Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

Jun Ogawa; Satoshi Fukui; Tetsuo Oka; Naoto Shidara; Ryousuke Iwashita; Masayoshi Ohya

doi:10.1109/TASC.2016.2516349

Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

Jun Ogawa, Satoshi Fukui, Tetsuo Oka, Naoto Shidara, Ryousuke Iwashita, Masayoshi Ohya

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

Abstract

In this paper, we applied a magnetic field in multiple directions to a Bi2223/Ag tape and measured the transport current and magnetization losses in each position using the four terminal and pickup coil methods. We rotated the tape face and the tape axis to the ac magnetic field by 15° segments. We report the magnetic field direction dependence of ac losses. When the magnetic field direction is parallel to the tape face and the tape axis is rotated in the magnetic field, each magnetization loss shows a crossing point. When the magnetic field is not parallel, the magnetization losses are increased as the angle of the tape axis to the magnetic field increases. We compared the total losses with additions of the transport current loss without the magnetic field and the magnetization loss without transport current in multiple magnetic field directions, and these results did not correspond.

Original language	English
Article number	7377072
Journal	IEEE Transactions on Applied Superconductivity
Volume	26
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2016.2516349
Publication status	Published - 2016 Jun 1
Externally published	Yes

Keywords

AC loss
High temperature superconductor
multiple magnetic field direction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2016.2516349

Cite this

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title = "Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape",

abstract = "In this paper, we applied a magnetic field in multiple directions to a Bi2223/Ag tape and measured the transport current and magnetization losses in each position using the four terminal and pickup coil methods. We rotated the tape face and the tape axis to the ac magnetic field by 15° segments. We report the magnetic field direction dependence of ac losses. When the magnetic field direction is parallel to the tape face and the tape axis is rotated in the magnetic field, each magnetization loss shows a crossing point. When the magnetic field is not parallel, the magnetization losses are increased as the angle of the tape axis to the magnetic field increases. We compared the total losses with additions of the transport current loss without the magnetic field and the magnetization loss without transport current in multiple magnetic field directions, and these results did not correspond.",

keywords = "AC loss, High temperature superconductor, multiple magnetic field direction",

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T1 - Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

AU - Ogawa, Jun

AU - Fukui, Satoshi

AU - Oka, Tetsuo

AU - Shidara, Naoto

AU - Iwashita, Ryousuke

AU - Ohya, Masayoshi

PY - 2016/6/1

Y1 - 2016/6/1

N2 - In this paper, we applied a magnetic field in multiple directions to a Bi2223/Ag tape and measured the transport current and magnetization losses in each position using the four terminal and pickup coil methods. We rotated the tape face and the tape axis to the ac magnetic field by 15° segments. We report the magnetic field direction dependence of ac losses. When the magnetic field direction is parallel to the tape face and the tape axis is rotated in the magnetic field, each magnetization loss shows a crossing point. When the magnetic field is not parallel, the magnetization losses are increased as the angle of the tape axis to the magnetic field increases. We compared the total losses with additions of the transport current loss without the magnetic field and the magnetization loss without transport current in multiple magnetic field directions, and these results did not correspond.

AB - In this paper, we applied a magnetic field in multiple directions to a Bi2223/Ag tape and measured the transport current and magnetization losses in each position using the four terminal and pickup coil methods. We rotated the tape face and the tape axis to the ac magnetic field by 15° segments. We report the magnetic field direction dependence of ac losses. When the magnetic field direction is parallel to the tape face and the tape axis is rotated in the magnetic field, each magnetization loss shows a crossing point. When the magnetic field is not parallel, the magnetization losses are increased as the angle of the tape axis to the magnetic field increases. We compared the total losses with additions of the transport current loss without the magnetic field and the magnetization loss without transport current in multiple magnetic field directions, and these results did not correspond.

KW - AC loss

KW - High temperature superconductor

KW - multiple magnetic field direction

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Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

Abstract

Keywords

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