Meyer, Andreas and Kargl, Florian and Horbach, Jürgen (2012) Channel Diffusion in Sodium Silcate Melts. Neutron News, 23 (3), pp. 35-37. Taylor & Francis. doi: 10.1080/10448632.2012.695716.
Full text not available from this repository.
Official URL: http://www.tandfonline.com/loi/gnnw20
Abstract
We used quasielastic neutron scattering and molecular dynamics simulations in order to study the interplay of intermediate range order, atomic dynamics and properties of mass transport in sodium silicate melts. Our results show that the sodium ions align in sodium rich channels that disrupt the Si-O structure and that form a percolation network. The sodium ions diffuse along these channels in a relatively immobile Si-O network. The diffusion via these channels results in a decoupling of incoherent from coherent correlations of the sodium relaxation, as evidenced by simulation and experiment. A characteristic length scale for this channel structure is marked by prepeaks in the elastic structure factors at about q = 0.9 Å-1, corresponding to length scales of the order of 7 Å.
Item URL in elib: | https://elib.dlr.de/77002/ | ||||||||||||||||
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Document Type: | Article | ||||||||||||||||
Title: | Channel Diffusion in Sodium Silcate Melts | ||||||||||||||||
Authors: |
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Date: | 13 August 2012 | ||||||||||||||||
Journal or Publication Title: | Neutron News | ||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Volume: | 23 | ||||||||||||||||
DOI: | 10.1080/10448632.2012.695716 | ||||||||||||||||
Page Range: | pp. 35-37 | ||||||||||||||||
Publisher: | Taylor & Francis | ||||||||||||||||
Series Name: | Neutron News | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | quasi-elastic neutron scattering, molecular dynamics simulation, sodium silicate melts, melt structure - atomic diffusion relation | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
HGF - Program: | Space | ||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben Materialwissenschaftliche Forschung (old) | ||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||
Deposited By: | Meyer, Prof.Dr. Andreas | ||||||||||||||||
Deposited On: | 05 Oct 2012 09:04 | ||||||||||||||||
Last Modified: | 06 Sep 2019 15:23 |
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