Results 1 to 10 of about 79 (68)

Analysis and experimental validation of a pressure control method using magneto-rheology fluid flows [PDF]

open access: yesThe Journal of Engineering, 2018
In this study, a spool actuating mechanism using controlled pressure difference is proposed for a large hydraulic servo valve. The actuating mechanism is accomplished by tuning magneto-rheological (MR) fluid flow.
Fan Wang, Ning Guo, Linxiang Wang
doaj   +2 more sources

Magneto-rheology control in 3D concrete printing: A rheological attempt

open access: yesMaterials Letters, 2022
Abstract The application of magneto-rheology control in extrusion-based 3D concrete printing is conceptually examined by rheological experiments on cementitious paste with nano-Fe3O4. The extruding process is simulated by a constant shearing, and the buildability after extrusion is characterized by the structural build-up from small amplitude ...
Geert De Schutter   +2 more
exaly   +2 more sources

Possibilities of fly ash as responsive additive in magneto-rheology control of cementitious materials

open access: yesConstruction and Building Materials, 2021
Abstract Active rheology control, by means of pre-adding responsive additives and applying a trigger signal, is a potential approach to meet the contradicting requirements of concrete properties in different casting processes. In the present study, the possibilities of fly ash as responsive additive in magneto-rheology control of cementitious ...
Geert De Schutter   +2 more
exaly   +2 more sources

Rheology of Aqueous Ferrofluids: Transition from a Gel-Like Character to a Liquid Character in High Magnetic Fields

open access: yesChemEngineering, 2023
Rheological measurements under an applied magnetic field were used to investigate the changes to the internal structure and stability of an aqueous ferrofluid. The ferrofluid was prepared by dispersing 1.8 wt.% of maghemite nanoparticles with a size of d
Stanislav Campelj
exaly   +3 more sources

Novel reversible and switchable electrolytes based on magneto-rheology [PDF]

open access: yesScientific Reports, 2015
AbstractReplacing organic liquid electrolytes with solid electrolytes has led to a new perspective on batteries, enabling high-energy battery chemistry with intrinsically safe cell designs. However, most solid/gel electrolytes are easily deformed; under extreme deformation, leakage and/or short-circuiting can occur.
Jie Ding, Wenrong Yang, Caiyun Wang
exaly   +4 more sources

Magneto-rheology control of cementitious materials: principles, current status, and opportunities

open access: yesRILEM Technical Letters
Magneto-rheology control, an advanced active rheology control (ARC) technique, is achieved by applying an external magnetic field to a cementitious mixture with responsive additives.
Dengwu Jiao
doaj   +2 more sources

Energy conversion in magneto-rheological elastomers

open access: yesScience and Technology of Advanced Materials, 2017
Magneto-rheological (MR) elastomers contain micro-/nano-sized ferromagnetic particles dispersed in a soft elastomer matrix, and their rheological properties (storage and loss moduli) exhibit a significant dependence on the application of a magnetic field
Masami Nakano   +2 more
exaly   +2 more sources

Relationship between aggregate regime and magneto-rheology of a ferromagnetic rod-like particle suspension by means of Brownian dynamics simulations

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In the present study, we focus on a ferromagnetic rod-like particle suspension to discuss the dependence of the magneto-rheological properties on the regime of aggregates of the magnetic rod-like particles.
Kazuya OKADA, Akira SATOH
doaj   +3 more sources

Recycled strontium hexaferrite powder behavior in the magneto fluidized state in dependence of the chamber fill factor [PDF]

open access: yesE3S Web of Conferences, 2023
The magnetic powders affected by external magnetic fields can be transferred in the pseudo fluidized state to intensify the process of permanent magnets production.
Egorov Ivan   +2 more
doaj   +1 more source

Steady-State and Dynamic Rheological Properties of a Mineral Oil-Based Ferrofluid

open access: yesMagnetochemistry, 2022
In this study, nanoparticles were suspended in L-AN32 total loss system oil. The thixotropic yield behavior and viscoelastic behavior of ferrofluid were analyzed by steady-state and dynamic methods and explained according to the microscopic mechanism of ...
Hujun Wang   +4 more
doaj   +1 more source

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