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(305) Production(s) de KOB W.
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Heterogeneous diffusion in a reversible gel
Auteur(s): Kob W.
Conference: Soft, Complex and Biological Matter (Palermo, Italy, FR, 2007-08-15)
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Static and Dynamic Properties of Gels
Auteur(s): Kob W.
(Séminaires)
DLR (Koeln, Allemagne, FR), 2007-09-18 |
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Virtual experiments : Combining realistic neutron scatering instrument and sample simulations
Auteur(s): Hugouvieux Virginie, Farhi E., Johnson M., Kob W.
(Article) Publié:
Genome Biology, vol. Submitted p. (2006)
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Network formation and relaxation dynamics in a new model for colloidal gelation
Auteur(s): Del gado Emanuela, Kob W.
(Article) Publié:
Journal Of Non-Newtonian Fluid Mechanics, vol. 149 p.28-33 (2008)
DOI: 10.1016/j.jnnfm.2007.06.007
WoS: 000253553400005
18 Citations
Résumé: We investigate the gel formation from the equilibrium sol phase in a simple model that has the characteristics of (colloidal) gel-forming systems at a finite temperature. At low volume fraction and low temperatures, particles are linked by long-living bonds and form an open percolating network. By means of molecular dynamics simulations, we study the lifetime of bonds and nodes of the gel network in order to relate these quantities to the complex relaxation dynamics observed. (c) 2007 Elsevier B.V. All rights reserved.
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Band gap states in hydrous silica glass : The role of the local environment
Auteur(s): Benoit Magalie, Poehlmann Marcus, Kob W.
(Article) Publié:
Genome Biology, vol. submitted p. (2006)
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Democratic particle motion for meta-basin transitions in simple glass-formers
Auteur(s): Appignanesi G.A., Fris J.A.R., Montani R.A., Kob W.
(Article) Publié:
Physical Review Letters, vol. 96 p.057801 (2006)
PMID 16486989
DOI: 10.1103/PhysRevLett.96.057801
WoS: 000235252200085
140 Citations
Résumé: We use molecular dynamics computer simulations to investigate the local motion of the particles in a supercooled binary liquid. Using the concept of the distance matrix, we find that the alpha relaxation corresponds to a small number of crossings from one metabasin to a neighboring one. Each crossing is very rapid and involves the collective motion of O(40) particles that form a relatively compact cluster, whereas stringlike motions seem not to be relevant for these transitions. These compact clusters are thus potential candidates for the cooperatively rearranging regions proposed a long time ago by Adam and Gibbs.
Commentaires: ISI Document Delivery No.: 011FA Times Cited: 0 Cited Reference Count: 26 English Article 0031-9007 057801
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Structure and relaxation of a colloidal gel
Auteur(s): Kob W.
Conference: Complex Systems (Barcelona, Spain, FR, 2006-10-04)
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