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Home > Issues > SearchEffect on the Sedimentation Stability of Magnetorheological Fluid by Micro-nano Composite System
Journal of Magnetics, Volume 28, Number 2, 30 Jun 2023, Pages 172-180
Ji Jinjie (China University of Mining and Technology), Wu Xiangfan * 
(Xuzhou University of Technology), Tian Zuzhi (China University of Mining and Technology)
(Xuzhou University of Technology), Tian Zuzhi (China University of Mining and Technology)
Abstract
In magnetorheological devices, the magnetorheological fluids are inevitably in a zero-field state when the MR
device is out of work. Long-term placement will lead to the sedimentation of MR fluids, reducing the performance
of the magnetorheological device. A novel magnetorheological fluid was prepared by mixing microparticles
and nanoparticles to solve this problem. After one-week placement, the sedimentation rate of the novel
magnetorheological fluid is only 0.23 %, decreased by 88.5 % compared with general magnetorheological fluid.
The novel magnetorheological fluid shows excellent sedimentation stability, keeping magnetorheological devices
in good condition.
device is out of work. Long-term placement will lead to the sedimentation of MR fluids, reducing the performance
of the magnetorheological device. A novel magnetorheological fluid was prepared by mixing microparticles
and nanoparticles to solve this problem. After one-week placement, the sedimentation rate of the novel
magnetorheological fluid is only 0.23 %, decreased by 88.5 % compared with general magnetorheological fluid.
The novel magnetorheological fluid shows excellent sedimentation stability, keeping magnetorheological devices
in good condition.
Keywords: magnetorheological fluid; sedimentation; micro-nano; composite system
DOI: https://doi.org/10.4283/JMAG.2023.28.2.172
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