Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles

G. Hrkac; T. G. Woodcock; K. T. Butler; L. Saharan; M. T. Bryan; T. Schrefl; O. Gutfleisch

doi:10.1016/j.scriptamat.2013.08.029

Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles

G. Hrkac, T. G. Woodcock, K. T. Butler, L. Saharan, M. T. Bryan, T. Schrefl, O. Gutfleisch

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

85 Citations (SciVal)

Abstract

Aberration-corrected transmission electron microscopy, combined with atomistic simulations, has been used to study the anisotropy profiles of interfaces between metallic Nd (fcc, dhcp), Nd2O3 (hP5, cI80), NdO and the Nd2Fe14B phase. The results show that the dhcp Nd and Nd2O3-hP5 phases have a more detrimental effect on coercivity than fcc Nd, Nd2O3-cI80 and NdO. The coercivity change is rooted in distortions in the Nd2Fe14B crystal lattice; the depth and magnitude of this change is a function of orientation and type of Nd-rich phase

Original language	English
Pages (from-to)	35-38
Number of pages	4
Journal	Scripta Materialia
Volume	70
Issue number	1
Early online date	6 Sept 2013
DOIs	https://doi.org/10.1016/j.scriptamat.2013.08.029
Publication status	Published - 1 Jan 2014

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title = "Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles",

abstract = "Aberration-corrected transmission electron microscopy, combined with atomistic simulations, has been used to study the anisotropy profiles of interfaces between metallic Nd (fcc, dhcp), Nd2O3 (hP5, cI80), NdO and the Nd2Fe14B phase. The results show that the dhcp Nd and Nd2O3-hP5 phases have a more detrimental effect on coercivity than fcc Nd, Nd2O3-cI80 and NdO. The coercivity change is rooted in distortions in the Nd2Fe14B crystal lattice; the depth and magnitude of this change is a function of orientation and type of Nd-rich phase",

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TY - JOUR

T1 - Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles

AU - Hrkac, G.

AU - Woodcock, T. G.

AU - Butler, K. T.

AU - Saharan, L.

AU - Bryan, M. T.

AU - Schrefl, T.

AU - Gutfleisch, O.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Aberration-corrected transmission electron microscopy, combined with atomistic simulations, has been used to study the anisotropy profiles of interfaces between metallic Nd (fcc, dhcp), Nd2O3 (hP5, cI80), NdO and the Nd2Fe14B phase. The results show that the dhcp Nd and Nd2O3-hP5 phases have a more detrimental effect on coercivity than fcc Nd, Nd2O3-cI80 and NdO. The coercivity change is rooted in distortions in the Nd2Fe14B crystal lattice; the depth and magnitude of this change is a function of orientation and type of Nd-rich phase

AB - Aberration-corrected transmission electron microscopy, combined with atomistic simulations, has been used to study the anisotropy profiles of interfaces between metallic Nd (fcc, dhcp), Nd2O3 (hP5, cI80), NdO and the Nd2Fe14B phase. The results show that the dhcp Nd and Nd2O3-hP5 phases have a more detrimental effect on coercivity than fcc Nd, Nd2O3-cI80 and NdO. The coercivity change is rooted in distortions in the Nd2Fe14B crystal lattice; the depth and magnitude of this change is a function of orientation and type of Nd-rich phase

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DO - 10.1016/j.scriptamat.2013.08.029

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Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles

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