MAGNETIC PROPERTIES OF THE Fе–Nb–B–Rе AMORPHOUS ALLOYS
Journal Title: Праці Наукового товариства ім. Шевченка - Year 2017, Vol 48, Issue
Abstract
Magnetic susceptibility and coercive force of the amorphous Fe-based alloys depends on interaction in the amorphous matrix formed nanoclusters. The RE (Y, Gd, Tb, Dy) alloying of the Fe–Nb–B–RE amorphous alloys increase their magnetic susceptibility and decrease coercive force. Over the ability to increase the Curie temperature RE alloying arranged in series: Y <Dy <Tb <Gd, which is associated with the value of the Curie temperature of the individual rare-earth metals. The analysis of ZFC – FC showed that the degree of magnetic irreversibility of the Fe–Nb–B (Y or Gd) alloys below 10% at lower temperatures. The Fe–Nb–B (Tb or Dy) alloys characterized by irreversible higher, increasing to ~50% at T → 2 K. ZFC (zero-fild cooled) – FC (fild cooled) at 10 T effect is also at high temperatures, which is associated apparently with specific magnetic domain structure of the amorphous alloys.
Authors and Affiliations
Mariia-Olena DANYLIAK, Myroslava KOVBUZ, Lidiia BOICHYSHYN
Keywords
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