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Aqueous Magnetorheological Suspensions of Composite Carbonyl Iron Particles

[+] Author Affiliations
H. B. Cheng

Wuhan University of Technology, Wuhan, China; University of Maryland, College Park, MD

L. Zuo, Q. J. Zhang

Wuhan University of Technology, Wuhan, China

N. M. Wereley

University of Maryland, College Park, MD

Paper No. SMASIS2010-3899, pp. 367-372; 6 pages
doi:10.1115/SMASIS2010-3899
From:
  • ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
  • Philadelphia, Pennsylvania, USA, September 28–October 1, 2010
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4415-1 | eISBN: 978-0-7918-3886-0
  • Copyright © 2010 by ASME

abstract

Aqueous magnetorheological (MR) suspensions of composite carbonyl iron particles (CCIPs) were prepared with carbonyl iron particles and an organic reagent coating (N-polyether, N, N, N,-acetyloxy) 2, 6-aminion-1, 3, 4-thiadiazole dimer (EAMTD). The properties of the CCIPs, including morphology, structure, and magnetic behaviors, were characterized using scanning electron microscopy (SEM) and a vibrating sample magnetometer (VSM). The MR properties of the aqueous MR suspensions were analyzed via a strain-controlled parallel disk rheometer equipped with a magnetic field source. The results show that the stability and redispersibility of the aqueous MR suspensions were greatly improved, and the yield stress is influenced by the EAMTD coating layer of the CCIPs.

Copyright © 2010 by ASME

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