Magnetic inductor based on nanosize amorphous metal powder

The effects of field annealing on the magnetic properties of FeSiB amorphous powder cores

“…Among these systems, the Fe-based Fe-Si-B amorphous alloy Page 5 of 18 A c c e p t e d M a n u s c r i p t exhibits good properties as soft magnetic materials being the combination of advantages of conventional powder core, such as high saturation induction, high permeability, low coercive field and low core loss, and can be widely used in electronic devices of magnetic shielding, transformer, and choking coil [7][8][9][10]. There have lots of researches for the effect of different parameters on the magnetic properties of the amorphous powder cores, and found that the magnetic properties of the final cores can be improved by adjusting the amorphous powder size, the characteristics and contents of the binding materials, the consolidation conditions, the shape of the core and the annealing temperature and time [11][12][13][14]. Besides these traditional methods, in order to fulfill the demands of high frequency, miniaturization and large current for electronic components, it is inevitable to develop other new methods to improve the magnetic properties of the amorphous powder cores.…”