Estimation of the critical current of BSCCO coils based on the field dependent I-V curves of BSCCO tapes

Y. Wolfus; Y. Fleger; A. Friedman; F. Kopansky; B. Kalisky; Y. Yeshurun; Z. Bar-Haim; Z. Ron; L. Ying; N. Pundak

doi:10.1016/j.physc.2003.09.042

Estimation of the critical current of BSCCO coils based on the field dependent I-V curves of BSCCO tapes

Y. Wolfus, Y. Fleger, A. Friedman, F. Kopansky, B. Kalisky, Y. Yeshurun, Z. Bar-Haim, Z. Ron, L. Ying, N. Pundak

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

11 Scopus citations

Abstract

Presented here are measurements at 77 K of I-V curves of reinforced BSCCO tapes in a perpendicular field regime of 0-700 G, and I-V curves of Ricor-made pancakes in self-field. The difference between the I-V characteristics of tapes and pancakes is discussed and explained by traveling across field different I-V curves of the tapes. We estimate the critical current of coils, based on the magnetic field dependence of the critical current in BSCCO tapes. The current distribution in the tape is assumed to be homogeneous, or non-homogeneous distribution opposing the local critical current density resulting from the magnetic field distribution in the tape. Applying our computational methods to the measured pancakes, results in a 90% (homogeneous current distribution) and 98% match (field-dependent current distribution) with the measured pancake's critical current.

Original language	English
Pages (from-to)	222-226
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	401
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2003.09.042
State	Published - 15 Jan 2004
Event	Proceedings of the International Cryogenic Materials Conference - Enschede, Netherlands Duration: 25 May 2003 → 28 May 2003

Bibliographical note

Funding Information:
This study has been carried out in the framework of a joint collaborative project of Bar-Ilan University and Ricor Vacuum and Cryogenic systems. The Israeli Ministry of Industry and Commerce funds this project.

Funding

This study has been carried out in the framework of a joint collaborative project of Bar-Ilan University and Ricor Vacuum and Cryogenic systems. The Israeli Ministry of Industry and Commerce funds this project.

Funders	Funder number
Bar-Ilan University

Keywords

BSCCO tape
Critical currents
Current distribution
I-V curve
Superconducting magnets

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10.1016/j.physc.2003.09.042

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title = "Estimation of the critical current of BSCCO coils based on the field dependent I-V curves of BSCCO tapes",

abstract = "Presented here are measurements at 77 K of I-V curves of reinforced BSCCO tapes in a perpendicular field regime of 0-700 G, and I-V curves of Ricor-made pancakes in self-field. The difference between the I-V characteristics of tapes and pancakes is discussed and explained by traveling across field different I-V curves of the tapes. We estimate the critical current of coils, based on the magnetic field dependence of the critical current in BSCCO tapes. The current distribution in the tape is assumed to be homogeneous, or non-homogeneous distribution opposing the local critical current density resulting from the magnetic field distribution in the tape. Applying our computational methods to the measured pancakes, results in a 90% (homogeneous current distribution) and 98% match (field-dependent current distribution) with the measured pancake's critical current.",

keywords = "BSCCO tape, Critical currents, Current distribution, I-V curve, Superconducting magnets",

author = "Y. Wolfus and Y. Fleger and A. Friedman and F. Kopansky and B. Kalisky and Y. Yeshurun and Z. Bar-Haim and Z. Ron and L. Ying and N. Pundak",

note = "Funding Information: This study has been carried out in the framework of a joint collaborative project of Bar-Ilan University and Ricor Vacuum and Cryogenic systems. The Israeli Ministry of Industry and Commerce funds this project. ; Proceedings of the International Cryogenic Materials Conference ; Conference date: 25-05-2003 Through 28-05-2003",

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AU - Wolfus, Y.

AU - Fleger, Y.

AU - Friedman, A.

AU - Kopansky, F.

AU - Kalisky, B.

AU - Yeshurun, Y.

AU - Bar-Haim, Z.

AU - Ron, Z.

AU - Ying, L.

AU - Pundak, N.

N1 - Funding Information: This study has been carried out in the framework of a joint collaborative project of Bar-Ilan University and Ricor Vacuum and Cryogenic systems. The Israeli Ministry of Industry and Commerce funds this project.

PY - 2004/1/15

Y1 - 2004/1/15

N2 - Presented here are measurements at 77 K of I-V curves of reinforced BSCCO tapes in a perpendicular field regime of 0-700 G, and I-V curves of Ricor-made pancakes in self-field. The difference between the I-V characteristics of tapes and pancakes is discussed and explained by traveling across field different I-V curves of the tapes. We estimate the critical current of coils, based on the magnetic field dependence of the critical current in BSCCO tapes. The current distribution in the tape is assumed to be homogeneous, or non-homogeneous distribution opposing the local critical current density resulting from the magnetic field distribution in the tape. Applying our computational methods to the measured pancakes, results in a 90% (homogeneous current distribution) and 98% match (field-dependent current distribution) with the measured pancake's critical current.

AB - Presented here are measurements at 77 K of I-V curves of reinforced BSCCO tapes in a perpendicular field regime of 0-700 G, and I-V curves of Ricor-made pancakes in self-field. The difference between the I-V characteristics of tapes and pancakes is discussed and explained by traveling across field different I-V curves of the tapes. We estimate the critical current of coils, based on the magnetic field dependence of the critical current in BSCCO tapes. The current distribution in the tape is assumed to be homogeneous, or non-homogeneous distribution opposing the local critical current density resulting from the magnetic field distribution in the tape. Applying our computational methods to the measured pancakes, results in a 90% (homogeneous current distribution) and 98% match (field-dependent current distribution) with the measured pancake's critical current.

KW - BSCCO tape

KW - Critical currents

KW - Current distribution

KW - I-V curve

KW - Superconducting magnets

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

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T2 - Proceedings of the International Cryogenic Materials Conference

Y2 - 25 May 2003 through 28 May 2003

ER -

Estimation of the critical current of BSCCO coils based on the field dependent I-V curves of BSCCO tapes

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Bibliographical note

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