# Critical current improvement and resistance evaluation of superconducting joint between Bi2223 tapes

https://mdr.nims.go.jp/datasets/f1b4917b-e7e1-4cf7-8f40-15a5fc882645

## File

- [manuscript_r2.pdf](https://mdr.nims.go.jp/filesets/f6c3d117-d5a5-44af-8c4a-975727fd9643/download) ([Detail](https://mdr.nims.go.jp/filesets/f6c3d117-d5a5-44af-8c4a-975727fd9643.md))

## Id

f1b4917b-e7e1-4cf7-8f40-15a5fc882645

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-04-05T01:29:12.976819Z

## Updated at

2024-04-05T23:30:29.464182Z

## Published at

2024-04-05T23:30:29.573432Z

## Doi

https://doi.org/10.48505/nims.4472

## First published url

https://doi.org/10.1088/1361-6668/ac45a3

## Date published

2022-02-01

## Recorded date published

2022-2-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Critical current improvement and resistance evaluation of superconducting
    joint between Bi2223 tapes
  title_type: original
  lang: en

## Description

- description: 'We improved the critical current (Ic) of the superconducting joint
    between the Bi2223 tapes by introducing the two-step sintering process. The in-field
    transport Ic of ~ 300 A at 4.2 K and 1 T under a 10−9 Ω criterion was successfully
    demonstrated. The Ic improvement can probably be attributed to the enhancement
    of the intergrain critical current density for a Bi2223 intermediate layer. Ultra-low
    in-field joint resistance below 10−14 Ω at 4.2 K and 1 T was also demonstrated
    using current decay measurement. To our best knowledge, this study is the first
    to demonstrate a practical level of in-field transport Ic and ultra-low in-field
    joint resistance for the superconducting joint between Bi2223 tapes. We believe
    that this superconducting joint technology will facilitate development of persistent
    current mode Bi2223 superconducting magnets. '
  description_type: abstract
  lang: und

## Creator

- name: Y Takeda
  role: author
  orcid: https://orcid.org/0000-0001-7217-9853
  organization: National Institute for Materials Science
- name: K Kobayashi
  role: author
  organization: National Institute for Materials Science
- name: A Uchida
  role: author
  orcid: https://orcid.org/0000-0002-9193-054X
  organization: National Institute for Materials Science
- name: H Kitaguchi
  role: author
  orcid: https://orcid.org/0000-0002-5998-2649
  organization: National Institute for Materials Science
- name: G Nishijima
  role: author
  orcid: https://orcid.org/0000-0001-7493-0559
  organization: National Institute for Materials Science
- name: Y Yanagisawa
  role: author
- name: T Nakashima
  role: author
- name: S Yamade
  role: author
- name: S Kobayashi
  role: author
- name: T Kato
  role: author
- name: S Nakamura
  role: author
- name: T Motoki
  role: author
- name: J Shimoyama
  role: author

## Contact agent



## Publisher

organization: IOP Publishing

## Managing organization



## Keyword

- subject: Superconducting joint
  schema: not_defined

## Rights

- description: "© 2022 IOP Publishing Ltd\r\n<br>\r\nThis is an author-created, un-copyedited
    version of an article accepted for publication/published\r\nin Superconductor
    Science and Technology. IOP Publishing Ltd is not responsible for any errors or
    omissions in this version of the manuscript or\r\nany version derived from it.
    The Version of Record is available online at https://doi.org/10.1088/1361-6668/ac45a3."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2022-01-12
end_date: 2023-01-12

## Journal

- title: Superconductor Science and Technology
  issn: '13616668'
  volume: '35'
  issue: '2'
  article_number: 02LT02

## Conference



## Related item



## Funding

- identifier: JST Mirai-Program Grant Number JPMJMI17A2
  funder_name: Japan Science and Technology Agency

## Instrument



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## Fileset

- id: f6c3d117-d5a5-44af-8c4a-975727fd9643
  filename: manuscript_r2.pdf
  content_type: application/pdf
  size: 641290
  md5: 7ce5756c807decce5d3348b78d10563c

## Thumbnail

fileset_id: f6c3d117-d5a5-44af-8c4a-975727fd9643
filename: manuscript_r2.pdf