Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (1/1 displayed)

  • 2023Characteristics and causes of voltage observed at the current feeder of high-temperature superconducting WISE conductorcitations

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Chart of shared publication
Miyazawa, J.
1 / 1 shared
Baba, T.
1 / 2 shared
Yanagi, N.
1 / 1 shared
Hamaguchi, S.
1 / 1 shared
Chikaraishi, H.
1 / 1 shared
Narushima, Y.
1 / 1 shared
Onodera, Y.
1 / 3 shared
Chart of publication period
2023

Co-Authors (by relevance)

  • Miyazawa, J.
  • Baba, T.
  • Yanagi, N.
  • Hamaguchi, S.
  • Chikaraishi, H.
  • Narushima, Y.
  • Onodera, Y.
OrganizationsLocationPeople

article

Characteristics and causes of voltage observed at the current feeder of high-temperature superconducting WISE conductor

  • Miyazawa, J.
  • Baba, T.
  • Yanagi, N.
  • Hamaguchi, S.
  • Chikaraishi, H.
  • Garfias-Davalos, D.
  • Narushima, Y.
  • Onodera, Y.
Abstract

<jats:title>Abstract</jats:title><jats:p>The HTS (high-temperature superconducting) conductor is a feasible candidate for constructing magnets for next-generation fusion devices because of its higher critical current in a high magnetic field. A new concept of the HTS-WISE (Wound and Impregnated Stacked Elastic tapes) conductor has been studied aiming to apply the fusion reactor magnet. Here, the WISE-U conductor is composed of stacked thirty REBCO tapes (10 mm width, 65 μm thickness, <jats:italic>I</jats:italic><jats:sub>c</jats:sub> = 370 A @77 K, s.f.) wrapped by a stainless-steel coil tube which is inserted into the metal pipe. The 4 m-long REBCO tapes are folded with a radius of curvature of 35 mm in a hairpin-like structure. A low-melting-point metal U-Alloy 60 whose melting point is 60°C is poured into the pipe for impregnation to make the non-insulation conductor. The REBCO tapes and the current feeder made of oxygen-free copper were also impregnated with the U-Alloy 60 to connect. This fabrication method has the advantage of being easier to fabricate than the technique of connecting each tape using indium foil. The energization test results showed that a maximum current value of 16.9 kA was recorded at <jats:italic>B</jats:italic> = 5 T and <jats:italic>T</jats:italic> = 30 K, however, a burnout occurred in the current feeder before the critical current was determined. Then, the improved WISE conductor has been designed and tested which showed a maximum of 19kA was reached in the self-field and 20K. However, burnout still occurred in the current feeder section. In those experiments, the superconducting section has not been damaged at all. If this burnout had been avoided, a higher current-carrying capacity could have been obtained. Identifying the cause of burnout and improving the current feeder is required.</jats:p>

Topics
  • impedance spectroscopy
  • experiment
  • Oxygen
  • steel
  • copper
  • Indium