Magnetorheological fluid based on amorphous Fe-Si-B alloy magnetic particles. (August 2022)

• Record Type: Journal Article
• Authors: Yang, Chuncheng; Liu, Zhong; Pei, Xiangyu; Jin, Cuiling; Yu, Mengchun; Li, Yan
• Is Part Of: Journal of intelligent material systems and structures. Volume 33:Number 13(2022)
• Page Start: 1644
• Page End: 1653
• Publication Date: 2022-08
• Subjects: Amorphous particle -- stability -- magnetorheological fluid; Smart materials -- Periodicals; Intelligent control systems -- Periodicals; Artificial intelligence -- Periodicals; Matériaux intelligents -- Périodiques; Commande intelligente -- Périodiques; Intelligence artificielle -- Périodiques; 620.11
• DOI: 10.1177/1045389X211064329
• Languages: English
• ISSNs: 1045-389X

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 ( Ms ) 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.