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Takeda, Korehiro; Kaneko, Hiromitsu; Watanabe, Kazuyoshi; Ochiai, Kazuya
PNC TN841 84-63, 10 Pages, 1984/10
This study was started in 1982 as the part of BEFAST programme. In this year (1984), periodical measurements of the concentrations of micro-element (Fe,Ni,Cr)in the pool water continuously perform and the results were statistically compared with the results of 1983. It seems that nosignifi
Koizumi, Masumichi; *; Kaneko, Hiromitsu; Kishimoto, Yoichiro; Kanamori, Masashi; Ojima, Hisao; ; *
PNC TN842 83-05, 49 Pages, 1983/10
None
Kaneko, Hiromitsu; Yamaguchi, Toshihiro; Konashi, Kenji; Kamimura, Katsuichiro
PNC TN841 83-36, 107 Pages, 1983/06
no abstracts in English
Konashi, Kenji; Kaneko, Hiromitsu; *; *
American Nuclear Society 1983 Winter Meeting, 275 Pages, 1983/00
Konashi, Kenji; Kaneko, Hiromitsu; Nagai, Shuichiro; Tachibana, Toshimichi; Yamaguchi, Toshihiro; *
PNC TN841 82-58, 110 Pages, 1982/10
no abstracts in English
*; Kaneko, Hiromitsu; *; Yamaguchi, Toshihiro; *; *
PNC TN841 82-48, 113 Pages, 1982/09
no abstracts in English
Yamaguchi, Toshihiro; *; Kashima, Sadamitsu; Nagai, Shuichiro; Kaneko, Hiromitsu; *; Uruwashi, Shinichi*
PNC TN841 82-25, 74 Pages, 1982/03
no abstracts in English
fuel by resintering experiments at 1700
CYato, Tadao*; Yamaguchi, Toshihiro; Nagai, Shuichiro; Kaneko, Hiromitsu
PNC TN841 82-14, 31 Pages, 1982/02
no abstracts in English
Honda, Yutaka*; Yato, Tadao*; Konashi, Kenji; *; *; Kaneko, Hiromitsu
PNC TN841 81-30, 62 Pages, 1981/03
no abstracts in English
Kaneko, Hiromitsu; *; *; *; Nagai, Shuichiro
PNC TN841 82-44, 43 Pages, 1981/02
no abstracts in English
Tachibana, Toshimichi; Kaneko, Hiromitsu; Honda, Yutaka*
PNC TN841 80-45, 118 Pages, 1980/09
no abstracts in English
Yamaguchi, Toshihiro; Honda, Yutaka*; Kaneko, Hiromitsu
PNC TN841 80-36, 237 Pages, 1980/05
no abstracts in English
Yamaguchi, Toshihiro; Kaneko, Hiromitsu; Honda, Yutaka*
PNC TN841 80-09, 65 Pages, 1980/02
no abstracts in English
Honda, Yutaka*; Yato, Tadao*; Konashi, Kenji; Kaneko, Hiromitsu
PNC TN842 80-01, 91 Pages, 1980/01
Temperature and oxygen potemtial are the most important factors in determining chemical states within fuel pins. Oxygen potential at the fuel surface is about-100 kcal/mol in the typical LMFBR fuels. Cs (U, Pu)O
is produced by reaction of cesium with the fuel. Cesium migrates, axially to the blanket and CsUO is formed by reaction of ceisum with the blanket UO, It is possible that Cs
CrO (x=3, 4) and/or CsOH are produced at the cladding inner surface, and these compounds are especially important with regard to cladding corrosion. Cladding components iodides MI (M=Fe, Cr, Ni) and tellurides MTe
are important in a viewpoint of mass transport of cladding components. For the mechanism of FCCI, some models which are currently reported are reviewed. The models are for intergranular attack by CsOH, Cs-Te and Cs, and for cladding component mass transport by I and Cs-Te.
Honda, Yutaka*; Tachibana, Toshimichi; Kaneko, Hiromitsu
PNC TN841 79-41, 15 Pages, 1979/07
no abstracts in English
Tachibana, Toshimichi; *; Kaneko, Hiromitsu; Honda, Yutaka*
PNC TN841 79-37, 21 Pages, 1979/06
In the present study, the friction coefficient between UO pellet and Zry-2 cladding was successfully measured by out-of-pile experiments. The friction coefficient under a condition of hard contact was about 0.5 at temperature region of 300-400 C celsius. Using the results, calculation was performed to obtain the local stress/strain distributions in Zry- 2 cladding when a radially cracked pellet expanded out wardly after contact with the cladding. The calculation was carried out by finite element code in which a system of friction between pellet and cladding was introduced. Local strain concentrations appeared not only at the position just facing pellet's crack but also at the position apart from the cracks when the friction coefficient became larger than 1.0. From the analysis it was concluded that keeping the friction coefficient below 0.5 in fuel rod must be one of measures which prevent PCI-induced SCC failure.
Honda, Yutaka*; *; Kaneko, Hiromitsu
PNC TN842 79-02, 50 Pages, 1979/03
Models (including empirical ones) were reviewed on an irradiation induced fuel densification. Since the phenomena of fuel densification was observed in 1972, many experiments have been carried out to understand the densification and also theoretical and empirical models have been proposed by many workers. There are at least six theoretical models and also four empirical models which have been reported up to 1978 so far. The mechanisms of the desification in these models, however, were different from each other. We, therefore, reviewed these models in detail and selected a model suitable for a fuel pin behavior modeling.
Honda, Yutaka*; Kaneko, Hiromitsu; Tachibana, Toshimichi; Yamaguchi, Toshihiro; Yato, Tadao*; *; Konashi, Kenji
PNC TN841 79-15, 396 Pages, 1979/03
no abstracts in English
