Swelling properties of smectite up to 90°C In situ X-ray diffraction experiments and molecular dynamic simulations

K. Kawamura, Yasuaki Ichikawa, M. Nakano, K. Kitayama, H. Kawamura

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

X-ray diffraction profiles were observed using a θ-θ type goniometer with a hand-made sample chamber for controlling the vapour pressure of H2O up to the saturated vapour pressure of H2O and temperatures up to 100°C. The obtained profiles for temperatures of 50, 70 and 90°C show the nearly stepwise swelling properties at these temperatures. The transformation P(H2O) values were determined for one to two and two to three layers of interlayer water molecules. Using molecular dynamic simulations the structural and energy properties were discussed for swelling behaviours.

Original languageEnglish
Pages (from-to)75-79
Number of pages5
JournalEngineering Geology
Volume54
Issue number1-2
DOIs
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

smectite
swelling
Swelling
Molecular dynamics
X-ray diffraction
Vapor pressure
vapor pressure
X ray diffraction
Computer simulation
simulation
Goniometers
experiment
temperature
Experiments
Temperature
Molecules
energy
in situ
Water
water

Keywords

  • Clay mineral
  • In situ measurement
  • Molecular dynamic simulation
  • Swelling property
  • X-ray diffraction

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Swelling properties of smectite up to 90°C In situ X-ray diffraction experiments and molecular dynamic simulations. / Kawamura, K.; Ichikawa, Yasuaki; Nakano, M.; Kitayama, K.; Kawamura, H.

In: Engineering Geology, Vol. 54, No. 1-2, 1999, p. 75-79.

Research output: Contribution to journalArticle

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AU - Kawamura, H.

PY - 1999

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