Fabrication of Bi-2223 HTS magnet with a superconducting switch

Sang Soo Oh; Hong Soo Ha; Hyun Man Jang; Dong Woo Ha; Rock Kil Ko; Young Kil Kwon; Kang Sik Ryu; Haigun Lee; Benjamin Haid; Yukikazu Iwasa

doi:10.1109/77.920203

Fabrication of Bi-2223 HTS magnet with a superconducting switch

Sang Soo Oh, Hong Soo Ha, Hyun Man Jang, Dong Woo Ha, Rock Kil Ko, Young Kil Kwon, Kang Sik Ryu, Haigun Lee, Benjamin Haid, Yukikazu Iwasa

Research output: Contribution to journal › Article

12 Citations (Scopus)

Abstract

A test pancake magnet, equipped with a persistent superconducting switch, was fabricated with Bi-2223/Ag-Mg tape. The magnet was operated in persistent mode at 20 and 77 K. For large operating currents that forces the magnet to operate in the flux flow range, the field decays is exponentially with time. A simple circuit model is used to compute field decay time constants. It was also found that Pb-Sn solder joints are unsuitable for persistent mode operation.

Original language	English
Pages (from-to)	1828-1831
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 II
DOIs	https://doi.org/10.1109/77.920203
Publication status	Published - 2001 Mar 1
Externally published	Yes

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Keywords

Bi-2223
HTS
Magnet
Persistent mode

ASJC Scopus subject areas

Electrical and Electronic Engineering
Physics and Astronomy (miscellaneous)

Cite this

Oh, S. S., Ha, H. S., Jang, H. M., Ha, D. W., Ko, R. K., Kwon, Y. K., Ryu, K. S., Lee, H., Haid, B., & Iwasa, Y. (2001). Fabrication of Bi-2223 HTS magnet with a superconducting switch. IEEE Transactions on Applied Superconductivity, 11(1 II), 1828-1831. https://doi.org/10.1109/77.920203

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10.1109/77.920203