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Sassi, M.*; Rosso, K. M.*; Okumura, Masahiko; Machida, Masahiko
Clays and Clay Minerals, 65(5), p.371 - 375, 2017/11
Times Cited Count：2 Percentile：79.17(Chemistry, Physical)no abstracts in English
Sakuma, Hiroshi*; Tachi, Yukio; Yotsuji, Kenji; Suehara, Shigeru*; Arima, Tatsumi*; Fujii, Naoki*; Kawamura, Katsuyuki*; Honda, Akira
Clays and Clay Minerals, 65(4), p.252 - 272, 2017/08
Times Cited Count：2 Percentile：16.51(Chemistry, Physical)Structure and stability of montmorillonite edge faces (110), (010), (100), and (130) of the layer charges y = 0.5 and 0.33 are investigated by the first-principles electronic calculations based on the density functional theory. Stacking and single layer models are tested for understanding the effect of stacking on the stability of montmorillonite edge faces. Most stacking layers stabilize the edge faces by making hydrogen bonds between the layers; therefore, the surface energy of stacking layers is reduced rather than the single layer model. This indicates that the surface energy of edge faces should be estimated depending on the swelling conditions. Lowest surface energies of (010) and (130) edge faces were realized by the presence of Mg ions on the edge faces. These edge faces have a strong adsorption site for cations due to local negative charge of the edges.
Kerisit, S.*; Okumura, Masahiko; Rosso, K. M.*; Machida, Masahiko
Clays and Clay Minerals, 64(4), p.389 - 400, 2016/08
Times Cited Count：29 Percentile：74.44(Chemistry, Physical)no abstracts in English
Niwa, Masakazu; Shimada, Koji; Tamura, Hajimu*; Shibata, Kenji*; Sueoka, Shigeru; Yasue, Kenichi; Ishimaru, Tsuneari; Umeda, Koji*
Clays and Clay Minerals, 64(2), p.86 - 107, 2016/04
Times Cited Count：10 Percentile：34.63(Chemistry, Physical)no abstracts in English
Sassi, M.*; Rosso, K. M.*; Okumura, Masahiko; Machida, Masahiko
Clays and Clay Minerals, 64(2), p.108 - 114, 2016/04
Times Cited Count：6 Percentile：21(Chemistry, Physical)no abstracts in English
Arthur, R. C.*; Sasamoto, Hiroshi; Walker, C.; Yui, Mikazu
Clays and Clay Minerals, 59(6), p.626 - 639, 2011/11
Times Cited Count：16 Percentile：45.29(Chemistry, Physical)Regarding to geological disposal of high level radioactive waste, long-term evolution of chemical condition in the rock mass by interactions of cementitious grout and rock would be predicted, if the grout is used for reducing the groundwater inflow during construction of drifts. Evolution of chemical condition is important because it could affect the evaluation of radionuclides migration for performance assessment. Zeolite is one of important alteration minerals by interactions of cementitious grout and rock. For evaluation of long-term evolution of chemical condition, it is necessary to develop thermodynamic data for alteration minerals like zeolite. The present paper proposes a revised model to derive more reliable thermodynamic data for zeolite. Additionally, a possibility to apply this revised model on other important alteration minerals is suggested.
Nagano, Tetsushi; Mitamura, Hisayoshi; Nakayama, Shinichi; Nakashima, Satoru*
Clays and Clay Minerals, 47(6), p.748 - 754, 1999/00
Times Cited Count：16 Percentile：44.62(Chemistry, Physical)no abstracts in English
Murakami, Takashi*; Isobe, Hiroshi; Sato, Tsutomu; Onuki, Toshihiko
Clays and Clay Minerals, 44(2), p.244 - 256, 1996/00
Times Cited Count：55 Percentile：84.43(Chemistry, Physical)no abstracts in English
Sato, Tsutomu; Murakami, Takashi*; Watanabe, Takashi*
Clays and Clay Minerals, 44(4), p.460 - 469, 1996/00
Times Cited Count：37 Percentile：75.43(Chemistry, Physical)no abstracts in English
Nagano, Tetsushi; *; ;
Clays and Clay Minerals, 42(2), p.226 - 234, 1994/00
Times Cited Count：34 Percentile：75.61(Chemistry, Physical)no abstracts in English
CNagano, Tetsushi; *; ; *;
Clays and Clay Minerals, 40(5), p.600 - 607, 1992/00
Times Cited Count：32 Percentile：74.64(Chemistry, Physical)no abstracts in English
