Article Superconducting Properties of a Nb3Sn Bundle Cable Made of Ultra-Fine Wires

Xudong Wang ORCID (High Energy Accelerator Research Organization) ; Kiyosumi Tsuchiya ORCID (High Energy Accelerator Research Organization) ; Akio Terashima (High Energy Accelerator Research Organization) ; Yasuo Iijima (National Institute for Materials Science) ; Akihiro Kikuchi SAMURAI ORCID (National Institute for Materials Science)

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Xudong Wang, Kiyosumi Tsuchiya, Akio Terashima, Yasuo Iijima, Akihiro Kikuchi. Superconducting Properties of a Nb3Sn Bundle Cable Made of Ultra-Fine Wires. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. 2023, 33 (5), 1-5. https://doi.org/10.1109/TASC.2023.3247696
SAMURAI

Alternative title: NA

Description:

(abstract)

We have been developing A15 cables made of ultra-fine wires for high-field superconducting magnets using react-and-wind (R&W) technology. Recently, we succeeded in fabricating a bronze-processed Nb3Sn ultra-fine wire with a minimum diameter of 30 µm. This wire contains 19 filaments and has a Cu/Non-Cu ratio of 0.89. In this study, we measured the transport critical current (Ic) of a Nb3Sn bundle cable made by twisting 19 wires with a diameter of 50 µm at 4.2 K and under an external field up to 18 T. The Non-Cu critical current density (Jc) was also calculated from the Ic results. To replicate the R&W process, the cable was wound on glass fiber-reinforced plastic cylinder (GFRP) bobbins after the heat treatment in straight geometry. To investigate the bending characteristics of the bundle cables, we prepared four GFRP bobbins with diameters of 50 mm, 30 mm, 25 mm, and 20 mm for Ic measurements.

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    © 2023 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.

Keyword: Nb3Sn, Superconducting Properties, Ultra-Fine Wires

Date published: 2023-02-22

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Journal:

  • IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (ISSN: 15582515) vol. 33 issue. 5 p. 1-5

Funding:

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4369

First published URL: https://doi.org/10.1109/TASC.2023.3247696

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Contact agent: Akihiro Kikuchi (National Institute for Materials Science) KIKUCHI.Akihiro@nims.go.jp

Updated at: 2024-01-25 11:51:32 +0900

Published on MDR: 2024-01-25 16:30:23 +0900

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