Abstract
In an effort to obtain soft magnetic materials with excellent high-frequency characteristics, effects of flash annealing on magnetic properties and microstructure in melt-spun Fe-B-Nb-Cu alloy with ultrathin ribbon shape less than 10 μm thickness were investigated. The alloy subjected to optimum annealing treatment showed higher effective permeability and smaller magnetic core loss at 1 MHz than conventionally annealed alloy. The enhanced magnetic properties of the flash-annealed alloy were attributed to the reduced α-Fe phase grain size to 6 nm and the lower remanence ratio of about 0.3 in comparison to the conventionally annealed alloy with the values of 9 nm and 0.7, respectively. The results show that the flash annealing technique was effective in improving the high-frequency soft magnetic properties of Fe-B-Nb-Cu nanocrystalline alloy.
| Original language | English |
|---|---|
| Pages (from-to) | 685-688 |
| Number of pages | 4 |
| Journal | Materials Science and Engineering: A |
| Volume | 226-228 |
| DOIs | |
| State | Published - 15 Jun 1997 |
Keywords
- Flash annealing
- Nanocrystalline alloy
- Ultrathin ribbon
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