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Journal Articles

Effect of the introduction of amide oxygen into 1,10-phenanthroline on the extraction and complexation of trivalent lanthanide in acidic condition

Kobayashi, Toru; Yaita, Tsuyoshi; Suzuki, Shinichi; Shiwaku, Hideaki; Okamoto, Yoshihiro; Akutsu, Kazuhiro*; Nakano, Yoshiharu*; Fujii, Yuki*

Separation Science and Technology, 45(16), p.2431 - 2436, 2010/11

 Times Cited Count:39 Percentile:72.97(Chemistry, Multidisciplinary)

Journal Articles

Measurement of residual stress on a unidirectional solidified Al$$_{2}$$O$$_{3}$$/YAG eutectic composite using synchrotron and neutron diffraction

Suzuki, Hiroshi; Waku, Yoshiharu*; Nakagawa, Narihito*; Akita, Koichi*; Moriai, Atsushi; Morii, Yukio

Journal of Neutron Research, 15(2), p.113 - 120, 2007/06

The residual stress in only YAG phase was measured on the surface of the Al$$_{2}$$O$$_{3}$$-Y$$_{3}$$Al$$_{5}$$O$$_{12}$$(YAG) eutectic composite(Al$$_{2}$$O$$_{3}$$/YAG MGC) using the low energy synchrotron X-rays. The residual stresses in plane stress condition were significantly different between top and side surfaces of the specimen. Therefore, an anisotropic triaxial residual stress probably exists within the MGC. The residual stress within the MGC was also measured using a neutron diffraction. The residual stress in the YAG phase rose from compression in the solidification direction to tension in perpendicular direction. The residual stress in the Al$$_{2}$$O$$_{3}$$ phase was anisotropic compression and there was no tension in all directions. This anisotropic residual stress could be explained by the crystallographic anisotropy of thermal expansion in the Al$$_{2}$$O$$_{3}$$ phase. However, both phase stresses were not balanced, so that it is expected that there would be the stress distribution in MGC sample used in this study.

Oral presentation

Residual stress measurement on a directionally solidified Al$$_{2}$$O$$_{3}$$/YAG eutectic composite using neutron diffraction

Suzuki, Hiroshi; Waku, Yoshiharu*; Nakagawa, Narihito*

no journal, , 

Residual stresses in each phase of the Al$$_{2}$$O$$_{3}$$/YAG binary MGC were measured using neutron diffraction technique to investigate the generation mechanism of residual stresses. Residual stress in a large cubic specimen 25mm on a side was measured using the diffractometer for residual stress analysis (RESA) located in the JRR-3 (Japan Research Reactor No.3) at Japan Atomic Energy Agency in Japan. The residual stress in the YAG phase rose from compression in the solidification direction to tension in perpendicular direction. The residual stress in the Al$$_{2}$$O$$_{3}$$ phase was anisotropic compression and there was no tension in all directions. This anisotropic residual stress could be explained by the crystallographic anisotropy of thermal expansion in the Al$$_{2}$$O$$_{3}$$ phase.

Oral presentation

Synthesis and their ion recognition properties of phenanthroline-aide type ligands for tri- and tetra-valent actinides

Kobayashi, Toru; Yaita, Tsuyoshi; Suzuki, Shinichi; Shiwaku, Hideaki; Okamoto, Yoshihiro; Akutsu, Kazuhiro; Nakano, Yoshiharu*; Fujii, Yuki*

no journal, , 

no abstracts in English

Oral presentation

Separation of lanthanide ion by aromatic nitrogen ligands and fluorescent property of the extracted complex

Shiwaku, Hideaki; Akutsu, Kazuhiro; Yaita, Tsuyoshi; Okamoto, Yoshihiro; Kobayashi, Toru; Numakura, Masahiko; Nakano, Yoshiharu*; Mahara, Saori*; Fujii, Yuki*

no journal, , 

no abstracts in English

Oral presentation

Extraction properties of lanthanides by various aromatic nitrogen ligands

Akutsu, Kazuhiro; Shiwaku, Hideaki; Okamoto, Yoshihiro; Suzuki, Shinichi; Ikeda, Atsushi; Kobayashi, Toru*; Numakura, Masahiko; Mahara, Saori*; Nakano, Yoshiharu*; Fujii, Yuki*; et al.

no journal, , 

no abstracts in English

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