Abstract
The soft magnetic Fe-based amorphous metallic ribbons Fe(87−x)Ti7Zr6[BxSix]0.5 (x = 8, 10, 12%) were prepared using the melt-spinning technique to have thickness of 15–22 μm and widths of 1-2 mm. Increasing the amounts of B and Si improved the soft magnetic properties: the coercivity (Hc) decreased, and the saturation magnetization (MS) increased, the thermal and structural properties remained the same. Due to the high sensitivity of the alloys to the process conditions, variations in the widths of the melt-spun ribbons induced structural modifications, resulting in significant change in the soft magnetic properties. While the ribbons made with 1 mm widths had fully amorphous structures and soft magnetic properties, the ribbons with 2 mm widths showed semi-hard magnetic properties, which was attributed to the formation of nanocrystals inside the amorphous structures.
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