Effect of grain growth inhibitors on the hysteresis properties of Nd10Fe82C6B2 alloys

M. Daniil; H. Okumura; G. C. Hadjipanayis; D. J. Sellmyer

doi:10.1109/INTMAG.2002.1000828

Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys

M. Daniil, H. Okumura, G. C. Hadjipanayis, D. J. Sellmyer

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In our previous work (IEEE Trans. Mag. vol.36, p.3315, (2000)), we studied the effect of carbon on the formation and magnetic properties of nanocomposite Nd₂Fe₁₄(C,B)/α-Fe magnets. In the Nd₁₀Fe₈₂B_8-xC_x (x=0,2,4,5, 6,7) as-spun ribbons for x=0-4 have a majority 2:14:1 phase with some α-Fe, whereas, for larger x the mixture of 2:14:1 phase and α-Fe is obtained only at certain wheel speeds range. Beyond this range, the 2:17 phase and a significant amount of α-Fe were obtained instead, which transform into the tetragonal 2:14:1 phase after annealing. Magnetic measurements showed a slight enhancement of the coercivity (8.7 kOe) for x=2 and then a decrease for larger x. The drop of the coercivity with carbon content can be related to the change in the crystallization behavior and the coarsening of the microstructure. In this work, we study the effect of small substitutions (i.e. Zr, Nb, Cr, Ga, etc.) for iron, in melt-spun Nd₁₀Fe_82-xM_xB₂C₆ in order to optimize their microstructure and therefore their magnetic hysteresis properties.

Original language	English (US)
Title of host publication	INTERMAG Europe 2002 - IEEE International Magnetics Conference
Editors	J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	0780373650, 9780780373655
DOIs	https://doi.org/10.1109/INTMAG.2002.1000828
State	Published - 2002
Event	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands Duration: Apr 28 2002 → May 2 2002

Publication series

Name	INTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/Territory	Netherlands
City	Amsterdam
Period	4/28/02 → 5/2/02

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Surfaces, Coatings and Films

Access to Document

10.1109/INTMAG.2002.1000828

Cite this

Daniil, M., Okumura, H., Hadjipanayis, G. C., & Sellmyer, D. J. (2002). Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys. In J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, J. De Boeck, & R. Wood (Eds.), INTERMAG Europe 2002 - IEEE International Magnetics Conference Article 1000828 (INTERMAG Europe 2002 - IEEE International Magnetics Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1000828

Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys. / Daniil, M.; Okumura, H.; Hadjipanayis, G. C. et al.
INTERMAG Europe 2002 - IEEE International Magnetics Conference. ed. / J. Fidler; B. Hillebrands; C. Ross; D. Weller; L. Folks; E. Hill; M. Vazquez Villalabeitia; J. A. Bain; Jo De Boeck; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. 1000828 (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Daniil, M, Okumura, H, Hadjipanayis, GC & Sellmyer, DJ 2002, Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys. in J Fidler, B Hillebrands, C Ross, D Weller, L Folks, E Hill, M Vazquez Villalabeitia, JA Bain, J De Boeck & R Wood (eds), INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1000828, INTERMAG Europe 2002 - IEEE International Magnetics Conference, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 4/28/02. https://doi.org/10.1109/INTMAG.2002.1000828

Daniil M, Okumura H, Hadjipanayis GC, Sellmyer DJ. Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys. In Fidler J, Hillebrands B, Ross C, Weller D, Folks L, Hill E, Vazquez Villalabeitia M, Bain JA, De Boeck J, Wood R, editors, INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc. 2002. 1000828. (INTERMAG Europe 2002 - IEEE International Magnetics Conference). doi: 10.1109/INTMAG.2002.1000828

Daniil, M. ; Okumura, H. ; Hadjipanayis, G. C. et al. / Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ alloys. INTERMAG Europe 2002 - IEEE International Magnetics Conference. editor / J. Fidler ; B. Hillebrands ; C. Ross ; D. Weller ; L. Folks ; E. Hill ; M. Vazquez Villalabeitia ; J. A. Bain ; Jo De Boeck ; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

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abstract = "In our previous work (IEEE Trans. Mag. vol.36, p.3315, (2000)), we studied the effect of carbon on the formation and magnetic properties of nanocomposite Nd2Fe14(C,B)/α-Fe magnets. In the Nd10Fe82B8-xCx (x=0,2,4,5, 6,7) as-spun ribbons for x=0-4 have a majority 2:14:1 phase with some α-Fe, whereas, for larger x the mixture of 2:14:1 phase and α-Fe is obtained only at certain wheel speeds range. Beyond this range, the 2:17 phase and a significant amount of α-Fe were obtained instead, which transform into the tetragonal 2:14:1 phase after annealing. Magnetic measurements showed a slight enhancement of the coercivity (8.7 kOe) for x=2 and then a decrease for larger x. The drop of the coercivity with carbon content can be related to the change in the crystallization behavior and the coarsening of the microstructure. In this work, we study the effect of small substitutions (i.e. Zr, Nb, Cr, Ga, etc.) for iron, in melt-spun Nd10Fe82-xMxB2C6 in order to optimize their microstructure and therefore their magnetic hysteresis properties.",

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