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Yamakawa, Koji*; Chimi, Yasuhiro; Ishikawa, Norito; Iwase, Akihiro*
Journal of Alloys and Compounds, 370(1-2), p.211 - 216, 2004/05
Times Cited Count：1 Percentile：12.44(Chemistry, Physical)The migration of hydrogen in Pd-1at.% Fe-H and Pd-1at.% Ag-H alloys is investigated by electrical resistivity measurement around 50 K. The disordered hydrogen atoms are introduced by electron irradiation with 0.5 MeV electrons below 15 K. The disordered atoms order by migration of hydrogen atoms during the heating-up of the specimens. The recovery curves of electrical resistivity have two sub-stages for electron irradiated specimens and one stage for fast cooled specimens. The migration energy of hydrogen is obtained from the kinetic analysis of the resistivity change due to the ordering, using the cross-cut method for the electron irradiated specimen and fast cooled specimen. The obtained value of the migration energy for the low temperature stage is smaller than that for the high temperature stage. The value for the high temperature stage is similar to the energy for the case of fast cooling. The difference between the hydrogen atoms disordered by irradiation and that by fast cooling is discussed for Pd based alloys.
Baba, Shinichi; Ishihara, Masahiro; Minakawa, Nobuaki; Suzuki, Junichi
Proceedings of International Conference on Advanced Technology in Experimental Mechanics 2003 (ATEM '03) (CD-ROM), 4 Pages, 2003/09
The aim of the present paper is to clarify the residual stress occuring in the c/c composite to improve the manufacturing process. The residual stress was measured by a neutron diffraction method using the RESA in the JRR-3M of JAERI in this study. As a results of the residual stress measurment, it was found that the residual stress of the ring type c/c composite is the comporessive stress, and the macroscopic residual strain/stress is absorbed mainly microstructural change such as pore shape change.
Chimi, Yasuhiro; Iwase, Akihiro; Iwata, Tadao*
Nuclear Instruments and Methods in Physics Research B, 209, p.159 - 164, 2003/08
Times Cited Count：2 Percentile：21.31(Instruments & Instrumentation)Accumulation of defects during energetic ion irradiation below 
10K in platinum thin films is studied by electrical resistivity measurements. Experimental results are analyzed by using a model which describes the production and selective radiation annealing of defects. For high-energy (100MeV) heavy ion irradiations, radiation annealing process due to electronic excitation is found mainly at the initial stage of irradiation. From the defect accumulation curve and defect recovery spectra, the effective temperature corresponding to the lattice agitation induced by electronic excitation is estimated.
Eto, Motokuni; Konishi, Takashi*
Tanso, (186), p.30 - 35, 1999/00
no abstracts in English
Hoshiya, Taiji; *; Katsuta, Hiroji; Ando, Hiroei
Nihon Kinzoku Gakkai-Shi, 56(7), p.747 - 756, 1992/00
no abstracts in English
Hoshiya, Taiji; Takamura, Saburo; ; *
Japanese Journal of Applied Physics, 29(8), p.L1443 - L1445, 1990/08
Times Cited Count：4 Percentile：29.75(Physics, Applied)no abstracts in English
Takamura, Saburo; Hoshiya, Taiji; ; *
Japanese Journal of Applied Physics, 28(8), p.L1395 - L1397, 1989/08
Times Cited Count：3 Percentile：23.68(Physics, Applied)no abstracts in English
Takamura, Saburo; ; Hoshiya, Taiji
Japanese Journal of Applied Physics, 28(7), p.L1118 - L1120, 1989/07
Times Cited Count：13 Percentile：59(Physics, Applied)no abstracts in English
; *; *
Journal of Nuclear Materials, 144, p.205 - 206, 1987/00
Times Cited Count：2 Percentile：64.42(Materials Science, Multidisciplinary)no abstracts in English
Journal of Nuclear Materials, 138, p.131 - 134, 1986/00
Times Cited Count：0 Percentile：0.36(Materials Science, Multidisciplinary)no abstracts in English
; Aruga, T.; *
Journal of Nuclear Materials, 136, p.159 - 163, 1985/00
Times Cited Count：15 Percentile：84.25(Materials Science, Multidisciplinary)no abstracts in English
*; ; *
Journal of Nuclear Materials, 131, p.53 - 60, 1985/00
Times Cited Count：16 Percentile：85.3(Materials Science, Multidisciplinary)no abstracts in English
*; ; *; *
Journal of Nuclear Materials, 135, p.32 - 39, 1985/00
Times Cited Count：4 Percentile：54.56(Materials Science, Multidisciplinary)no abstracts in English
*;
Nihon Kinzoku Gakkai-Shi, 49(7), p.491 - 494, 1985/00
no abstracts in English
*; ; *; *
Nihon Kinzoku Gakkai-Shi, 49(3), p.157 - 162, 1985/00
no abstracts in English
*;
Phys.Status Solidi A, 90, p.253 - 276, 1985/00
Times Cited Count：7 Percentile：44.93(Materials Science, Multidisciplinary)no abstracts in English
; *
Radiat.Eff., 91, p.139 - 153, 1985/00
no abstracts in English
*; ; *; *
JAERI-M 83-230, 29 Pages, 1984/01
no abstracts in English
J.Phys.,C, 17, p.1633 - 1642, 1984/00
no abstracts in English
; *
Radiat.Eff., 81, p.243 - 253, 1984/00
no abstracts in English
