Thermal and electrical stabilities of solid nitrogen (SN2) cooled YBCO coated conductors for HTS magnet applications

J. B. Song; K. J. Kim; K. L. Kim; J. H. Lee; H. M. Kim; G. H. Lee; H. M. Chang; D. K. Park; T. K. Ko; H. G. Lee

doi:10.1109/TASC.2009.2038172

Thermal and electrical stabilities of solid nitrogen (SN2) cooled YBCO coated conductors for HTS magnet applications

J. B. Song, K. J. Kim, K. L. Kim, J. H. Lee, H. M. Kim, G. H. Lee, H. M. Chang, D. K. Park, T. K. Ko, H. G. Lee

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

Recently, a cooling system using a solid cryogen such as solid nitrogen (SN2), was introduced for high temperature superconducting (HTS) magnet applications. In order to apply the SN2 cooling system successfully to HTS applications, it is essential to obtain sufficient data regarding the characteristics of the SN2-cooled YBCO-coated conductor (CC), including the thermal and electrical properties. Therefore, this study examined the effect of SN2 on the thermal/electrical stability of YBCO CC tape. The SN2 was produced by conduction cooling using a GM-cryocooler and cooled to 58 K. The voltages and temperatures of the YBCO CC tapes were measured while applying an over-current. The results showed that the thermal and electrical stability of the YBCO CC tape were improved considerably in the SN2 cooling system compared to that in the conduction cooling system.

Original language	English
Article number	5372007
Pages (from-to)	2172-2175
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	20
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2009.2038172
Publication status	Published - 2010 Jun

Bibliographical note

Funding Information:
Manuscript received October 20, 2009. First published December 31, 2009; current version published May 28, 2010 . This study was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST 2009-0085369), and the Electric Power Industry Technology Evaluation and Planning, and by a grant from the center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, KOREA.

All Science Journal Classification (ASJC) codes

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

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title = "Thermal and electrical stabilities of solid nitrogen (SN2) cooled YBCO coated conductors for HTS magnet applications",

abstract = "Recently, a cooling system using a solid cryogen such as solid nitrogen (SN2), was introduced for high temperature superconducting (HTS) magnet applications. In order to apply the SN2 cooling system successfully to HTS applications, it is essential to obtain sufficient data regarding the characteristics of the SN2-cooled YBCO-coated conductor (CC), including the thermal and electrical properties. Therefore, this study examined the effect of SN2 on the thermal/electrical stability of YBCO CC tape. The SN2 was produced by conduction cooling using a GM-cryocooler and cooled to 58 K. The voltages and temperatures of the YBCO CC tapes were measured while applying an over-current. The results showed that the thermal and electrical stability of the YBCO CC tape were improved considerably in the SN2 cooling system compared to that in the conduction cooling system.",

author = "Song, {J. B.} and Kim, {K. J.} and Kim, {K. L.} and Lee, {J. H.} and Kim, {H. M.} and Lee, {G. H.} and Chang, {H. M.} and Park, {D. K.} and Ko, {T. K.} and Lee, {H. G.}",

note = "Funding Information: Manuscript received October 20, 2009. First published December 31, 2009; current version published May 28, 2010 . This study was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST 2009-0085369), and the Electric Power Industry Technology Evaluation and Planning, and by a grant from the center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, KOREA.",

year = "2010",

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Thermal and electrical stabilities of solid nitrogen (SN2) cooled YBCO coated conductors for HTS magnet applications. / Song, J. B.; Kim, K. J.; Kim, K. L.; Lee, J. H.; Kim, H. M.; Lee, G. H.; Chang, H. M.; Park, D. K.; Ko, T. K.; Lee, H. G.

In: IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, 5372007, 06.2010, p. 2172-2175.

Research output: Contribution to journal › Article

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AU - Kim, K. J.

AU - Kim, K. L.

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AU - Chang, H. M.

AU - Park, D. K.

AU - Ko, T. K.

AU - Lee, H. G.

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