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Search Results: Records 1-6 displayed on this page of 6

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Oral presentation

Investigation of in-reactor cesium chemical behavior in TEPCO's Fukushima Daiichi Nuclear Power Station accident, 10; Phenomenological generation mechanisms of spherical cesium bearing particle

Ito, Kenichi*; Suzuki, Akihiro*; Oishi, Yuji*; Nakamori, Fumihiro*; Hikida, Shiro*; Nozaki, Kenichiro*; Honda, Takeshi*; Mizokami, Shinya

no journal, ,

The spherical cesium bearing particles (insoluble Cs particles), which were found in Fukushima and Tokyo area, are considered to be formed in RPV of Fukushima Daiichi NPS unit2 because of its composition and microstructural characteristic that needs quench from high temperature.

Oral presentation

Dissolution temperature of Ni-Si-Mn precipitates in steels; When they became compounds

Matsukawa, Yoshitaka*; Fujieda, Hideto*; Muta, Hiroaki*; Nakamori, Fumihiro*; Yamaguchi, Masatake; Kasada, Ryuta*; Yoshida, Kenta*; Yabuuchi, Kiyohiro*; Endo, Minako*; Yuya, Hideki*

no journal, ,

Oral presentation

Prediction and extension of lifetime of reactor pressure vessel, 2; Status and challenges of phase diagrams related to Ni-Si-Mn precipitates

Matsukawa, Yoshitaka*; Fujieda, Hideto*; Terao, Masashi*; Tsurekawa, Sadahiro*; Muta, Hiroaki*; Nakamori, Fumihiro*; Kasada, Ryuta*; Yoshida, Kenta*; Sato, Mitsutaka*; Yabuuchi, Kiyohiro*; et al.

no journal, ,

no abstracts in English

Oral presentation

Phase diagram of Ni-Si-Mn precipitates in reactor pressure vessel steels

Matsukawa, Yoshitaka*; Terao, Masayuki*; Fujieda, Hideto*; Tsurekawa, Sadahiro*; Muta, Hiroaki*; Yuya, Hideki*; Kasada, Ryuta*; Yoshida, Kenta*; Yabuuchi, Kiyohiro*; Nakamori, Fumihiro*; et al.

no journal, ,

Oral presentation

Investigation of in-reactor cesium chemical behavior in TEPCO's Fukushima Daiichi Nuclear Power Station accident, 6; Simulation study on microstructure of Cs-bearing particle

Oishi, Yuji*; Nakamori, Fumihiro*; Muta, Hiroaki*; Kurosaki, Ken*; Yamanaka, Shinsuke*; Sakata, Takao*; Sato, Kazuhisa*; Yasuda, Hidehiro*; Osaka, Masahiko

no journal, ,

Simulant material of Cs-bearing particle was synthesized from the melted glass of which composition was selected based on the composition of the Cs-bearing particle. The relationship between the nucleation behavior of Franklinite (ZnFe $_{2}$ O $_{4}$ ) and cooling speed was studied. The possibility of the formation of Franklinite phase through spinodal decomposition was also evaluated.

Oral presentation

Investigation of in-reactor cesium chemical behavior in TEPCO's Fukushima Daiichi Nuclear Power Station accident, 7; Leaching behavior of Zn, Si and other elements from inorganic Zn-rich paint

Nakamori, Fumihiro*; Oishi, Yuji*; Muta, Hiroaki*; Kurosaki, Ken*; Yamanaka, Shinsuke*; Osaka, Masahiko

no journal, ,

Influence of elements from Zr-rich paint on composition of Cs-bearing particle was evaluated, by investigating elution behavior of Zn, Si and so on from paint mock-up samples in water at RCIC temperature condition.