Microstructure and micro/macro-diffusion behavior of tritium in bentonite

Y. Ichikawa; Katsuyuki Kawamura; N. Fujii; K. Kitayama

doi:10.1016/j.clay.2003.09.013

Microstructure and micro/macro-diffusion behavior of tritium in bentonite

Y. Ichikawa, Katsuyuki Kawamura, N. Fujii, K. Kitayama

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Diffusion of tritium water, HTO, in bentonite clay is investigated. The method provides a sequential procedure of microscopic characterizations of the clay by a confocal laser scanning microscope (CLSM), the molecular dynamics (MD) simulation and the micro-/macro-analysis by the homogenization analysis (HA) method in which the results of the microscope characterizations and the MD simulations are used. The diffusion properties of HTO calculated by HA agree with the experimental data. Then we simulate the diffusion behavior of HTO in the barrier system of high-level radioactive waste management.

Original language	English
Pages (from-to)	75-90
Number of pages	16
Journal	Applied Clay Science
Volume	26
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.clay.2003.09.013
Publication status	Published - Aug 2004
Externally published	Yes

Keywords

Bentonite
Diffusion
Molecular dynamics
Multiscale homogenization analysis
Tritium

ASJC Scopus subject areas

Geology
Geochemistry and Petrology

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10.1016/j.clay.2003.09.013

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title = "Microstructure and micro/macro-diffusion behavior of tritium in bentonite",

abstract = "Diffusion of tritium water, HTO, in bentonite clay is investigated. The method provides a sequential procedure of microscopic characterizations of the clay by a confocal laser scanning microscope (CLSM), the molecular dynamics (MD) simulation and the micro-/macro-analysis by the homogenization analysis (HA) method in which the results of the microscope characterizations and the MD simulations are used. The diffusion properties of HTO calculated by HA agree with the experimental data. Then we simulate the diffusion behavior of HTO in the barrier system of high-level radioactive waste management.",

keywords = "Bentonite, Diffusion, Molecular dynamics, Multiscale homogenization analysis, Tritium",

author = "Y. Ichikawa and Katsuyuki Kawamura and N. Fujii and K. Kitayama",

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language = "English",

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journal = "Applied Clay Science",

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T1 - Microstructure and micro/macro-diffusion behavior of tritium in bentonite

AU - Ichikawa, Y.

AU - Kawamura, Katsuyuki

AU - Fujii, N.

AU - Kitayama, K.

PY - 2004/8

Y1 - 2004/8

N2 - Diffusion of tritium water, HTO, in bentonite clay is investigated. The method provides a sequential procedure of microscopic characterizations of the clay by a confocal laser scanning microscope (CLSM), the molecular dynamics (MD) simulation and the micro-/macro-analysis by the homogenization analysis (HA) method in which the results of the microscope characterizations and the MD simulations are used. The diffusion properties of HTO calculated by HA agree with the experimental data. Then we simulate the diffusion behavior of HTO in the barrier system of high-level radioactive waste management.

AB - Diffusion of tritium water, HTO, in bentonite clay is investigated. The method provides a sequential procedure of microscopic characterizations of the clay by a confocal laser scanning microscope (CLSM), the molecular dynamics (MD) simulation and the micro-/macro-analysis by the homogenization analysis (HA) method in which the results of the microscope characterizations and the MD simulations are used. The diffusion properties of HTO calculated by HA agree with the experimental data. Then we simulate the diffusion behavior of HTO in the barrier system of high-level radioactive waste management.

KW - Bentonite

KW - Diffusion

KW - Molecular dynamics

KW - Multiscale homogenization analysis

KW - Tritium

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DO - 10.1016/j.clay.2003.09.013

M3 - Article

AN - SCOPUS:3242664586

SN - 0169-1317

VL - 26

SP - 75

EP - 90

JO - Applied Clay Science

JF - Applied Clay Science

IS - 1-4 SPEC. ISS.

ER -

Microstructure and micro/macro-diffusion behavior of tritium in bentonite

Abstract

Keywords

ASJC Scopus subject areas

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