| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Achieving Low Power Loss and High Magnetic Performance in Soft Magnetic Composites through Advanced Sputter Coating for Insulation Layers on powders |
| Author(s) |
Yongheum Choi, Yujin Kim, Min-Woo Lee, Hwi-Jun Kim, Young Min Park |
| On-Site Speaker (Planned) |
Yongheum Choi |
| Abstract Scope |
Soft magnetic composites(SMCs) with lower power loss and higher magnetic permeability are essential for energy-efficient and high-performance devices as its applications have rapidly expanded. The key to minimize power loss in SMCs lies in the effective electrical insulation on metallic surfaces to restrict eddy currents. Conventional insulation methods, such as in-liquid coating or ball milling, have shown potential for reducing power loss. These approaches, however, often lead a deterioration of the magnetic property due to outbreaking defects and difficulties in controlling structural characteristics of insulation layer. This study introduces advanced sputter coating for SMCs, offering a uniform coating with precisely controlled thickness on the surface of powders. Notably, designated insulation layers substantially curtail power loss at high frequencies while enhancing the inherent magnetic properties of SMCs. This research suggest sputtering-based coating provide a robust solution to the challenges posed by traditional coating methods, significantly improving the magnetic performance of SMCs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Powder Materials, Surface Modification and Coatings |