# Evaluation of Coupling Currents in MgB<sub>2</sub> Wire Under Rotating Magnetic Field Using Numerical Analysis

https://mdr.nims.go.jp/datasets/06ead9c0-fceb-4bbc-8ebc-41a273b4cce0

## File

- [ASC2024_paper_okumura_v11.docx](https://mdr.nims.go.jp/filesets/b944d687-2416-489f-9890-ecf2ac666a02/download) ([Detail](https://mdr.nims.go.jp/filesets/b944d687-2416-489f-9890-ecf2ac666a02.md))

## Id

06ead9c0-fceb-4bbc-8ebc-41a273b4cce0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-07-16T00:38:19.555394Z

## Updated at

2025-07-16T07:30:32.530935Z

## Published at

2025-07-16T07:18:21.511408Z

## Doi

https://doi.org/10.48505/nims.5593

## First published url

https://doi.org/10.1109/tasc.2025.3527950

## Date published

2025-01-10

## Recorded date published



## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Evaluation of Coupling Currents in MgB<sub>2</sub> Wire Under Rotating Magnetic
    Field Using Numerical Analysis
  title_type: original
  lang: en

## Description

- description: In this paper, the authors performed a numerical analysis of AC loss
    when a rotating magnetic field was applied to the MgB2 wire. The H-φ formulation
    was used for the finite element analysis. AC losses include coupling losses, hysteresis
    losses, and eddy current losses. The AC losses were calculated when the contact
    resistivity and contact length were changed. The rotational frequencies were 25
    Hz and 50 Hz, and the maximum magnetic flux density amplitude was 0.01 T. As a
    result, it was revealed that the coupling loss was inversely proportional to the
    contact resistance. It was also revealed that the coupling loss was proportional
    to the square of the contact length. These trends can be understood from the theoretical
    formula for coupling loss.
  description_type: abstract
  lang: und

## Creator

- name: Satsuki Okumura
  role: author
  orcid: https://orcid.org/0009-0008-7298-0833
- name: Yutaka Terao
  role: author
  orcid: https://orcid.org/0000-0002-5760-0010
- name: Hiroyuki Ohsaki
  role: author
  orcid: https://orcid.org/0000-0003-0539-112X
- name: Akihiro Kikuchi
  role: author
  orcid: https://orcid.org/0000-0002-5044-7156

## Contact agent



## Publisher

organization: Institute of Electrical and Electronics Engineers (IEEE)

## Managing organization



## Keyword

- subject: MgB2 wire
  schema: not_defined
- subject: rotating magnetic field
  schema: not_defined
- subject: three-dimensional FEM analysis
  schema: not_defined
- subject: AC loss
  schema: not_defined
- subject: coupling loss
  schema: not_defined

## Rights

- description: "© 2025 IEEE.  Personal use of this material is permitted.  Permission
    from IEEE must be obtained for all other uses, in any current or future media,
    including reprinting/republishing this material for advertising or promotional
    purposes, creating new collective works, for resale or redistribution to servers
    or lists, or reuse of any copyrighted component of this work in other works."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: IEEE Transactions on Applied Superconductivity
  issn: '10518223'
  volume: '35'
  issue: '5'
  start_page: 1
  end_page: 5

## Conference



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: b944d687-2416-489f-9890-ecf2ac666a02
  filename: ASC2024_paper_okumura_v11.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 1573775
  md5: 592a1e5db3b028841ee22c3a9af7ba32

## Thumbnail

fileset_id: b944d687-2416-489f-9890-ecf2ac666a02
filename: ASC2024_paper_okumura_v11.docx