Quench and recovery characteristics of second-generation high-temperature superconducting GdBCO coated conductor with various patterns of stabilizers

Y. H. Choi, J. C. Kim, Y. G. Kim, J. S. Kim, T. K. Ko, Y. S. Choi, Haigun Lee

Research output: Contribution to journalArticle

Abstract

This paper investigates the quench and recovery characteristics of second-generation high-temperature superconducting GdBCO coated conductors (CC) with variously patterned stabilizers in over-current conditions. A chemical etching method was used to produce various patterns of stabilizer on GdBCO CC without degrading current-carrying capacity. From the results of the over-current testing of GdBCO CC tapes with variously patterned stabilizers, the tape that had stabilizer with longitudinally disconnected patterns exhibited higher voltage increase and slower recovery time than those that had continuity of stabilizers along the longitudinal direction, because the excessive heat and current could not be transferred through the stabilizers in the former. Overall, uniform heat and current distributions along the stabilizer of GdBCO CC are among the critical factors determining thermal and electrical stabilities of a GdBCO magnet in over-current conditions, especially when quench occurs.

Original languageEnglish
Pages (from-to)222-226
Number of pages5
JournalResults in Physics
Volume10
DOIs
Publication statusPublished - 2018 Sep 1

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conductors
recovery
tapes
heat
current distribution
continuity
high voltages
thermal stability
magnets
etching

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Quench and recovery characteristics of second-generation high-temperature superconducting GdBCO coated conductor with various patterns of stabilizers. / Choi, Y. H.; Kim, J. C.; Kim, Y. G.; Kim, J. S.; Ko, T. K.; Choi, Y. S.; Lee, Haigun.

In: Results in Physics, Vol. 10, 01.09.2018, p. 222-226.

Research output: Contribution to journalArticle

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AU - Lee, Haigun

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