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Effect of viscosity on the magnetic permeability of Sendust-filled polymer composites

Authors
Oh, Kyeong KeunLee, HoilLee, Woo SungYoo, Myong JaeKim, Woo NyonYoon, Ho Gyu
Issue Date
5월-2009
Publisher
ELSEVIER
Keywords
Sendust; Polymer composites; Magnetic permeability; Viscosity; Suspension; Tape casting
Citation
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.321, no.9, pp.1295 - 1299
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume
321
Number
9
Start Page
1295
End Page
1299
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120110
DOI
10.1016/j.jmmm.2008.11.093
ISSN
0304-8853
Abstract
A flake-shaped Sendust/acryl suspension is tape cast and the effect of the viscosity of the suspension on the magnetic permeability of the resulting composite is investigated. The real part of the permeability of the composite is inversely proportional to the viscosity of the suspension, indicating that the lower the viscosity of the suspension, the higher the permeability of the composite. The viscosity of the suspension is controlled by adding a small amount of surfactant; an anionic surfactant is most effective for lowering the viscosity at a given concentration range. It is thought that using a suspension with a relatively low viscosity improves the permeability of the resulting composite due to the easy alignment of the flake-shaped filler with the plain direction of the sheet. (C) 2008 Elsevier B.V. All rights reserved.
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공과대학 (신소재공학부)
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