Export file:


  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text


  • Citation Only
  • Citation and Abstract

Magnetic properties of Sm5Fe17 melt-spun ribbons and their borides

1 Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan;
2 Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan

Special Issues: Rare-earth-based materials

Sm5Fe17 melt-spun ribbons exhibited low coercivity and partly or mostly consisted of the amorphous phase. Annealing of Sm5Fe17 melt-spun ribbon resulted in the formation of the Sm5Fe17 phase. The annealed Sm5Fe17 melt-spun ribbon exhibited a high coercivity. It was found that the addition of B to the Sm5Fe17 alloy resulted in the promotion of the Sm2Fe14B phase. Annealed Sm5Fe17Bx (x = 0.5) melt-spun ribbons consisted of the Sm5Fe17 phase together with the Sm2Fe14B and SmFe2 phases. On the other hand, annealed Sm5Fe17Bx (x = 1.0-1.5) melt-spun ribbons consisted of the Sm2Fe14B and SmFe2 phases without the Sm5Fe17 phase. The resultant Sm5Fe17Bx (x = 1.0-1.5) melt-spun ribbons still showed a coercivity of around 2 kOe. The annealed Sm5Fe17 melt-spun ribbon exhibited a high coercivity over 25 kOe and a remanence of 40 emu/g, whereas the annealed Sm5Fe17B1.0 melt-spun ribbon exhibited a high remanence of 65 emu/g and a coercivity of 2.0 kOe.
  Article Metrics


1. Kamprath H, Liu NC, Hedge H, et al. (1990) Magnetic properties of Sm-Fe-Ti-Al sputtered films with i H c greater than 30 kOe. J Appl Phys 67: 4948-4950.    

2. Stadelmaier HH, Schneider G, Henig ETh, et al. (1991) Magnetic Fe17R5 in the Fe-Nd and Fe(-Ti)-Sm systems, and other phases in Fe-Nd. Mater Lett 10: 303-309.    

3. Katter M, Wecker J, Schultz L, et al. (1990) Preparation of highly coercive Sm-Fe-Ti by rapid quenching. Appl Phys Lett 56: 1377-1379.    

4. Cadieu FJ, Hegde H, Rani R, et al. (1991) Cell volume expansion in Sm5(Fe, T)17, T = Ti, V, magnetic phases. Mater Lett 11: 284-285.    

5. Saito T, Ichihara M (2007) Synthesis and magnetic properties of Sm5Fe17 hard magnetic phase. Scripta Mater 57:457-460.    

6. Saito T (2007) Synthesis and magnetic properties of (Nd1-xSmx)5Fe17 (x = 0-1) phase. Appl Phys Lett 91: 072503-1-072503-3.    

7. Saito T (2007) High coercivity in Sm5Fe17 melt-spun ribbon. J Alloys Compd 440: 315-318.    

8. Saito T, Miyoshi H, Hamane DN (2012) Structures and magnetic properties of Sm5Fe17 melt-spun ribbon. J Appl Phys 111: -.

9. Kim DH, Zhang Y, Hadjipanayis GC (1998) Magnetic properties of Sm-Co-B-based nanocomposite magnets. J Magn Magn Mater 190: 302-306.    

10. You C, Zhang ZD, Sun XK, et al. (2001) Phase transformation and magnetic properties of SmCo7-xBx alloys prepared by mechanical alloying. J Magn Magn Mater 234: 395-400.    

11. Gapalan R, Xiong XY, Ohkubo T, et al. (2005) Nanoscale microstructure and magnetic properties of melt-spun Sm(Co0.725Fe0.1Cu0.12Zr0.04B0.015)7.4 ribbons. J Magn Magn Mater 295: 7-20.    

12. Herbst JF (1991) R2Fe14B materials: Intrinsic properties and technological aspects. Rev Mod Phys 63: 819-898.    

13. Buschow KHJ (1971) The samarium-iron system. J Less-Common Metals 25: 131-134.    

14. Kim HT, Xiao QF, Zhang ZD, et al. (1997) Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides. J Magn Magn Mater 173: 295-301.    

Copyright Info: © 2015, Tetsuji Saito, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Article outline

Show full outline
Copyright © AIMS Press All Rights Reserved