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 › Conference article › peer-review

14 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
Externally published	Yes
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sept 17 → 2000 Sept 22

Bibliographical note

Funding Information:
Manuscript received September 18,2000. This work was supported in part by the Korea Ministry of Science and Technology. S.S. Oh is with the Korca Electrotcchnology Kcscdrch Institute, Changwon 641-120, Korea (telephone: +82-55-280-1654, e-mail: ssoh @keri.re.kr). H.S. Ha, H.M. Jang, D.W. Ha, R.K. KO, Y.K. Kwon and K.S. Ryu are with the Korea Electrotechnology Research Institute, Changwon 641-120, Korea. H.G. Lce is with Francis Bittcr Magnet Laboratory, MIT , Cambridge, MA 02139 USA (telephone: 617-286-5728, e-mail: [email protected]). B. Haid is with Francis Bitter Magnet Laboratory, MlT , Cambridge, MA 02139 USA (telephone: 617-452-3249, e-mail: [email protected]). Y. Iwasa is with Francis Bitter Magnet Laboratory, MIT, Cambridge, MA 02139 USA (telephone: 617-254-5548, e-mail: [email protected]).

Keywords

Bi-2223
HTS
Magnet
Persistent mode

ASJC Scopus subject areas

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

Access to Document

10.1109/77.920203

Cite this

@article{56e2e9ac362141378ac163df821057aa,

title = "Fabrication of Bi-2223 HTS magnet with a superconducting switch",

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.",

keywords = "Bi-2223, HTS, Magnet, Persistent mode",

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

note = "Funding Information: Manuscript received September 18,2000. This work was supported in part by the Korea Ministry of Science and Technology. S.S. Oh is with the Korca Electrotcchnology Kcscdrch Institute, Changwon 641-120, Korea (telephone: +82-55-280-1654, e-mail: ssoh @keri.re.kr). H.S. Ha, H.M. Jang, D.W. Ha, R.K. KO, Y.K. Kwon and K.S. Ryu are with the Korea Electrotechnology Research Institute, Changwon 641-120, Korea. H.G. Lce is with Francis Bittcr Magnet Laboratory, MIT , Cambridge, MA 02139 USA (telephone: 617-286-5728, e-mail: [email protected]). B. Haid is with Francis Bitter Magnet Laboratory, MlT , Cambridge, MA 02139 USA (telephone: 617-452-3249, e-mail: [email protected]). Y. Iwasa is with Francis Bitter Magnet Laboratory, MIT, Cambridge, MA 02139 USA (telephone: 617-254-5548, e-mail: [email protected]).; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

year = "2001",

month = mar,

doi = "10.1109/77.920203",

language = "English",

volume = "11",

pages = "1828--1831",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "1 II",

}

TY - JOUR

T1 - Fabrication of Bi-2223 HTS magnet with a superconducting switch

AU - Oh, Sang Soo

AU - Ha, Hong Soo

AU - Jang, Hyun Man

AU - Ha, Dong Woo

AU - Ko, Rock Kil

AU - Kwon, Young Kil

AU - Ryu, Kang Sik

AU - Lee, Haigun

AU - Haid, Benjamin

AU - Iwasa, Yukikazu

N1 - Funding Information: Manuscript received September 18,2000. This work was supported in part by the Korea Ministry of Science and Technology. S.S. Oh is with the Korca Electrotcchnology Kcscdrch Institute, Changwon 641-120, Korea (telephone: +82-55-280-1654, e-mail: ssoh @keri.re.kr). H.S. Ha, H.M. Jang, D.W. Ha, R.K. KO, Y.K. Kwon and K.S. Ryu are with the Korea Electrotechnology Research Institute, Changwon 641-120, Korea. H.G. Lce is with Francis Bittcr Magnet Laboratory, MIT , Cambridge, MA 02139 USA (telephone: 617-286-5728, e-mail: [email protected]). B. Haid is with Francis Bitter Magnet Laboratory, MlT , Cambridge, MA 02139 USA (telephone: 617-452-3249, e-mail: [email protected]). Y. Iwasa is with Francis Bitter Magnet Laboratory, MIT, Cambridge, MA 02139 USA (telephone: 617-254-5548, e-mail: [email protected]).

PY - 2001/3

Y1 - 2001/3

N2 - 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.

AB - 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.

KW - Bi-2223

KW - HTS

KW - Magnet

KW - Persistent mode

UR - http://www.scopus.com/inward/record.url?scp=17844376208&partnerID=8YFLogxK

U2 - 10.1109/77.920203

DO - 10.1109/77.920203

M3 - Conference article

AN - SCOPUS:17844376208

SN - 1051-8223

VL - 11

SP - 1828

EP - 1831

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 1 II

T2 - 2000 Applied Superconductivity Conference

Y2 - 17 September 2000 through 22 September 2000

ER -

Fabrication of Bi-2223 HTS magnet with a superconducting switch

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this