Effects of the sweep rate of the applied field on the agglomeration of magnetic particles in magnetic fluid film

Citation
He. Horng et al., Effects of the sweep rate of the applied field on the agglomeration of magnetic particles in magnetic fluid film, J MAGN MAGN, 226, 2001, pp. 1884-1886
Citations number
5
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
0304-8853 → ACNP
Volume
226
Year of publication
2001
Part
2
Pages
1884 - 1886
Database
ISI
SICI code
0304-8853(200105)226:<1884:EOTSRO>2.0.ZU;2-J
Abstract
In this work, the influence of the sweep rates of applied magnetic fields o n the agglomeration of magnetic particles in the magnetic fluid film are re ported. It was observed that a smaller column agglomerated by magnetic part icles results at a higher sweep rate as compared with that at a lower sweep rate. Besides, the magnetic moment per volume inside a column decreases ra pidly when the sweep rate is raised from 0 to 15 Oe/s, and almost remains c onstant as the sweep rate exceeds 20 Oe/s. This variation implies that the packing of magnetic particles inside a column depends on the sweep rate. Th us, the sweep rate is a crucial variable determining the internal structure of columns. (C) 2001 Elsevier Science B.V. All rights reserved.