Conference proceeding
On Anisotropic Mobility of Non-magnetic Microspheres in Ferrofluid
INTERMAG 2006 - IEEE International Magnetics Conference, pp 108-108
May 2006
Abstract
This article reports results demonstrating that inhomogeneities in the ferrofluid caused by the presence of tiny non-magnetic inclusions can change this behavior not only quantitatively, but qualitatively as well. The effect is studied here by observing Brownian motion of non-magnetic polystyrene microspheres confined to thin layers of ferrofluid (EMG 707, Ferrotech, 1% and 0.5% iron-oxide by volume) between two glass slides. Results show that microspheres' mobility decreased with the applied field significantly. However, the observed mobility of the non-magnetic microspheres is up to 20% lower in the field direction compared with the direction perpendicular to the field. which contradicts the macroscopic Poiseuille flow.
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Details
- Title
- On Anisotropic Mobility of Non-magnetic Microspheres in Ferrofluid
- Creators
- S Kalaghatgi - Drexel UniversityD Halverson - Drexel UniversityM Baden - Drexel UniversityG Friedman - Drexel University
- Publication Details
- INTERMAG 2006 - IEEE International Magnetics Conference, pp 108-108
- Publisher
- IEEE
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Scopus ID
- 2-s2.0-50249102657
- Other Identifier
- 991019174915204721