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Title: Self-assembly of graphene oxide coated soft magnetic carbonyl iron particles and their magnetorheology

The surface of carbonyl iron (CI) microspheres was modified with graphene oxide (GO) as a coating material using 4-aminobenzoic acid as the grafting agent. The morphology, elemental composition, and magnetic properties of the GO-coated CI (GO/CI) particles were examined by scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometry, respectively, confirming their composite formation. The magnetorheological (MR) performance of the GO/CI particle-based suspension was examined using a rotational rheometer connected to a magnetic field supply. The GO/CI particles suspension exhibited typical MR properties with increasing shear stress and viscosity depending on the applied magnetic field strength.
Authors:
;  [1]
  1. Department of Polymer Science and Engineering, Inha University, Incheon 402-751 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22273861
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARBON OXIDES; CARBONYLS; GRAPHENE; IRON; MAGNETIC FIELDS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MICROSPHERES; MORPHOLOGY; PARTICLES; RHEOLOGY; SCANNING ELECTRON MICROSCOPY; STRESSES; SURFACES; SUSPENSIONS; VISCOSITY; X-RAY SPECTROSCOPY