Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes

D. G. Yang; J. B. Song; Y. H. Choi; M. C. Ahn; J. B. Na; T. K. Ko; H. G. Lee

doi:10.1109/TASC.2010.2090323

Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes

D. G. Yang, J. B. Song, Y. H. Choi, M. C. Ahn, J. B. Na, T. K. Ko, H. G. Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Quench protection is one of the most important issues for magnet applications using 2 G HTS tapes because of their non-self-protecting properties. Although many researchers have examined the quench/recovery characteristics of HTS magnets to establish the required stability, new information on the quench/recovery characteristics of the recently commercialized HTS magnet with GdBCO CC is needed. In this study, the quench/recovery characteristics of Zr-doped (Gd,Y)BCO CC pancake coils that were insulated with various materials, such as copper and Kapton tapes, were examined in a liquid nitrogen (LN2) bath. The minimum quench energy (MQE) and normal zone propagation (NZP) velocity of the Zr-doped (Gd,Y)BCO CC pancake coils are discussed in terms of the quench/recovery test results.

Original language	English
Article number	5659975
Pages (from-to)	2415-2419
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	21
Issue number	3 PART 2
DOIs	https://doi.org/10.1109/TASC.2010.2090323
Publication status	Published - 2011 Jun

Keywords

GdBCO
Insulation
MQE
NZP
Pancake coil
Quench
Recovery

ASJC Scopus subject areas

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

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10.1109/TASC.2010.2090323

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title = "Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes",

abstract = "Quench protection is one of the most important issues for magnet applications using 2 G HTS tapes because of their non-self-protecting properties. Although many researchers have examined the quench/recovery characteristics of HTS magnets to establish the required stability, new information on the quench/recovery characteristics of the recently commercialized HTS magnet with GdBCO CC is needed. In this study, the quench/recovery characteristics of Zr-doped (Gd,Y)BCO CC pancake coils that were insulated with various materials, such as copper and Kapton tapes, were examined in a liquid nitrogen (LN2) bath. The minimum quench energy (MQE) and normal zone propagation (NZP) velocity of the Zr-doped (Gd,Y)BCO CC pancake coils are discussed in terms of the quench/recovery test results.",

keywords = "GdBCO, Insulation, MQE, NZP, Pancake coil, Quench, Recovery",

author = "Yang, {D. G.} and Song, {J. B.} and Choi, {Y. H.} and Ahn, {M. C.} and Na, {J. B.} and Ko, {T. K.} and Lee, {H. G.}",

note = "Funding Information: Manuscript received August 02, 2010; accepted October 22, 2010. Date of publication December 10, 2010; date of current version May 27, 2011. This study was supported by the Mid-career Researcher Program through an NRF Grant funded by the MEST (2009-0085369). D. G. Yang, J. B. Song, Y. H. Choi, and H. G. Lee are with the Department of Material Science and Engineering, Korea University, Seoul, Korea (e-mail: haigunlee@korea.ac.kr). M. C. Ahn is with the Department of Electrical Engineering, Gunsan National University, Gunsan, Korea. J. B. Na and T. K. Ko are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2010.2090323",

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AU - Yang, D. G.

AU - Song, J. B.

AU - Choi, Y. H.

AU - Ahn, M. C.

AU - Na, J. B.

AU - Ko, T. K.

AU - Lee, H. G.

N1 - Funding Information: Manuscript received August 02, 2010; accepted October 22, 2010. Date of publication December 10, 2010; date of current version May 27, 2011. This study was supported by the Mid-career Researcher Program through an NRF Grant funded by the MEST (2009-0085369). D. G. Yang, J. B. Song, Y. H. Choi, and H. G. Lee are with the Department of Material Science and Engineering, Korea University, Seoul, Korea (e-mail: haigunlee@korea.ac.kr). M. C. Ahn is with the Department of Electrical Engineering, Gunsan National University, Gunsan, Korea. J. B. Na and T. K. Ko are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2010.2090323

PY - 2011/6

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N2 - Quench protection is one of the most important issues for magnet applications using 2 G HTS tapes because of their non-self-protecting properties. Although many researchers have examined the quench/recovery characteristics of HTS magnets to establish the required stability, new information on the quench/recovery characteristics of the recently commercialized HTS magnet with GdBCO CC is needed. In this study, the quench/recovery characteristics of Zr-doped (Gd,Y)BCO CC pancake coils that were insulated with various materials, such as copper and Kapton tapes, were examined in a liquid nitrogen (LN2) bath. The minimum quench energy (MQE) and normal zone propagation (NZP) velocity of the Zr-doped (Gd,Y)BCO CC pancake coils are discussed in terms of the quench/recovery test results.

AB - Quench protection is one of the most important issues for magnet applications using 2 G HTS tapes because of their non-self-protecting properties. Although many researchers have examined the quench/recovery characteristics of HTS magnets to establish the required stability, new information on the quench/recovery characteristics of the recently commercialized HTS magnet with GdBCO CC is needed. In this study, the quench/recovery characteristics of Zr-doped (Gd,Y)BCO CC pancake coils that were insulated with various materials, such as copper and Kapton tapes, were examined in a liquid nitrogen (LN2) bath. The minimum quench energy (MQE) and normal zone propagation (NZP) velocity of the Zr-doped (Gd,Y)BCO CC pancake coils are discussed in terms of the quench/recovery test results.

KW - GdBCO

KW - Insulation

KW - MQE

KW - NZP

KW - Pancake coil

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KW - Recovery

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Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes

Abstract

Keywords

ASJC Scopus subject areas

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