It is mainly used to replace silicon steel sheets as various forms and different powers of power frequency distribution transformers, power factor correction inductors, small transformer high-power rectangular magnetic cores, output energy storage filter inductors, saturated reactors, anti-interference filter inductors, medium-frequency transformer cores, with operating frequencies ranging from 50Hz to 10kHz; as a core material for high-power switching power supply reactors, the operating frequency can reach 50kHz.
It has very high saturation magnetic induction intensity, high magnetic permeability, low coercive force, low loss (equivalent to 1/3-1/5 of silicon steel), constant magnetic permeability, low excitation current and good temperature stability and aging stability.
Chemical composition of Fe-based amorphous alloy (at%)
| Grade | Fe | Si+B | Name | |||||||||||||||||
| 1K101 Series | 76-80 | 20-24 | FeSiB series rapid quenching amorphous soft magnetic alloy | |||||||||||||||||
Physical properties of iron-based amorphous alloys:
| Saturation magnetic induction intensity Bs | 1.5T | Vickers hardness Hv | 960kg/mm² | ||||
| Curie temperature Tc | 410℃ | Density d | 7.18(g/cm³) | ||||
| Crystallization temperature Tx | 535℃ | Resistivity p | 137μΩ ·cm | ||||
| Saturation magnetostriction coefficient λs | 27×10-6 | Continuous operating temperature | 150℃ | ||||
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