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Kakiuchi, Kazuo; Udagawa, Yutaka; Amaya, Masaki
Annals of Nuclear Energy, 155, p.108171_1 - 108171_11, 2021/06
Times Cited Count：1 Percentile：16.35(Nuclear Science & Technology)Rodriguez, D.; Koizumi, Mitsuo; Rossi, F.; Seya, Michio; Takahashi, Tone; Bogucarska, T.*; Crochemore, J.-M.*; Pedersen, B.*; Takamine, Jun
Journal of Nuclear Science and Technology, 57(8), p.975 - 988, 2020/08
Times Cited Count：4 Percentile：35.51(Nuclear Science & Technology)Shirai, Osamu; Kato, Tetsuya*; Iwai, Takashi; Arai, Yasuo; Yamashita, Toshiyuki
Journal of Physics and Chemistry of Solids, 66(2-4), p.456 - 460, 2005/02
Times Cited Count：8 Percentile：37.11(Chemistry, Multidisciplinary)Electrochemical behaviors of PuN and (U, Pu)N in the LiCl-KCl eutectic melt containing UCl
and PuCl at 773 K were investigated by cyclic voltammetry. The electrochemical dissolution of PuN and (U, Pu)N began nearly at -1.0 V vs. the Ag/AgCl reference electrode. The rest potentials of PuN and (U, Pu)N were observed at about 0.15 V more negative potential than that of UN since the equilibrium potential of UN is about 0.15 V more positive than that of PuN. In the cyclic voltammogram measured by using (U, Pu)N as the working electrode, a steep rise of the positive current was observed at more positive potential than -0.4 V in analogy with the cyclic voltammogram measured by using UN as the working electrode. In addition, there were two anodic current waves in the voltammogram with (U, Pu)N, though the wave form was not clear. This indicates that UN and PuN would be dissolved independently irrespective of formation of the solid solution, (U, Pu)N.
fuel at burnup of 45 GWd/t during simulated Reactivity Initiated Accident (RIA) conditionAmaya, Masaki; Sugiyama, Tomoyuki; Fuketa, Toyoshi
Journal of Nuclear Science and Technology, 41(10), p.966 - 972, 2004/10
Times Cited Count：7 Percentile：45.11(Nuclear Science & Technology)Pulse irradiation simulating RIA condition was carried out for test rod prepared from fuel irradiated in a commercial reactor. After the pulse irradiation, optical microscopy (OM) and scanning electron microscopy (SEM) observations and electron probe micro analysis (EPMA) were conducted for the test rod as a part of destructive tests. Fission gas release behavior during pulse irradiation was investigated by EPMA and puncture test. Xeon depression was observed in the fuel pellet after pulse irradiation at periphery and center region. It is considered that fission gas was mainly released from the pellet center region during pulse irradiation. The amount of xenon release during pulse irradiation was estimated to be 10-12% from the EPMA results and this estimated value was comparable with the puncture test result. Comparing the estimated value with other results of out-of-pile annealing tests, it was concluded that most fission gas, which was accumulated at grain boundary during base irradiation, was released from the center region of test fuel pellet during pulse irradiation.
Li, J.-F.*; Kawai, Masayoshi*; Kikuchi, Kenji; Igarashi, Tadashi*; Kurishita, Hiroaki*; Watanabe, Ryuzo*; Kawasaki, Akira*
Journal of Nuclear Materials, 321(2-3), p.129 - 134, 2003/09
Times Cited Count：14 Percentile：66.94(Materials Science, Multidisciplinary)For the development of tantalum-clad tungsten targets for spallation neutron sources, the bonding strength of tantalum-tungsten interface was investigated by means of an easy-to-use and miniaturized small punch (SP) test, in which a punching load is vertically applied to the center of a jointed disk. Cracks initiated and propagated in the tungsten side for all the samples hot-isostatically pressed (HIPed) at temperatures from 1673 to 2073 K, whereas nocrack and debonding were observed in the interface, indicating that the jointed interface is strongly bonded. The re-crystallization of tungsten occurs and results in its strength reduction, consequently the crack-initiating load decreases with HIPing temperature. The finite element analysis of the measured SP testing results shows that the maximum bonding strength can exceed 1000 MPa. The present study shows that SP test is suitable for the strength evaluation of jointed tantalum-tungsten interfaces.
fuel under reactivity initiated accident conditionsSasajima, Hideo; Nakamura, Jinichi; Fuketa, Toyoshi; Uetsuka, Hiroshi
Journal of Nuclear Science and Technology, 36(11), p.1101 - 1104, 1999/11
Times Cited Count：2 Percentile：21.18(Nuclear Science & Technology)no abstracts in English
Ogawa, Toru; Kobayashi, Fumiaki; Sato, Tadashi; R.G.Haire*
Journal of Alloys and Compounds, 271-273, p.347 - 354, 1998/00
Times Cited Count：16 Percentile：68.02(Chemistry, Physical)no abstracts in English
JAERI-Data/Code 97-036, 47 Pages, 1997/09
JAERI-Data-Code-97-036.pdf:1.07MB
no abstracts in English
Ogawa, Toru; Shirasu, Yoshiro; Minato, Kazuo; Serizawa, Hiroyuki
Journal of Nuclear Materials, 247, p.151 - 157, 1997/00
Times Cited Count：15 Percentile：74.12(Materials Science, Multidisciplinary)no abstracts in English
D.M.Barnett*; Tajima, Toshiki*
Physical Review E, 54(6), p.6084 - 6092, 1996/12
Times Cited Count：11 Percentile：48.07(Physics, Fluids & Plasmas)no abstracts in English
Watanabe, Tadashi;
JAERI-Research 96-046, 50 Pages, 1996/09
JAERI-Research-96-046.pdf:1.58MB
no abstracts in English
Yamahara, Takeshi; Nishino, Yasuharu; Amano, Hidetoshi;
IAEA-TECDOC-822, 0, p.43 - 54, 1995/09
no abstracts in English
with a sublattice formalism; Equilibria involving the nonstoichiometric nitridesOgawa, Toru
Journal of Nuclear Materials, 201, p.284 - 292, 1993/00
Times Cited Count：13 Percentile：76.59(Materials Science, Multidisciplinary)no abstracts in English
Jitsukawa, Shiro; Kizaki, Minoru; ; Shiba, Kiyoyuki; Hishinuma, Akimichi
Small Specimen Test Techniques; ASTM STP 1204, p.289 - 307, 1993/00
Times Cited Count：15 Percentile：98.51(Nuclear Science & Technology)no abstracts in English
Suzuki, Masahide; Eto, Motokuni; Nishiyama, Yutaka; Fukaya, Kiyoshi;
Small Specimen Test Techniques; ASTM STP 1204, p.217 - 227, 1993/00
no abstracts in English
Yanagisawa, Kazuaki
Journal of Nuclear Science and Technology, 29(9), p.909 - 918, 1992/09
no abstracts in English
Suzudo, Tomoaki; Hayashi, Koji
Proc. of a Symp. on Nuclear Reactor Surveillance and Diagnostics,Vol. 1, 12 Pages, 1991/00
no abstracts in English
Handa, Nuneo; Shiozawa, Kenichi; Iwai, Takashi; Arai, Yasuo
Analytica Chimica Acta, 239, p.107 - 113, 1990/00
Times Cited Count：9 Percentile：47.03(Chemistry, Analytical)no abstracts in English
(M=Fe.Co,Ni); ; ;
Journal of Nuclear Materials, 115, p.187 - 191, 1983/00
Times Cited Count：0 Percentile：0.02(Materials Science, Multidisciplinary)no abstracts in English
and PuCoC; ; ;
Journal of Nuclear Science and Technology, 19(3), p.257 - 260, 1982/00
Times Cited Count：3 Percentile：54.87(Nuclear Science & Technology)no abstracts in English
