Effect of grain growth inhibitors on the hysteresis properties of Nd10Fe82C6B2 melt-spun alloys

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

doi:10.1109/TMAG.2002.803315

Effect of grain growth inhibitors on the hysteresis properties of Nd₁₀Fe₈₂C₆B₂ melt-spun alloys

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

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

An effort has been made to improve the coercivity of nanocomposite Nd₁₀ Fe₈₂ C₆ B₂ alloys, using small amounts (up to 1 at%) of Cr, Ti, Nb, Zr, and Ga. X-ray studies revealed that the amount of α-Fe phase in both as-spun and annealed ribbons was significantly reduced for Nb and Zr substitutions, but increased for all the other substitutions. From the magnetic properties point of view, Zr (1 at%) was proven to be the most advantageous of all, since it increased the coercivity of annealed ribbons from 3.2 to 4.8 kOe and the maximum energy product from 5.8 to 13 MGOe. This improvement is associated with the much finer and more uniform microstructure as was revealed by transmission electron microscopy.

Original language	English (US)
Pages (from-to)	2973-2975
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	38
Issue number	5 I
DOIs	https://doi.org/10.1109/TMAG.2002.803315
State	Published - Sep 2002
Event	2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands Duration: Apr 28 2002 → May 2 2002

Keywords

2:14:1 carbides
Grain growth inhibitors
Nanocomposite magnets

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2002.803315

Cite this

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title = "Effect of grain growth inhibitors on the hysteresis properties of Nd10Fe82C6B2 melt-spun alloys",

abstract = "An effort has been made to improve the coercivity of nanocomposite Nd10 Fe82 C6 B2 alloys, using small amounts (up to 1 at%) of Cr, Ti, Nb, Zr, and Ga. X-ray studies revealed that the amount of α-Fe phase in both as-spun and annealed ribbons was significantly reduced for Nb and Zr substitutions, but increased for all the other substitutions. From the magnetic properties point of view, Zr (1 at%) was proven to be the most advantageous of all, since it increased the coercivity of annealed ribbons from 3.2 to 4.8 kOe and the maximum energy product from 5.8 to 13 MGOe. This improvement is associated with the much finer and more uniform microstructure as was revealed by transmission electron microscopy.",

keywords = "2:14:1 carbides, Grain growth inhibitors, Nanocomposite magnets",

author = "M. Daniil and Y. Zhang and H. Okumura and Hadjipanayis, {G. C.} and Sellmyer, {D. J.}",

note = "Funding Information: Manuscript received February 15, 2002; revised May 27, 2002. This work was supported by the U.S. Department of Energy under Grant DE-FG02-90ER4513.; 2002 International Magnetics Conference (Intermag 2002) ; Conference date: 28-04-2002 Through 02-05-2002",

year = "2002",

month = sep,

doi = "10.1109/TMAG.2002.803315",

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journal = "IEEE Transactions on Magnetics",

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TY - JOUR

T1 - Effect of grain growth inhibitors on the hysteresis properties of Nd10Fe82C6B2 melt-spun alloys

AU - Daniil, M.

AU - Zhang, Y.

AU - Okumura, H.

AU - Hadjipanayis, G. C.

AU - Sellmyer, D. J.

N1 - Funding Information: Manuscript received February 15, 2002; revised May 27, 2002. This work was supported by the U.S. Department of Energy under Grant DE-FG02-90ER4513.

PY - 2002/9

Y1 - 2002/9

N2 - An effort has been made to improve the coercivity of nanocomposite Nd10 Fe82 C6 B2 alloys, using small amounts (up to 1 at%) of Cr, Ti, Nb, Zr, and Ga. X-ray studies revealed that the amount of α-Fe phase in both as-spun and annealed ribbons was significantly reduced for Nb and Zr substitutions, but increased for all the other substitutions. From the magnetic properties point of view, Zr (1 at%) was proven to be the most advantageous of all, since it increased the coercivity of annealed ribbons from 3.2 to 4.8 kOe and the maximum energy product from 5.8 to 13 MGOe. This improvement is associated with the much finer and more uniform microstructure as was revealed by transmission electron microscopy.

AB - An effort has been made to improve the coercivity of nanocomposite Nd10 Fe82 C6 B2 alloys, using small amounts (up to 1 at%) of Cr, Ti, Nb, Zr, and Ga. X-ray studies revealed that the amount of α-Fe phase in both as-spun and annealed ribbons was significantly reduced for Nb and Zr substitutions, but increased for all the other substitutions. From the magnetic properties point of view, Zr (1 at%) was proven to be the most advantageous of all, since it increased the coercivity of annealed ribbons from 3.2 to 4.8 kOe and the maximum energy product from 5.8 to 13 MGOe. This improvement is associated with the much finer and more uniform microstructure as was revealed by transmission electron microscopy.

KW - 2:14:1 carbides

KW - Grain growth inhibitors

KW - Nanocomposite magnets

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