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Title: Hydrothermal fabrication of octahedral-shaped Fe{sub 3}O{sub 4} nanoparticles and their magnetorheological response

Octahedral-shaped Fe{sub 3}O{sub 4} nanoparticles were synthesized in the presence of 1,3-diaminopropane using a hydrothermal method and assessed as a potential magnetorheological (MR) material. Their morphology, crystal structure, and magnetic properties were examined by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and vibrating sample magnetometry, respectively. The MR characteristics of the octahedral-shaped, Fe{sub 3}O{sub 4} nanoparticle-based MR particles when dispersed in silicone oil with a 10 vol. % particle concentration were examined using a rotational rheometer under an external magnetic field. The resulting MR fluids exhibited a Bingham-like behavior with a distinctive yield stress from their flow curves.
Authors:
;  [1]
  1. Department of Polymer Science and Engineering, Inha University, Incheon 402–751 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22410165
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 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; 77 NANOSCIENCE AND NANOTECHNOLOGY; CONCENTRATION RATIO; CRYSTAL STRUCTURE; FABRICATION; FERRITES; HYDROTHERMAL SYNTHESIS; IRON OXIDES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; NANOPARTICLES; SCANNING ELECTRON MICROSCOPY; SILICONES; STRESSES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION