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

• Authors: G. Ziółkowski , N. Randrianantoandro , A. Chrobak , J. Klimontko , M. Kądziołka-Gaweł , G. Haneczok
• Languages of publication: EN

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

EN

81.07.Bc; 75.50.Tt; 75.60.-d; 76.80.+y

Discipline

• 75.60.-d: Domain effects, magnetization curves, and hysteresis(for dynamics of domain structures, see 75.78.Fg)
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 75.50.Tt: Fine-particle systems; nanocrystalline materials
• 81.07.Bc: Nanocrystalline materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1266-1269

Dates

published

2012-05

Contributors

author

G. Ziółkowski

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

N. Randrianantoandro

• Laboratoire de Physique de l'Etat Condensé, UMR CNRS 6087, Université du Maine, 72085 Le Mans cedex 9, France

author

A. Chrobak

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

J. Klimontko

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Kądziołka-Gaweł

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

G. Haneczok

• Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

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Identifiers

DOI

10.12693/APhysPolA.121.1266