| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Metallurgy and Magnetism
|
| Presentation Title |
Development of FeCo/MnZn Ferrite Composite by Field Assisted Sintering Technique |
| Author(s) |
Bowen Dong, Gabriel Santillan, Matthew Willard |
| On-Site Speaker (Planned) |
Bowen Dong |
| Abstract Scope |
FeCo alloys have great soft-magnetic properties, but small resistivity, which leads to eddy current losses. FeCo/MnZn ferrite composite with superexchange insulating matrix to limit the eddy current path length should be able to diminish the eddy current loss. In this study, we developed bulk composite using sol-gel synthesized core-shell structured FeCo/MnZn ferrite powders consolidated using field assisted sintering. Relative density ≥ 95 % were achieved. Using optical microscopy and scanning electron microscopy, it was found that ‘brick-and-mortar’ insulating matrix structure had been successfully achieved when the MnZn ferrite content ≥ 11.56 wt.% in the core-shell powder. Hysteresis measurements using vibrating sample magnetometry indicates a saturation magnetization of 181 Am2/kg (flux density of 1.7 T) and coercivity of 1516 A/m in compacted samples of FeCo/MnZn ferrite (11.56 wt.%) powder. |