Superconducting joint between Bi-Pb-Sr-Ca-Cu-O superconductor tapes

Jung Ho Kim; Bong Ki Ji; Jinho Joo; Cheol Woong Yang; Wansoo Nah

doi:10.1109/77.828445

Superconducting joint between Bi-Pb-Sr-Ca-Cu-O superconductor tapes

Jung Ho Kim
, Bong Ki Ji
, Jinho Joo
, Cheol Woong Yang
, Wansoo Nah

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Contribution to journal › Conference article › peer-review

8 Scopus citations

Abstract

We evaluated the effects of joining processes such as contact method, shape of joined area and pressure on the electrical and mechanical properties of Bi-2223 superconducting tape. Specifically, the current carrying capacity and bonding strength of the lap-joined tape were measured as a function of uniaxial pressure and correlated to the microstructural evolution. It was observed that the current carrying capacity was reduced in the transition region of the jointed tape and was significantly dependent on the uniaxial pressure. The jointed tape, fabricated with a pressure of 1,600 MPa, showed the highest value of current capacity 90% of the tape itself. It is believed that the highest value of current capacity results from improvements in core density, contacting area and grain alignment. In addition, bonding strength of the jointed tape was evaluated and correlated to the microstructural evolution.

Original language	English
Pages (from-to)	1182-1185
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	10
Issue number	1
DOIs	https://doi.org/10.1109/77.828445
State	Published - 2000
Event	The 16th International Conference on Magnet Tehnolopgy - Tallahassee, FL, USA Duration: 26 Sep 1999 → 2 Oct 1999

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title = "Superconducting joint between Bi-Pb-Sr-Ca-Cu-O superconductor tapes",

abstract = "We evaluated the effects of joining processes such as contact method, shape of joined area and pressure on the electrical and mechanical properties of Bi-2223 superconducting tape. Specifically, the current carrying capacity and bonding strength of the lap-joined tape were measured as a function of uniaxial pressure and correlated to the microstructural evolution. It was observed that the current carrying capacity was reduced in the transition region of the jointed tape and was significantly dependent on the uniaxial pressure. The jointed tape, fabricated with a pressure of 1,600 MPa, showed the highest value of current capacity 90\% of the tape itself. It is believed that the highest value of current capacity results from improvements in core density, contacting area and grain alignment. In addition, bonding strength of the jointed tape was evaluated and correlated to the microstructural evolution.",

author = "Kim, \{Jung Ho\} and Ji, \{Bong Ki\} and Jinho Joo and Yang, \{Cheol Woong\} and Wansoo Nah",

year = "2000",

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volume = "10",

pages = "1182--1185",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

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number = "1",

note = "The 16th International Conference on Magnet Tehnolopgy ; Conference date: 26-09-1999 Through 02-10-1999",

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TY - JOUR

T1 - Superconducting joint between Bi-Pb-Sr-Ca-Cu-O superconductor tapes

AU - Kim, Jung Ho

AU - Ji, Bong Ki

AU - Joo, Jinho

AU - Yang, Cheol Woong

AU - Nah, Wansoo

PY - 2000

Y1 - 2000

N2 - We evaluated the effects of joining processes such as contact method, shape of joined area and pressure on the electrical and mechanical properties of Bi-2223 superconducting tape. Specifically, the current carrying capacity and bonding strength of the lap-joined tape were measured as a function of uniaxial pressure and correlated to the microstructural evolution. It was observed that the current carrying capacity was reduced in the transition region of the jointed tape and was significantly dependent on the uniaxial pressure. The jointed tape, fabricated with a pressure of 1,600 MPa, showed the highest value of current capacity 90% of the tape itself. It is believed that the highest value of current capacity results from improvements in core density, contacting area and grain alignment. In addition, bonding strength of the jointed tape was evaluated and correlated to the microstructural evolution.

AB - We evaluated the effects of joining processes such as contact method, shape of joined area and pressure on the electrical and mechanical properties of Bi-2223 superconducting tape. Specifically, the current carrying capacity and bonding strength of the lap-joined tape were measured as a function of uniaxial pressure and correlated to the microstructural evolution. It was observed that the current carrying capacity was reduced in the transition region of the jointed tape and was significantly dependent on the uniaxial pressure. The jointed tape, fabricated with a pressure of 1,600 MPa, showed the highest value of current capacity 90% of the tape itself. It is believed that the highest value of current capacity results from improvements in core density, contacting area and grain alignment. In addition, bonding strength of the jointed tape was evaluated and correlated to the microstructural evolution.

UR - https://www.scopus.com/pages/publications/0033907789

U2 - 10.1109/77.828445

DO - 10.1109/77.828445

M3 - Conference article

AN - SCOPUS:0033907789

SN - 1051-8223

VL - 10

SP - 1182

EP - 1185

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 1

T2 - The 16th International Conference on Magnet Tehnolopgy

Y2 - 26 September 1999 through 2 October 1999

ER -

Superconducting joint between Bi-Pb-Sr-Ca-Cu-O superconductor tapes

Abstract

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