TITLE

Jamming phase diagram of colloidal dispersions by molecular dynamics simulations

AUTHOR(S)
Kumar, Anil; Wu, Jianzhong
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/31/2004, Vol. 84 Issue 22, p4565
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a three-dimensional jamming phase diagram of a model colloidal system obtained from molecular dynamics simulations where the inter-colloidal forces are represented by the Derjaguin–Landau–Verwey–Overbeek potential. The jamming threshold is uniquely defined in terms of the critical volume fraction, the critical temperature, and the critical yield stress. The simulation results indicate that near the jamming transition the shear viscosity diverges following a critical-like scaling law as observed for realistic colloids. These results offer a convincing proof for unifying different nonequilibrium transitions in colloids under the concepts of jamming. © 2004 American Institute of Physics.
ACCESSION #
13154661

 

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