Translational diffusion of water in compacted clay systems

González, F.; Jurányi, F.; Van Loon, L.; Gimmi, Thomas (2007). Translational diffusion of water in compacted clay systems. European physical journal - special topics, 141(1), pp. 65-68. EDP Sciences 10.1140/epjst/e2007-00019-9

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The translational diffusion of water in compacted clays at a high hydration level has been investigated by quasielastic neutron scattering at a time-of-flight spectrometer FOCUS (SINQ). Four compacted clays with systematic structural differences have been studied: Na-montmorillonite, Na-illite, kaolinite and pyrophyllite. The QENS experiments were performed using two different incident wavelengths in order to access a larger Q range and verify the data analysis. The translational diffusion coefficient for water in Na-montmorillonite and Na-illite are lower than those for bulk water, whereas the preliminary results for kaolinite and pyrophyllite show larger diffusion coefficient.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Gimmi, Thomas

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

1951-6355

Publisher:

EDP Sciences

Language:

English

Submitter:

Thomas Gimmi

Date Deposited:

22 Sep 2014 14:34

Last Modified:

09 Dec 2014 14:21

Publisher DOI:

10.1140/epjst/e2007-00019-9

Uncontrolled Keywords:

water dynamics

BORIS DOI:

10.7892/boris.47669

URI:

https://boris.unibe.ch/id/eprint/47669

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