Development of nb-ti-ta ternary alloy multifilamentary superconducting wire

T. Shimada; K. Wada; S. Meguro; S. Murase; S. Nakayama; T. Orikasa; K. Makishima; K. Watanabe; K. Tsuchiya; A. Yamamoto; T. Nakamoto; T. Shintomi

doi:10.1109/77.784788

Development of nb-ti-ta ternary alloy multifilamentary superconducting wire

T. Shimada, K. Wada, S. Meguro, S. Murase, S. Nakayama, T. Orikasa, K. Makishima, K. Watanabe, K. Tsuchiya, A. Yamamoto, T. Nakamoto, T. Shintomi

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The superconducting wire with approximately 10 (im diameter filaments of Nb-41wt%Ti28wt%Ta alloy was fabricated from our standard production billet. Critical current densities and upper critical fields after various heat treatments were measured in the temperature range of 4.2 K to 1.6 K. Thermo-mechanical treatments for a-Ti precipitates were optimized to improve critical current densities. A 27strand Rutherford type cable having a large keystone angle was trial-fabricated using the optimized-processed wires. The achieved J/s were 1383 A/mm2 (10 T and 1.9 K) and 602 A /mm2 (12 T and 1.9 K). The fabricated wire was proved to have high homogeneity and good workability.

Original language	English
Pages (from-to)	1731-1734
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 2
DOIs	https://doi.org/10.1109/77.784788
Publication status	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/77.784788

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Development of nb-ti-ta ternary alloy multifilamentary superconducting wire. / Shimada, T.; Wada, K.; Meguro, S.; Murase, S.; Nakayama, S.; Orikasa, T.; Makishima, K.; Watanabe, K.; Tsuchiya, K.; Yamamoto, A.; Nakamoto, T.; Shintomi, T.

In: IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2 PART 2, 1999, p. 1731-1734.

Research output: Contribution to journal › Article › peer-review

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abstract = "The superconducting wire with approximately 10 (im diameter filaments of Nb-41wt%Ti28wt%Ta alloy was fabricated from our standard production billet. Critical current densities and upper critical fields after various heat treatments were measured in the temperature range of 4.2 K to 1.6 K. Thermo-mechanical treatments for a-Ti precipitates were optimized to improve critical current densities. A 27strand Rutherford type cable having a large keystone angle was trial-fabricated using the optimized-processed wires. The achieved J/s were 1383 A/mm2 (10 T and 1.9 K) and 602 A /mm2 (12 T and 1.9 K). The fabricated wire was proved to have high homogeneity and good workability.",

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AU - Shimada, T.

AU - Wada, K.

AU - Meguro, S.

AU - Murase, S.

AU - Nakayama, S.

AU - Orikasa, T.

AU - Makishima, K.

AU - Watanabe, K.

AU - Tsuchiya, K.

AU - Yamamoto, A.

AU - Nakamoto, T.

AU - Shintomi, T.

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AB - The superconducting wire with approximately 10 (im diameter filaments of Nb-41wt%Ti28wt%Ta alloy was fabricated from our standard production billet. Critical current densities and upper critical fields after various heat treatments were measured in the temperature range of 4.2 K to 1.6 K. Thermo-mechanical treatments for a-Ti precipitates were optimized to improve critical current densities. A 27strand Rutherford type cable having a large keystone angle was trial-fabricated using the optimized-processed wires. The achieved J/s were 1383 A/mm2 (10 T and 1.9 K) and 602 A /mm2 (12 T and 1.9 K). The fabricated wire was proved to have high homogeneity and good workability.

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Development of nb-ti-ta ternary alloy multifilamentary superconducting wire

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