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Carbonyl iron suspension with halloysite additive and its magnetorheology
Abstract The magnetorheological (MR) characteristics of a micron-sized soft magnetic carbonyl iron-based MR fluid were examined using halloysite nanoclay mineral, as an additive. The flow curves measured from a rotational rheometer revealed non-Newtonian Bingham fluid behavior under an applied magnetic field. The sedimentation of the MR fluid with and without the halloysite additive was also measured using a Turbiscan. It was found that the added rod-like hollow nanotubular-structured halloysite improved the sedimentation problem despite the decrease in MR behavior, as determined from the significant decrease in sedimentation rate.
Highlights Halloysite is adopted as an additive for magnetorheological fluid. Halloysiteenhances dispersion stability of magnetorheological fluid. Yield stress was well correlated to universal scale function.
Graphical abstract Display Omitted
Carbonyl iron suspension with halloysite additive and its magnetorheology
Abstract The magnetorheological (MR) characteristics of a micron-sized soft magnetic carbonyl iron-based MR fluid were examined using halloysite nanoclay mineral, as an additive. The flow curves measured from a rotational rheometer revealed non-Newtonian Bingham fluid behavior under an applied magnetic field. The sedimentation of the MR fluid with and without the halloysite additive was also measured using a Turbiscan. It was found that the added rod-like hollow nanotubular-structured halloysite improved the sedimentation problem despite the decrease in MR behavior, as determined from the significant decrease in sedimentation rate.
Highlights Halloysite is adopted as an additive for magnetorheological fluid. Halloysiteenhances dispersion stability of magnetorheological fluid. Yield stress was well correlated to universal scale function.
Graphical abstract Display Omitted
Carbonyl iron suspension with halloysite additive and its magnetorheology
Hong, Cheng Hai (author) / Liu, Ying Dan (author) / Choi, Hyoung Jin (author)
Applied Clay Science ; 80-81 ; 366-371
2013-06-28
6 pages
Article (Journal)
Electronic Resource
English
Carbonyl iron suspension with halloysite additive and its magnetorheology
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