Abstract
Nanocrystalline Fe-Si-B-P-Cu alloys exhibit high saturation magnetic flux density (Bs) and extremely low magnetic core loss (W), simultaneously. Low amorphous-forming ability of these alloys hinders their application potential in power transformers and motors. Here we report a solution to this problem. Minor addition of C is found to be effective in increasing the amorphous-forming ability of Fe-Si-B-P-Cu alloys. It allows fabrication of 120 mm wide ribbons (which was limited to less than 40 mm) without noticeable degradation in magnetic properties. The nanocrystalline (Fe85.7Si0.5B9.5P3.5Cu0.8)99C1 ribbons exhibit low coercivity (Hc)~4.5 A/m, high Bs~1.83 T and low W~0.27 W/kg (@ 1.5 T and 50 Hz). Success in fabrication of long (60-100 m) and wide (~120 mm) ribbons, which are made up of low cost elements is promising for mass production of energy efficient high power transformers and motors
Original language | English |
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Pages (from-to) | 479-483 |
Number of pages | 5 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 401 |
DOIs | |
Publication status | Published - 2016 Mar 1 |
Keywords
- High saturation magnetic flux density
- Low core loss
- Nanocrystalline alloy
- Soft magnetic material
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics