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説明:

This paper reviews the Pb- and Cd-free NbTi/Nb3Sn superconducting joint technology and the related technologies. The key to the Pb-free joining process is the use of a high-temperature tolerable Nb superconducting alloy as an intermediate material, which enables metallic bonding between the Nb3Sn wire and the Nb superconducting alloy intermediate material through a chemical reaction, and between the NbTi wire and the Nb superconducting alloy intermediate material by pressure welding. Consequently, the NbTi/Nb3Sn superconducting joint is realized. This novel technology is expected to be used in the world’s first Pb-free, environmentally friendly NMR superconducting magnets.

権利情報:

• In Copyright
  

キーワード: NbTi, Nb3Sn, NMR, Pb-free, Superconducting joint

刊行年月日: 2025-07-20

出版者: Cryogenic Association of Japan

掲載誌:

• TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) (ISSN: 03892441) vol. 60 issue. 4 p. 141-147

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5611

公開URL: https://doi.org/10.2221/jcsj.60.141

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更新時刻: 2025-07-25 12:30:26 +0900

MDRでの公開時刻: 2025-07-25 12:17:31 +0900