Volume 59, Number 5, September 2002
|Page(s)||708 - 713|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 September 2002|
Structure, structural relaxation and ion diffusion in sodium disilicate melts
Physik Department E 13, Technische Universität
München 85747 Garching, Germany
2 Institut Laue-Langevin - 38042 Grenoble, France
3 Institut für Mineralogie, Petrologie und Geochemie Universität München - 80333 München, Germany
Corresponding author: email@example.com
Accepted: 10 June 2002
We have investigated Na2Si2O5 melts with inelastic neutron scattering at temperatures up to 1600 K. The Si-O network relaxes on a time scale of ns, whereas the Na ion relaxation dynamics are found on a time scale of 10 ps. The elastic structure factor exhibits at Å-1 an emerging prepeak which becomes more pronounced with increasing temperature. The prepeak is caused by the formation of sodium-rich regions in the partially disrupted Si-O tetrahedral network.
PACS: 61.20.Qg – Structure of associated liquids: electrolytes, molten salts, etc / 66.10.-x – Diffusion and ionic conduction in liquids / 61.12.-q – Neutron diffraction and scattering
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.