Pulse current training induced marked improvement of soft magnetic properties in Fe-based amorphous alloys
It is difficult to fine-tune the atomic local structure and magnetic domain structure globally to evade the saturation magnetization (Bs)- coercivity (Hc) trade-off in amorphous alloys with high-Fe content. Herein, a unique pulse current training is introduced to optimize the soft magnetic propertie...
Saved in:
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-02-01
|
| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2024.2429610 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | It is difficult to fine-tune the atomic local structure and magnetic domain structure globally to evade the saturation magnetization (Bs)- coercivity (Hc) trade-off in amorphous alloys with high-Fe content. Herein, a unique pulse current training is introduced to optimize the soft magnetic properties of Fe-based amorphous alloys, achieving 1.78 T Bs and 1.6 A/m Hc in Fe83.3Si4B8P4Cu0.7. Structural analysis shows that low coercivity is due to the almost no pinning-sites magnetic domain structures despite a relative large grain size of 25 nm. Training accumulates energy to activate soft regions and rearrange structure, eliminating quenching-induced stresses and inhomogeneities to minimize reversal pinning. |
|---|---|
| ISSN: | 2166-3831 |