VAN-DER-WAALS FORCES IN ELECTRORHEOLOGICAL FLUIDS

Authors
WOESTMAN JT WIDOM A
Citation
Jt. Woestman et A. Widom, VAN-DER-WAALS FORCES IN ELECTRORHEOLOGICAL FLUIDS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(3), 1993, pp. 1995-1997
Citations number
16
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
48
Issue
3
Year of publication
1993
Pages
1995 - 1997
Database
ISI
SICI code
1063-651X(1993)48:3<1995:VFIEF>2.0.ZU;2-G
Abstract
It is well known that dipole-dipole forces (induced by external electr ic fields) between colloidal particles play a central role in determin ing the thermodynamic phases of electrorheological fluids. Here, it is argued that the long-range van der Waals forces induced by photon exc hange also play an important role. A theory, which quantitatively incl udes the van der Waals interactions, is developed using statistical th ermodynamic mean-field approximations. A comparison with an experiment al phase separation is shown to be satisfactory.