Document Detail


Vitreous silica distends in helium gas: acoustic versus static compressibilities.
MedLine Citation:
PMID:  23368344     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Sound velocities of vitreous silica are measured under He compression in the pressure range of 0-6 GPa by Brillouin light scattering. It is found that the well-known anomalous maximum in the pressure dependence of the compressibility is suppressed by He incorporation into the silica network. This shows that the elastic anomaly relates to the collapse of the largest interstitial voids in the structure. The huge difference between the static and the acoustic compressibilities indicates that the amount of incorporated helium still increases at 6 GPa.
Authors:
Coralie Weigel; Alain Polian; Mathieu Kint; Benoit Rufflé; Marie Foret; René Vacher
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Publication Detail:
Type:  Journal Article     Date:  2012-12-12
Journal Detail:
Title:  Physical review letters     Volume:  109     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-02-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  245504     Citation Subset:  IM    
Affiliation:
Université Montpellier 2, Laboratoire Charles Coulomb UMR 5221, F-34095 Montpellier, France and CNRS, Laboratoire Charles Coulomb UMR 5221, F-34095 Montpellier, France.
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