Magnetorheology of synthesized core-shell structured nanoparticle

Title
Magnetorheology of synthesized core-shell structured nanoparticle
Authors
Choi, H.J.; Jang, I.B.; Lee, J.Y.
Keywords
core-shell, magnetic composite, magnetorheological (MR) fluid
Issue Date
2005-10
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
Nanosized magnetic composite particles with polystyrene-acetoacetoxyethyl metbacrylate (PS-AAEM) core and magnetite shell were prepared by controlled precipitation of inorganic precursors onto the core particles. This composite was adopted as a dispersed phase of magnetorheological (MR) fluids. Flow properties of shear stress and shear viscosity of the MR fluids were analyzed via a rotational rheometer equipped with a magnetic field supplier in parallel plate geometry, and it was found that this magnetic-composite-particlebased MR fluid exhibited typical MR characteristics, by showing not only a Bingham fluid behavior with a yield stress but also the increase of shear stress as a function of an applied magnetic field strength.
URI
http://dspace.inha.ac.kr/handle/10505/1647
ISSN
0018-9464
Appears in Collections:
College of Engineering(공과대학) > Polymer Science and Engineering (고분자공학) > Journal Papers, Reports(고분자공학 논문, 보고서)
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