Magnetorheological fluid based on amorphous Fe-Si-B alloy magnetic particles
Source abstract
Abstract
Magnetorheological fluids (MRFs) based on amorphous Fe-Si-B alloy magnetic particles were prepared. The influence of annealing treatment on stability and rheological property of MRFs was investigated. The saturation magnetization ( M s ) of amorphous Fe-Si-B particles after annealing at 550°C is 131.5 emu/g, which is higher than that of amorphous Fe-Si-B particles without annealing. Moreover, the stability of MRF with annealed amorphous Fe-Si-B particles is better than that of MRF without annealed amorphous Fe-Si-B particles. Stearic acid at 3 wt% was added to the MRF2 to enhance the fluid stability to greater than 90%. In addition, the rheological properties demonstrate that the prepared amorphous particle MRF shows relatively strong magnetic responsiveness, especially when the magnetic field strength reaches 365 kA/m. As the magnetic field intensified, the yield stress increased dramatically and followed the Herschel-Bulkley model.
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Research context
OpenAlex topics: Vibration Control and Rheological Fluids · Characterization and Applications of Magnetic Nanoparticles · Fluid Dynamics and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Basalt Fiber Materials and School of Gemology and Materials Science, Hebei GEO University, Shijiazhuang, China
Shandong University, Jinan, China
Funding
Natural Science Foundation of Hebei Province · Hebei Province Foundation for Returnees · Foundation for Local Science and Technology Development Guided by the Central Government · Scientific Research Foundation for Ph.D. of Hebei GEO University
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