Published March 9, 1992
| Version v1
Journal article
Rheology of electrorheological fluids
Creators
- 1. The James Franck Institute and Department of Physics, The University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 (United States)
- 2. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
Description
We present experimental and theoretical results on the shear thinning of electrorheological fluids. Rheological measurements on a model fluid consisting of monodisperse silica spheres immersed in a dielectric liquid show a power-law dependence μ∝γ-Δ of the apparent viscosity μ on the strain rate γ, with Δ in the range Δ=0.68--0.93. We present a theoretical treatment of steady-state cluster formation in applied electric and shear fields, which correctly predicts the observed power-law shear thinning albeit with an exponent Δ=2/3. We observe no true yield stress in this material
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 68
- Journal Issue
- 10
- Journal Page Range
- p. 1519-1522.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24018618
- Subject category
- S36: MATERIALS SCIENCE; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- AGGLOMERATION; BROWNIAN MOVEMENT; DIELECTRIC MATERIALS; DISPERSIONS; DROPLETS; ELECTRIC FIELDS; ELECTROHYDRODYNAMICS; EXPERIMENTAL DATA; FLUIDS; RHEOLOGY; SHEAR; SILICON OXIDES; SPHERES; STEADY-STATE CONDITIONS; STRAINS; THEORETICAL DATA; VISCOSITY; YIELD STRENGTH
- Descriptors DEC
- CHALCOGENIDES; DATA; FLUID MECHANICS; HYDRODYNAMICS; INFORMATION; MATERIALS; MECHANICAL PROPERTIES; MECHANICS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PARTICLES; SILICON COMPOUNDS