Thermomagnetic Behaviour and Microstructure of a Rapidly Quenched Nd_{4.5}Fe_{77}B_{18.5} Alloy

• Authors: N. Talijan , V. Ćosović , A. Grujić , J. Stajić-Trošić , T. Žák
• Languages of publication: EN

Abstracts

EN

Changes in the phase composition and crystallite size, as well as changes in the magnetic behaviour of Nd_{4.5}Fe_{77}B_{18.5} alloy, caused by thermomagnetic measurements, was observed in regard of the optimal magnetic state of this alloy. In the optimized magnetic state, the formed nanocomposite consisted of Fe_3B/Nd_2Fe_{14}B and partly of α-Fe with a mean crystallite size < 30 nm, as determined by X-ray diffraction and transmission electron microscopy. An increased amount of α-Fe, the presence of Nd_2O_3 and different Fe-B phases, as well as an increase in the mean crystallite size were observed after thermomagnetic measurements had caused a quality loss of the hard magnetic properties.

Keywords

EN

81.40.Rs

Discipline

• 81.40.Rs: Electrical and magnetic properties related to treatment conditions

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 525-528

Dates

published

2008-01

received

2007-07-09

Contributors

author

N. Talijan

• Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia

author

V. Ćosović

• Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia

author

A. Grujić

• Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia

author

J. Stajić-Trošić

• Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia

author

T. Žák

• Institute of Physics of Materials, Academy of Sciences of the Czech Rep., v.v.i., Žižkova 22, 616 62 Brno, Czech Republic

References

• 1. C.J. Yang, E.B. Park, J. Magn. Magn. Mater. 166, 243 (1997)
• 2. J. Rodriguez-Carvajal, 1998 FullProf computer program;, ftp://charybde.saclay.cea.fr/pub/divers/fullprof.98/windows/winfp98.zip.
• 3. V.Ćosović, T.Žák, N. Talijan, A. Grujić, J. Stajić-Trošić, J. Alloys Comp., doi:10.1016/j.jallcom.2007.02.018;in press
• 4. V.Ćosović, A. Grujić, J. Stajić-Trošić, V. Spasojević, N. Talijan, Mater. Sci. Forum 555, 527 (2007)

Identifiers

DOI

10.12693/APhysPolA.113.525