Effect of Gallium Addition on the Magnetic Properties of Nd Fe Al }Ga Alloy

Effect of Gallium Addition on the Magnetic Properties of Nd Fe Al }Ga Alloy

In this study, the effect of gallium (Ga) for Al substitution in the Nd 60 Fe 30 Al (10-x) Ga x (in at.%) system was analyzed. Cylindrical samples (rods) with a diameter of 1 mm were prepared by casting the material into a copper die. Substitution of gallium for aluminum leads to substantial growth...

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Veröffentlicht in:IEEE transactions on magnetics 2008-11, Vol.44 (11), p.4250-4253
Hauptverfasser: Kaszuwara, W., Michalski, B., Leonowicz, M., Latuch, J.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Casting
Coercive force
Copper
Gallium
Iron
Magnetic materials
Magnetic properties
Magnetism
Neodymium
neodymium alloys
Remanence
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Zusammenfassung:In this study, the effect of gallium (Ga) for Al substitution in the Nd 60 Fe 30 Al (10-x) Ga x (in at.%) system was analyzed. Cylindrical samples (rods) with a diameter of 1 mm were prepared by casting the material into a copper die. Substitution of gallium for aluminum leads to substantial growth of the coercivity up to 407 kA/m for x = 8. The remanence is constant up to x = 8. Magnetic properties for higher Ga concentrations of hard magnetic properties abruptly decrease. On the basis of the differential scanning calorimeter and X-ray diffraction data, it may be concluded that the Ga addition reduces the ability for amorphous structure formation; for x = 10 crystalline phases predominate.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2008.2001994