The development of a Fe74Si11B14Ni1 soft magnetic powder used for SMC materials
| Autor: | B. Šuštaršič, Maja Remškar, Matjaž Godec, Monika Jenko, Dj. Mandrino |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Scanning electron microscope Alloy Surfaces and Interfaces General Chemistry engineering.material Condensed Matter Physics Microstructure Nanocrystalline material Surfaces Coatings and Films Amorphous solid Crystallography Chemical engineering X-ray photoelectron spectroscopy Transmission electron microscopy Materials Chemistry engineering High-resolution transmission electron microscopy |
| Zdroj: | Surface and Interface Analysis. 36:917-920 |
| ISSN: | 1096-9918 0142-2421 |
| DOI: | 10.1002/sia.1799 |
| Popis: | Soft magnetic composites (SMCs) are produced by compressing together soft magnetic powders and a binding insulator material. In some applications these composites are able to replace electrical steel sheets or ferrites. Here we report on the development of an SMC produced from Fe 74 Si 11 B 14 Ni 1 alloy powder and a binding epoxy insulator. The Fe 74 Si 11 B 14 Ni 1 powder was prepared by water atomization. The surfaces and the microstructures of the amorphous and nanocrystalline powders were investigated by x-ray photoelectron spectroscopy (XPS), x-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). It was found that most of the water-atomized Fe 74 Si 11 B 14 Ni 1 alloy powder particles that were smaller than 40 μm had an amorphous structure with small, isolated nanocrystalline grains. During annealing a completely nanocrystalline structure was obtained. |
| Databáze: | OpenAIRE |
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