The compositional dependence of metalloid elements on the as-quenched and nanocrystalline structures and soft magnetic properties in the Fe 85.2SixB14?x?yPyCu0.8 melt-spun ribbons was investigated. The formation of amorphous structure in the as-quenched state was confirmed in a wide compositional range of 0 ≤ x ≤ 2 and 0 ≤ y ≤ 6 at.%. A remarkably low coercivity (7-20 A/m) is exhibited by the annealed samples having very fine (< 30 nm in size) α-Fe nanocrystalline structure. It is indicated that the optimum P content is usable to control the formation of very fine α-Fe nanograins. Meanwhile, a small addition of Si is effective to prevent the formation of secondary phases and to obtain high saturation magnetic flux density. The nanocrystalline Fe 85.2SixB14?x?yPyCu0.8 ribbon exhibits the most excellent soft magnetic properties and has lower core loss than the commercially used materials, suggesting the potential application as magnetic core materials in electrical devices.
- High saturation magnetic flux density
- Nanocrystalline alloy
- Soft magnetic material
- low core loss
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering