Comparative study on the structure and magnetic properties of Sm10Co60Fe15(Al, B)15 amorphous-nanocrystalline ribbons
Source abstract
Abstract
Abstract It is still a great challenge to prepare amorphous based alloy with high hard magnetic properties. In this paper, the structure and magnetic properties of Sm10Co60Fe15(Al, B)15 amorphous-nanocrystalline ribbons melt-spun at 40 m/s are investigated comparatively. It is found that the ribbons are composed of an amorphous matrix and the embedded nanocrystalline phases. Different Al and B contents change the liquid state, the combination tendency between atoms, the phase composition, the distribution of nanocrystalline, and the final microstructure of the as-spun ribbons. The Al10B5 ribbons show a microstructure of different sizes of nanocrystallites embedded in the amorphous matrix. In contrast, the Al5B10 ribbons form two types of cellular microstructures, nanoclusters or bar-shaped nanocrystals embedded in the amorphous matrix and nanocrystalline cell walls separating the amorphous cells. The high amorphous content leads to weak hard magnetic properties. Surprisingly, B-rich ribbons behave with higher hard magnetic properties than Al-rich ones.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Magnetic Properties of Alloys · Theoretical and Computational Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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