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ブロンズ法Nb3Sn線材における内部補強による機械特性の改善 -固溶強化機構による内部マトリックス補強-

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We approached the internal matrix reinforcements using the Cu-Sn-Zn and Cu-Sn-In ternary bronze alloy matrices. After Nb3Sn phase synthesis, these ternary bronze alloy matrices were transformed into (Cu, Zn) or (Cu, In) solid solutions having much higher mechanical strength. Jc degradation due to the transverse compressive stress on the internal matrix reinforced Nb3Sn multifilamentary was evaluated. No Jc degradation was observed approximately 100 and 150 MPa, which values were much higher than the conventional bronze processed Nb3Sn wire. We found that the internal matrix reinforcement was effective for suppressing Jc degradation due to transverse compressive stress.

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Date published
  • 19/05/2023
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Journal
  • Title
    低温工学
    ISSN
    03892441
    Volume
    58
    Issue
    3
    Start page
    108
    End page
    115
Manuscript type
  • Version of record (Published version)
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Funding reference
  • Funder identifier
    16H04621
    Funder name
    日本学術振興会
    Award title
    固溶強化Cu-Snマトリックスを用いた核融合用高強度Nb3Sn超伝導線材の開発

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