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2012 | 121 | 5-6 | 1266-1269
Article title

Influence of Transition and Rare Earth Elements on Magnetic Properties of Fe-Nb-B-M (M~=~Ni, Ag, Gd,~Tb) Bulk Nanocrystalline Alloys

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Abstracts
EN
In this work we present magnetic properties of the (Fe_{80}Nb_6B_{14})_{1-x}M_x (where M = Ni, Ag, Gd, Tb and x = 0.08, 0.16, 0.32) bulk nanocrystalline alloys prepared by making use of mould casting technique. The applied preparation technique is favorable to nanocrystallization of the alloys with mean diameters of crystallites ranged from about 10 nm to 30 nm. Phase identification reveals a formation of ternary RE_2Fe_{14}B and binary REFe_2 phases dependently on the alloy composition. It was found that for the alloys with Ag addition magnetic moment of Fe atom increases from 2.26 μ_{B} to 3.36 μ_{B} for x = 0.08 and x = 0.32, respectively. For Ni addition this quantity decreases with increasing x due to appearing of Fe-Ni (fcc) phases. For Gd, Tb additions the alloys are ferrimagnetic with compensation composition ranged between x = 0.08 and x = 0.16. The both rare earth alloying additions cause a significant magnetic hardening especially in the case of Tb.
Keywords
Contributors
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
  • Laboratoire de Physique de l'Etat Condensé, UMR CNRS 6087, Université du Maine, 72085 Le Mans cedex 9, France
author
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n5-6p85kz
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