Home Technology Magnetic properties of Nd-Fe-Co-Al rapid solidification alloys
Article
Licensed
Unlicensed Requires Authentication

Magnetic properties of Nd-Fe-Co-Al rapid solidification alloys

  • Nguyen Huy Dan and Luu Tien Hung
Published/Copyright: August 22, 2013
Become an author with De Gruyter Brill
Submit Manuscript Author Information
International Journal of Materials Research
From the journal International Journal of Materials Research Volume 104 Issue 5

Abstract

Nd-Fe–Al–Co alloys with thickness of 0.05–4 mm were prepared by means of rapid solidification methods, suction-casting and melt-spinning, and investigated using X-ray diffraction, electron microscopy and magnetization measurements. With appropriate composition and quenching rate, the alloys behave as single-phase hard magnetic materials. Coercivity of the alloys can reach 7.6 kOe at room temperature and exceed 30 kOe at 100 K. When the thickness of the alloys is increased, multi-magnetic phase behavior is clearly performed and Nd2Fe15Al, NdAl2, Nd3Al and Nd phases are further crystallized. The optimal hard magnetic properties of the alloys closely related to a microstructure which consists of nanocrystallites with size of 10–30 nm dispersed in an amorphous matrix. The hard magnetic phase in the alloys belongs to the amorphous phase. The nanocrystallites, whose total volume fraction is very small in comparison with that of the amorphous phase, probably act as pinning centers, resulting in high coercivity behavior of the alloys.

Keywords: Rare-earth transition metal alloys; Bulk-amorphous materials; Hard-magnetic materials; Coercivity mechanism
* Correspondence address, Assoc. Prof. Dr. Nguyen Huy Dan, Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str. Caugiay, Hanoi, Vietnam, Tel.: +84-4-37567155, Fax: +84-4-37282064, E-mail:

References

[1] A.Inoue, T.Zhang, W.Zhang, A.Takeuchi: Mater. Trans., JIM, 37 (1996) 99.10.2320/matertrans1989.37.99Search in Google Scholar

[2] J.Ding, Y.Li, L.Wang: J. Phys. D: Appl. Phys., 32 (1999) 731. 10.1088/0022-3727/32/6/018Search in Google Scholar

[3] N.H.Dan, N.X.Phuc, N.M.Hong, J.Ding, D.Givord: J. Magn. Magn. Mater., 226–230 (2001) 1385.Search in Google Scholar

[4] N.H.Dan, N.X.Phuc, V.H.Ky, N.M.Hong, N.Chau, N.H.Luong, C.X.Huu, R.W.McCallum, M.J.Kramer, A.S.O’Connor, K.W.Dennis, L.H.Lewis, L.D.Tung: Mater. Res. Soc. Symp. Proc., 674 (2001) U2.6.1.10.1557/PROC-674-U2.6Search in Google Scholar

[5] B.C.Wei, W.H.Wang, M.X.Pan, B.H.Han, Z.R.Zhang, W.R.Hu: Phys. Rev. B64 (2001) 012406. 10.1103/PhysRevB.64.012406Search in Google Scholar

[6] R. SatoTurtelli, D.Triyono, R.Grossinger, H.Michor, J.H.Espina, J.P.Sinnecker, H.Sassik, J.Eckert, G.Kumar, Z.G.Sun, G.J.Fan: Phys. Rev. B66 (2002) 054441. 10.1103/PhysRevB.66.054441Search in Google Scholar

[7] Z.G.Sun, W.Loser, J.Eckert, K.H.Muller, L.Schultz: J. Magn. Magn. Mater., 261 (2003) 122. 10.1016/S0304-8853(02)01460-9Search in Google Scholar

[8] R.W.McCallum, L.H.Lewis, M.J.Kramer, K.W.Dennis: J. Magn. Magn. Mater.299 (2006) 265. 10.1016/j.jmmm.2005.04.013Search in Google Scholar

[9] D.Chen, A.Takeuchi, A.Inoue: J. Optoelectron. Ad. Mater.8 (2006) 1727.Search in Google Scholar

[10] R.Ortega-Zempoalteca, R.Valenzuela, I.Betancourt: Phys. Status Solidi C (2011) 1.Search in Google Scholar

[11] G.J.Fan, W.Löser, S.Roth, J.EcKert and K.Shultz: Appl. Phys. Lett., 75 (1999) 2984. 10.1063/1.124254Search in Google Scholar

[12] N.H.Dan, N.X.Phuc, L.V.Hong, H.Z.Kong, J.Ding: Physica B, 327 (2003) 159. 10.1016/S0921-4526(02)01717-9Search in Google Scholar

[13] L.Bessais, S.Sab, C.Djega-Mariadassou, N.H.Dan, N.X.Phuc: Phys. Rev. B, 70 (2004) 134401. 10.1103/PhysRevB.70.134401Search in Google Scholar

[14] Nguyen HuyDan: J. Magn. Magn. Mater.320 (2008) 429. 10.1016/j.jmmm.2007.06.027Search in Google Scholar

[15] I.Betancourt, R.Valenzuela: J. Appl. Phys.93 (2003) 6933. 10.1063/1.1558250Search in Google Scholar

[16] C.E.Rodrıguez Torres, A.F.Cabrera, F.H.Sanchez, O.V.Billoni, S.E.Urreta, L.M.Fabietti: Physica B354 (2004) 191. 10.1016/j.physb.2004.09.023Search in Google Scholar

[17] N.A.Tuan, V.H.Ky, N.H.Dan: J. Korean Phys. Soc.52 (2008) 1470. 10.3938/jkps.52.1470Search in Google Scholar

[18] X.H.Tan, H.Xu, H.Man, Y.J.Tang, L.P.Yang, Q.Bai: J. Appl. Phys.109 (2011) 083927. 10.1063/1.3573510Search in Google Scholar

Received: 2011-10-6
Accepted: 2012-8-30
Published Online: 2013-08-22
Published in Print: 2013-05-10

© 2013, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Martensite transformation of sub-micron retained austenite in ultra-fine grained manganese transformation-induced plasticity steel
  5. Isothermal transformation of β-phase in Cu-rich Cu-Al-Sn alloys
  6. The effect of nitrogen on the coarsening rate of precipitate phases in iron-based alloys with chromium and vanadium: experimental and theoretical investigations
  7. Phase diagram investigation of the Sn-InxAgyCuz (x:y:z = 7:2:1) section in the Ag-In-Sn-Cu system
  8. Grain refinement and mechanical properties of low-carbon steel by means of equal channel angular pressing and annealing
  9. Thermophysical properties of solid phase palladium over a wide temperature range
  10. Magnetic properties of Nd-Fe-Co-Al rapid solidification alloys
  11. Synthesis of Ir1-xRex (0.15 ≤ x ≤ 0.40) solid solutions under high-pressure and high-temperature
  12. Preparation and magnetic characterization of Fe/metal oxide nanocomposite particles by means of hydrogen reduction assisted ultrasonic spray pyrolysis (USP-HR)
  13. Biofilm formation and corrosion resistance of Ni/SiC nanocomposite layers
  14. Characterization of electrospun fibrous scaffold produced from Indian eri silk fibroin
  15. Hydrothermal synthesis of nano nickel phosphides and investigation of their thermal stability
  16. Effects of PVP and CTAB surfactants on the morphology of cerium oxide nanoparticles synthesized via co-precipitation method
  17. DGM News
  18. DGM News
https://doi.org/10.3139/146.110891
Keywords for this article
Rare-earth transition metal alloys; Bulk-amorphous materials; Hard-magnetic materials; Coercivity mechanism

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Martensite transformation of sub-micron retained austenite in ultra-fine grained manganese transformation-induced plasticity steel
  5. Isothermal transformation of β-phase in Cu-rich Cu-Al-Sn alloys
  6. The effect of nitrogen on the coarsening rate of precipitate phases in iron-based alloys with chromium and vanadium: experimental and theoretical investigations
  7. Phase diagram investigation of the Sn-InxAgyCuz (x:y:z = 7:2:1) section in the Ag-In-Sn-Cu system
  8. Grain refinement and mechanical properties of low-carbon steel by means of equal channel angular pressing and annealing
  9. Thermophysical properties of solid phase palladium over a wide temperature range
  10. Magnetic properties of Nd-Fe-Co-Al rapid solidification alloys
  11. Synthesis of Ir1-xRex (0.15 ≤ x ≤ 0.40) solid solutions under high-pressure and high-temperature
  12. Preparation and magnetic characterization of Fe/metal oxide nanocomposite particles by means of hydrogen reduction assisted ultrasonic spray pyrolysis (USP-HR)
  13. Biofilm formation and corrosion resistance of Ni/SiC nanocomposite layers
  14. Characterization of electrospun fibrous scaffold produced from Indian eri silk fibroin
  15. Hydrothermal synthesis of nano nickel phosphides and investigation of their thermal stability
  16. Effects of PVP and CTAB surfactants on the morphology of cerium oxide nanoparticles synthesized via co-precipitation method
  17. DGM News
  18. DGM News
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2026 De Gruyter Brill
Downloaded on 22.2.2026 from https://www.degruyterbrill.com/document/doi/10.3139/146.110891/html
Scroll to top button