides are very limited. The purpose of this work was to measure the Raman spectra of a non-stoichiometric (UCe
)O
solid solution. The Raman spectra of stoichiometric and non-stoichiometric (U
Ce
)O
are successfully measured. The T
peak of non-stoichiometric (U
Ce
)O
exhibited the same peak shift behavior as hypo-stoichiometric CeO
.