9–13 Jul 2017
Monona Terrace Community and Convention Center
US/Central timezone

[Invited] Development of Silver-Sheathed Bi2223 Superconducting Wires

12 Jul 2017, 16:15
30m
Hall of Ideas - EH

Hall of Ideas - EH

Speaker

Dr Goro Osabe (Sumitomo Electric)

Description

Sumitomo Electric Industries, Ltd. (SEI) has been developing the silver-sheathed Bi2223 multi-filamentary wires, DI-BSCCO (Dynamically-Innovative BSCCO). The wires have been improved various properties in response to the growing demands from the application products and projects. For use in high field-magnet applications, strong hoop stress is usually applied to HTS wire. Therefore, the wire needs to have high mechanical strength. For the purpose of using such applications, SEI has developed and commercialized a high-strength DI-BSCCO Type HT-NX wire reinforced with Ni alloy tapes. The wire obtained a critical tensile stress of 400 MPa at 77K. On the other hand, the resistivity of the Ni alloy is high, resulting in the generation of the high Joule heat at the joint. The newly developed spliced structure successfully reduced the splice resistance without sacrificing the mechanical properties. For nuclear magnetic resonance and other high field magnetic applications, the use of Type HT-NX wire is highly expected. In this presentation, the recent progress of the currently available commercial wires and the updated R&D activities will be talked.

Authors

Dr Goro Osabe (Sumitomo Electric) Mr Shinichi Kobayashi (Sumitomo Electric) Kohei Yamazaki (Sumitomo Electric) Dr Takayoshi Nakashima (Sumitomo Electric) Mr Masashi Kikuchi (Sumitomo Electric) Satoru Yamade (Sumitomo Electric) Mr Souichirou Takeda (Sumitomo Electric) Mr Tomoyuki Okada (Sumitomo Electric) Mr Takeshi Kato (Sumitomo Electric) Dr Kenichi Sato

Presentation materials

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