NdFeB Permanent Magnets with Various Nd Content

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

Abstracts

EN

Three kinds of commercial Nd-Fe-B based materials were compared using ^{57}Fe Mössbauer spectroscopy and X-ray analysis: near the Nd_2Fe_{14}B stoichiometry and with both lowered and raised Nd content. Magnetically hard Nd_2Fe_{14}B is present in all three materials. In the Nd-low material it is accompanied with the magnetically soft Fe_3B phase, building the nanocomposite structure. In the Nd-rich sample the overstoichiometric Nd atoms seem to build separate phase of Fe-Nd solid solution. None of the materials contain significant content of phases degrading magnetic characteristics, with except of minor Nd_{1.1}Fe_4B_4 one.

Keywords

EN

61.05.cp; 76.80.+y; 75.50.-y; 81.07.-b; 81.40.Rs

Discipline

• 75.50.-y: Studies of specific magnetic materials
• 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)
• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 61.05.cp: X-ray diffraction
• 81.40.Rs: Electrical and magnetic properties related to treatment conditions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 279-282

Dates

published

2008-01

received

2007-07-09

Contributors

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

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

References

• 1. D. Lee, J.S. Hilton, S. Liu, Y. Zhang, G.C. Hadjipanayis, C.H. Chen, IEEE Trans. Magn. 39, 2947 (2003)
• 2. R. Zhang, Y. Liu, J. Ye, W. Yang, Y. Ma, S. Gao, J. Alloys Comp. 427, 78 (2007)
• 3. Z.W. Liu, H.A. Davies, J. Alloys Comp. 424, 255 (2006)
• 4. N. Talijan, T.Žák, J. Stajić-Trošić, V. Menushenkov, J. Magn. Magn. Mater. 258-259, 577 (2003)
• 5. N. Talijan, V.Ćosović, J. Stajić-Trošić, T.Žák, J. Magn. Magn. Mater. 272-276, e1911 (2004)

Identifiers

DOI

10.12693/APhysPolA.113.279