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Journal Articles

Defect layer in SiO-SiC interface proved by a slow positron beam

Maekawa, Masaki; Kawasuso, Atsuo; Yoshikawa, Masahito; Miyashita, Atsumi; Suzuki, Ryoichi*; Odaira, Toshiyuki*

Physica B; Condensed Matter, 376-377, p.354 - 357, 2006/04

https://doi.org/10.1016/j.physb.2005.12.091

Times Cited Count：2 Percentile：12.58(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Structure of SiO/4H-SiC interface probed by positron annihilation spectroscopy

Maekawa, Masaki; Kawasuso, Atsuo; Yoshikawa, Masahito; Miyashita, Atsumi; Suzuki, Ryoichi*; Odaira, Toshiyuki*

Physical Review B, 73(1), p.014111_1 - 014111_9, 2006/01

https://doi.org/10.1103/PhysRevB.73.014111

Times Cited Count：20 Percentile：64.46(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Oxygen potential measurements of fluorite-type Zr $_{0.5}$ Pu $_{0.5}$ O $_{2-y}$ by EMF method

Otobe, Haruyoshi; Nakamura, Akio; Yamashita, Toshiyuki; Minato, Kazuo

Journal of Nuclear Materials, 344(1-3), p.219 - 222, 2005/09

https://doi.org/10.1016/j.jnucmat.2005.04.045

Times Cited Count：3 Percentile：24.22(Materials Science, Multidisciplinary)

Actinides-bearing zirconias are prominent candidate materials for various nuclear applications: targets for actinide transmutation, inert material fuels, radioactive waste forms, etc. In this study, the oxygen potential (g(O $_{2}$ )) behavior of fluorite-type (F-type) Zr $_{0.5}$ Pu $_{0.5}$ O $_{2-y}$ has been measured by EMF method using the zirconia oxygen sensor. It was found that the g(O $_{2}$ ) values of F-type Zr $_{0.5}$ Pu $_{0.5}$ O $_{2-y}$ were about 150 kJ/mol higher than those of F-type PuO $_{2-y}$ at the same oxygen-nonstoichiometric (O/M) values. The g(O $_{2}$ ) values of F-type Zr $_{0.5}$ Pu $_{0.5}$ O $_{2-y}$ were 50 kJ/mol lower than those of pyrochlore Zr $_{2}$ Pu $_{2}$ O $_{7+x}$ at the same O/M values. These results suggest that the g(O $_{2}$ ) behavior depends on the cation and anion ordering/disordering, in addition to the cation composition ratio (Zr/Pu).