In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T

Ryota Kobayashi; Yoshifuru Mitsui; Kohoki Takahashi; Satoshi Uda; Keiichi Koyama

doi:10.1109/TMAG.2018.2872105

In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T

Ryota Kobayashi, Yoshifuru Mitsui, Kohoki Takahashi, Satoshi Uda, Keiichi Koyama

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

2 Citations (Scopus)

Abstract

An in-field annealing-quenching furnace utilized for magnets with a 52 mm experimental bore was developed. The cooling rate from 663 to 473 K was 38 K/s under a magnetic field of 19 T. The phase boundary between the ferromagnetic MnBi and the paramagnetic Mn_1.08Bi was examined using this furnace. The phase boundary was confirmed around 663 K. It was found that the MnBi grain became elongated during recrystallization under 19 T.

Original language	English
Article number	1000204
Journal	IEEE Transactions on Magnetics
Volume	55
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2018.2872105
Publication status	Published - 2019 Feb

Keywords

Ferromagnetic material
high magnetic fields
in-field quenching

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2018.2872105

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title = "In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T",

abstract = "An in-field annealing-quenching furnace utilized for magnets with a 52 mm experimental bore was developed. The cooling rate from 663 to 473 K was 38 K/s under a magnetic field of 19 T. The phase boundary between the ferromagnetic MnBi and the paramagnetic Mn1.08Bi was examined using this furnace. The phase boundary was confirmed around 663 K. It was found that the MnBi grain became elongated during recrystallization under 19 T.",

keywords = "Ferromagnetic material, high magnetic fields, in-field quenching",

author = "Ryota Kobayashi and Yoshifuru Mitsui and Kohoki Takahashi and Satoshi Uda and Keiichi Koyama",

note = "Funding Information: ACKNOWLEDGMENT This work was supported by JSPS KAKENHI under Grant 16H04547. In-field annealing of 19 T was performed at High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University, Sendai, Japan. Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

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doi = "10.1109/TMAG.2018.2872105",

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T1 - In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T

AU - Kobayashi, Ryota

AU - Mitsui, Yoshifuru

AU - Takahashi, Kohoki

AU - Uda, Satoshi

AU - Koyama, Keiichi

N1 - Funding Information: ACKNOWLEDGMENT This work was supported by JSPS KAKENHI under Grant 16H04547. In-field annealing of 19 T was performed at High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University, Sendai, Japan. Publisher Copyright: © 1965-2012 IEEE.

PY - 2019/2

Y1 - 2019/2

N2 - An in-field annealing-quenching furnace utilized for magnets with a 52 mm experimental bore was developed. The cooling rate from 663 to 473 K was 38 K/s under a magnetic field of 19 T. The phase boundary between the ferromagnetic MnBi and the paramagnetic Mn1.08Bi was examined using this furnace. The phase boundary was confirmed around 663 K. It was found that the MnBi grain became elongated during recrystallization under 19 T.

AB - An in-field annealing-quenching furnace utilized for magnets with a 52 mm experimental bore was developed. The cooling rate from 663 to 473 K was 38 K/s under a magnetic field of 19 T. The phase boundary between the ferromagnetic MnBi and the paramagnetic Mn1.08Bi was examined using this furnace. The phase boundary was confirmed around 663 K. It was found that the MnBi grain became elongated during recrystallization under 19 T.

KW - Ferromagnetic material

KW - high magnetic fields

KW - in-field quenching

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In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T

Abstract

Keywords

ASJC Scopus subject areas

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