High-coercivity ultrafine-grained anisotropic Nd-Fe-B magnets processed by hot deformation and the Nd-Cu grain boundary diffusion process

Acta Materialia

Volumn 61, Issue 17, 2013, Pages 6622-6634

  Sepehri Amin, H ^a,b   Ohkubo, T ^a,b   Nagashima, S ^c   Yano, M ^c   Shoji, T ^c   Kato, A ^c   Schrefl, T ^d   Hono, K ^a,b  

^a NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

^b JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

^c TOYOTA MOTOR CORPORATION   (Japan)

^d University of Applied Science St Pölten   (Austria)

Author keywords

Atom probe tomography; Coercivity; Grain boundary; Nd Fe B; Permanent magnets

Indexed keywords

ATOM PROBE TOMOGRAPHY; EUTECTIC SOLIDIFICATION; FERROMAGNETIC ELEMENTS; GRAIN-BOUNDARY DIFFUSION; INTERGRANULAR PHASIS; LAMELLAE STRUCTURES; MICROMAGNETIC SIMULATIONS; ND-FE-B;

ANISOTROPY; GRAIN BOUNDARIES; NEODYMIUM ALLOYS; PERMANENT MAGNETS; SCANNING ELECTRON MICROSCOPY; SOLIDIFICATION; TEXTURES;

COERCIVE FORCE;

EID: 84883744038     PISSN: 13596454     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.actamat.2013.07.049     Document Type: Article

References (34)

1. S. Hirosawa, K. Tokuhara, Y. Matsuura, H. Yamamoto, S. Fujimura, and M. Sagawa J Magn Magn Mater 61 1986 363 369
2. H. Kronmüller, K.D. Drust, and M. Sagawa J Magn Magn Mater 87 1988 291
3. J. Fidler, and J. Bernardi J Appl Phys 70 1991 6456
4. H.J. Engelmann, A.S. Kim, and G. Thomas Scripta Mater 36 1997 55
5. J. Bernardi, and J. Fidler J Appl Phys 76 1994 6241
6. F. Vial, F. Joly, E. Nevalainen, M. Sagawa, K. Hiraga, and K.T. Park J Magn Magn Mater 242-245 2002 1329
7. H. Sepehri-Amin, T. Ohkubo, T. Nishiuchi, S. Hirosawa, and K. Hono Scripta Mater 63 2010 1124
8. C. Mishima, K. Noguchi, M. Yamazaki, H. Mitarai, and Y. Honkura Proceedings of the 21th Workshop on Rare-Earth Permanent Magnets and Their Applications 2010 Slovenia Bled p. 253
9. H. Nakamura, K. Hirota, M. Shimao, T. Minowa, and M. Honshima IEEE Trans. Magn. 41 2005 3844
10. K. Hirota, H. Nakamura, T. Minowa, and M. Honshima IEEE Trans. Magn. 42 2006 2909
11. N. Watanabe, M. Itakura, N. Kuwano, D. Li, S. Suzuki, and K. Machida Mater. Trans. 48 2007 915
12. D. Li, S. Suzuki, Y. Kawasaki, and K. Machida Jpn. J. Appl. Phys. 48 2008 7876
13. K. Hono, and H. Sepehri-Amin Scripta Mater 67 2012 530
14. R.W. Lee Appl Phys Lett 46 1985 790
15. R.K. Mishra J Appl Phys 62 1987 967
16. A. Kirchner, J. Thomas, O. Gutfleisch, D. Hinz, K.H. Müller, and L. Schultz J All Comp 365 2004 286
17. H. Haizuka, and A. Hattori Denki Seiko 82 2011 85
18. J. Liu, H. Sepehri-Amin, T. Ohkubo, K. Hioki, A. Hattori, and T. Schrefl Acta Mater. 61 2013 5387
19. J.D. Livingston J Appl Phys 57 1985 4137
20. L.H. Lewis, Y. Zhu, and D.O. Welch Scripta Metall Mater 33 1995 1775
21. L.H. Lewis, Y. Zhu, and D.O. Welch J Appl Phys 76 1994 6235
22. C.D. Fuerst, and E.G. Brewer Appl Phys Lett 56 1990 2252
23. M. Sagawa, S. Fujimura, H. Yamamoto, T. Matsuura, and S. Hirosawa J Appl Phys 57 1985 4094
24. T. Schrefl, and J. Fidler J Appl Phys 83 1998 6262
25. H. Kronmüller Phys Status Solidi B 130 1985 197
26. Hock S. PhD thesis, Max-Planck-Institute for Metals Research, Institute of Physics, 1988, p. 118.
27. F.E. Pinkerton, and C.D. Fuerst J Magn Magn Mater 89 1990 139
28. K. Hono Prog Mater Sci 47 2002 621
29. H. Sepehri-Amin, T. Ohkubo, T. Shima, and K. Hono Acta Mater 60 2012 819
30. P.R. Subramanian, and D.E. Laughlin Bulletin of Alloy Phase Diagrams 9 1988 362
31. H. Okamoto J phase Equil 14 1993 122
32. H. Sepehri-Amin, D. Pranhu, M. Hayashi, T. Ohkubo, K. Hioki, and A. Hattori Scripta Mater 68 2013 167
33. G. Wulff Z Kristallogr 34 1901 449
34. C. Herring Phys Rev 82 1951 87