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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

 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).

Journal Articles

$$^{151}$$Eu-M$"o$ssbauer spectroscopic and X-ray diffraction study of the Eu$$_{2}$$(Ce$$_{1-x}$$Zr$$_{x}$$)$$_{2}$$O$$_{7}$$ and LnEuZr$$_{2}$$O$$_{7}$$(Ln=lanthanide) systems

Masaki, Nobuyuki; Nakamura, Akio; Furuuchi, Fumihito*; Hinatsu, Yukio*

Journal of Physics and Chemistry of Solids, 66(2-4), p.312 - 317, 2005/02

 Times Cited Count:10 Percentile:42.74(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Phase study and thermal expansion of yttria stabilized zirconia doped with PuO$$_{2-x}$$

Yamashita, Toshiyuki; Yamazaki, Satoshi*; Sato, Tsuyoshi*; Matsui, Tsuneo*

Journal of Nuclear Science and Technology, 39(Suppl.3), p.656 - 659, 2002/11

no abstracts in English

JAEA Reports

Data on HTTR irradiation test specimens; The First and second irradiation tests

Baba, Shinichi; Ishihara, Masahiro; Suzuki, Yoshio*; Takahashi, Tsuneo*; Hoshiya, Taiji

JAERI-Data/Code 2002-008, 126 Pages, 2002/03

JAERI-Data-Code-2002-008.pdf:4.82MB

no abstracts in English

Journal Articles

Crystal structure of metastable tetragonal zirconia up to 1473K

Igawa, Naoki; Ishii, Yoshinobu

Journal of the American Ceramic Society, 84(5), p.1169 - 1171, 2001/05

 Times Cited Count:73 Percentile:92.81(Materials Science, Ceramics)

no abstracts in English

Journal Articles

Phase relations and equations of state of ZrO$$_{2}$$ under high pressure and high perature

Otaka, Osamu*; Fukui, Hiroyuki*; Kunisada, Taichi*; Fujisawa, Tomoyuki*; Funakoshi, Kenichi*; Utsumi, Wataru; Irifune, Tetsuo*; Kuroda, Koji*; Kikegawa, Takumi*

Physical Review B, 63(17), p.174108_1 - 174108_8, 2001/05

 Times Cited Count:129 Percentile:96.62(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Post-irradiation examination of uranium-based rock-like oxide fuels

Kuramoto, Kenichi; Yamashita, Toshiyuki; Shiratori, Tetsuo

Progress in Nuclear Energy, 38(3-4), p.423 - 426, 2001/02

 Times Cited Count:6 Percentile:44.09(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Evaluation on chemical state of irradiated rock-like oxide fuels by nuclear and chemical modeling

Nitani, Noriko; Kuramoto, Kenichi; Yamashita, Toshiyuki; Omichi, Toshihiko*

Progress in Nuclear Energy, 38(3-4), p.435 - 438, 2001/02

 Times Cited Count:1 Percentile:12.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Rock-like oxide fuel and inert matrix fuel

Yamashita, Toshiyuki

Nihon Genshiryoku Gakkai "Kodo Nenryo Gijutsu" Kenkyu Senmon Iinkai Hokokusho, p.467 - 474, 2001/00

no abstracts in English

Journal Articles

Rock-like oxide fuels for burning excess plutonium in LWRs

Yamashita, Toshiyuki; Kuramoto, Kenichi; Akie, Hiroshi; Nakano, Yoshihiro; Nitani, Noriko; Nakamura, Takehiko; Kusagaya, Kazuyuki*; Omichi, Toshihiko*

Proceedings of Workshop on Advanced Reactors with Innovative Fuels (ARWIF 2001) (CD-ROM), 10 Pages, 2001/00

no abstracts in English

Journal Articles

$$^{151}$$Eu-M$"o$ssbauer spectroscopic study of the fluorite-type oxide solid solutions, Eu$$_{y}$$M$$_{1-y}$$O$$_{2-y/2}$$ (M=Zr,Ce)(0$$leq$$y$$leq$$1.0)

Masaki, Nobuyuki; Guillermo, N. R. D.; Otobe, Haruyoshi; Nakamura, Akio; Izumiyama, Yuki*; Hinatsu, Yukio*

Advances in Science and Technology, 29, p.1233 - 1240, 2000/00

no abstracts in English

Journal Articles

Radiation effects on MgAl$$_{2}$$O$$_{4}$$-stabilized ZrO$$_{2}$$ composite material under He$$^{+}$$ or Xe$$^{2+}$$ ion irradiation

Sasajima, N.*; Matsui, Tsuneo*; Furuno, Shigemi*; Hojo, Kiichi; Shiratori, Tetsuo

Nuclear Instruments and Methods in Physics Research B, 166-167, p.250 - 257, 2000/00

 Times Cited Count:20 Percentile:76.46(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of oxygen sensors using zirconia solid electrolyte for fuel rods

*; Endo, Yasuichi; Yamaura, Takayuki; Matsui, Yoshinori; Niimi, Motoji; Hoshiya, Taiji; Kobiyama, M.*; Motohashi, Yoshinobu*

JAERI-Conf 99-006, p.343 - 348, 1999/08

no abstracts in English

Journal Articles

Development of rock-like fuels for plutonium annihilation of plutonium in LWRs

Yamashita, Toshiyuki; Akie, Hiroshi; Nitani, Noriko; Nakano, Yoshihiro; Nakamura, Takehiko; Shiratori, Tetsuo; Suzuki, Yasufumi

Proceedings of International Conference on Future Nuclear Systems (GLOBAL '99) (CD-ROM), p.8 - 0, 1999/00

no abstracts in English

JAEA Reports

Studies of high-level waste form performance at Japan Atomic Energy Research Institute

Bamba, Tsunetaka; Mitamura, Hisayoshi; ; *;

JAERI-Review 98-002, 23 Pages, 1998/02

JAERI-Review-98-002.pdf:1.81MB

no abstracts in English

Journal Articles

Development of electrolytic reactor for processing of gaseous tritiated compounds

Konishi, Satoshi; Maruyama, T.*; *; Inoue, Masahiko*; *

Fusion Engineering and Design, 39-40, p.1033 - 1039, 1998/00

 Times Cited Count:7 Percentile:53.8(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Phase-transformation study of metastable tetragonal zirconia powder

Igawa, Naoki; Nagasaki, Takanori*; Ishii, Yoshinobu; Noda, Kenji; Ono, Hideo; Morii, Yukio; Fernandez-Baca, J. A.*

J. Mater. Sci., 33, p.4747 - 4758, 1998/00

 Times Cited Count:6 Percentile:31.59(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Electrical properties of neutron-irradiated oxygen potential sensors using stabilized zirconia solid electrolyte

*; Endo, Yasuichi; Yamaura, Takayuki; Hoshiya, Taiji; Niimi, Motoji; Saito, Junichi; ; Ooka, Norikazu; Kobiyama, M.*

Journal of Nuclear Materials, 258-263, p.2041 - 2045, 1998/00

 Times Cited Count:6 Percentile:49.22(Materials Science, Multidisciplinary)

no abstracts in English

JAEA Reports

Thermal expantion and thermal conductivity of rock-like fuel

*; Kobayashi, Shinichi*; Shirasu, Noriko; Yamashita, Toshiyuki; Omichi, Toshihiko; Muromura, Tadasumi

JAERI-Research 97-083, 21 Pages, 1997/11

JAERI-Research-97-083.pdf:1.23MB

no abstracts in English

JAEA Reports

Neutron irradiation characteristic tests of oxygen sensors using zirconia solid electrolyte

*; Endo, Yasuichi; Yamaura, Takayuki; Niimi, Motoji; Hoshiya, Taiji; Saito, Junichi; ; Ooka, Norikazu; *

JAERI-Research 97-028, 46 Pages, 1997/03

JAERI-Research-97-028.pdf:2.49MB

no abstracts in English

43 (Records 1-20 displayed on this page)