Exchange-spring permanent magnet particles produced by spark-erosion

Mikkel Fougt Hansen; K. S. Vecchio; F. T. Parker; F. E. Spada; A. E. Berkowitz

doi:10.1063/1.1560559

Exchange-spring permanent magnet particles produced by spark-erosion

Mikkel Fougt Hansen, K. S. Vecchio, F. T. Parker, F. E. Spada, A. E. Berkowitz

University of California at San Diego

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

Abstract

Exchange-spring permanent magnet particles of composition Pr6.93Fe85.7B5.95Nb1.39 in at. % were prepared by spark-erosion in liquid argon. The best exchange-spring properties were achieved after vacuum annealing the as-sparked powders at 700 °C for ∼5 min, and did not change significantly for anneals up to 120 min. This behavior suggests that the equilibrium dimensions of the “hard” and “soft” phases were determined by the sizes of the spark-eroded particles in which they developed. The Pr2Fe14B phase developed as spheres, likely single crystals, in an α-Fe+Fe2B matrix. © 2003 American Institute of Physics.

Original language	English
Journal	Applied Physics Letters
Volume	82
Issue number	10
Pages (from-to)	1574
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.1560559
Publication status	Published - 2003
Externally published	Yes

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http://link.aip.org/link/APPLAB/v82/i10/p1574/s1

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title = "Exchange-spring permanent magnet particles produced by spark-erosion",

abstract = "Exchange-spring permanent magnet particles of composition Pr6.93Fe85.7B5.95Nb1.39 in at. % were prepared by spark-erosion in liquid argon. The best exchange-spring properties were achieved after vacuum annealing the as-sparked powders at 700 °C for ∼5 min, and did not change significantly for anneals up to 120 min. This behavior suggests that the equilibrium dimensions of the “hard” and “soft” phases were determined by the sizes of the spark-eroded particles in which they developed. The Pr2Fe14B phase developed as spheres, likely single crystals, in an α-Fe+Fe2B matrix. {\textcopyright} 2003 American Institute of Physics.",

author = "Hansen, {Mikkel Fougt} and Vecchio, {K. S.} and Parker, {F. T.} and Spada, {F. E.} and Berkowitz, {A. E.}",

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AU - Hansen, Mikkel Fougt

AU - Vecchio, K. S.

AU - Parker, F. T.

AU - Spada, F. E.

AU - Berkowitz, A. E.

PY - 2003

Y1 - 2003

N2 - Exchange-spring permanent magnet particles of composition Pr6.93Fe85.7B5.95Nb1.39 in at. % were prepared by spark-erosion in liquid argon. The best exchange-spring properties were achieved after vacuum annealing the as-sparked powders at 700 °C for ∼5 min, and did not change significantly for anneals up to 120 min. This behavior suggests that the equilibrium dimensions of the “hard” and “soft” phases were determined by the sizes of the spark-eroded particles in which they developed. The Pr2Fe14B phase developed as spheres, likely single crystals, in an α-Fe+Fe2B matrix. © 2003 American Institute of Physics.

AB - Exchange-spring permanent magnet particles of composition Pr6.93Fe85.7B5.95Nb1.39 in at. % were prepared by spark-erosion in liquid argon. The best exchange-spring properties were achieved after vacuum annealing the as-sparked powders at 700 °C for ∼5 min, and did not change significantly for anneals up to 120 min. This behavior suggests that the equilibrium dimensions of the “hard” and “soft” phases were determined by the sizes of the spark-eroded particles in which they developed. The Pr2Fe14B phase developed as spheres, likely single crystals, in an α-Fe+Fe2B matrix. © 2003 American Institute of Physics.

U2 - 10.1063/1.1560559

DO - 10.1063/1.1560559

M3 - Journal article

SN - 0003-6951

VL - 82

SP - 1574

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

ER -

Exchange-spring permanent magnet particles produced by spark-erosion

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