Influence of Zn Addition in Cu Matrix on the Mechanical and Superconducting Properties of Nb3Sn Conductor

New generation accelerators, such as future circular collider (FCC), require superconducting wires with non-copper J c of 1500 A/mm 2 at 16 T and 4.2 K. Kobe Steel Ltd. developed Nb 3 Sn conductors with elemental addition to achieve the target J c for FCC. The effect of zinc addition to the copper m...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2022-09, Vol.32 (6), p.1-5
Main Authors: Dhakarwal, M., Sugano, M., Ogitsu, T., Kawashima, S., Nishijima, G., Banno, N.
Format: Article
Language:English
Subjects:
Conductors
Copper
Critical current
Current measurement
DT method
Magnetic field measurement
Nb3Sn
Strain
Strain measurement
Superconducting magnets
Superconductivity
walters spring
Wires
Zinc
Zn addition
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Summary:New generation accelerators, such as future circular collider (FCC), require superconducting wires with non-copper J c of 1500 A/mm 2 at 16 T and 4.2 K. Kobe Steel Ltd. developed Nb 3 Sn conductors with elemental addition to achieve the target J c for FCC. The effect of zinc addition to the copper matrix on the superconducting properties and mechanical strength of the distributed tin (DT) method processed Nb 3 Sn wire is studied. In the present study, the I c -strain characteristics were evaluated using Walters springs (WASP) at 16 T and 4.2 K to investigate the impact of copper (Cu) and brass (Cu-Zn) matrix on further J c improvement and mechanical robustness.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2022.3176254