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This research aims to investigate the grain structure and magnetic properties of nanocrystalline ferromagnets.

Grain structure and magnetism of nanocrystalline ferromagnets

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Randomized trial explores magnetic properties in nanocrystalline ferromagnets, suggesting innovative applications.

This research aims to investigate the grain structure and magnetic properties of nanocrystalline ferromagnets.
Amorphous ribbons (Fe73.5Cu1Nb3Si13.5B9) were annealed above crystallization temperature.
Grain sizes were analyzed, revealing a homogeneous ultrafine grain structure of alpha-FeSi.
Temperature dependence of saturation magnetization was measured to identify magnetic phases.
Typical grain diameters were found to be 10-20 nm.
Two distinct magnetic phases were identified: alpha-FeSi grains and the grain boundary phase.
The nanocrystalline material displayed excellent soft magnetic properties consistent with the random anisotropy model.

G. Herzer (1989) studied this question.

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