2G HTS magnet with smart insulation method

Seok Beom Kim, Young Sik Jo, Hyung Wook Kim, Seog Whan Kim, Doohun Kim, Rock Kil Ko, Dong Woo Ha, Heui Joo Park, Ho Min Kim, Dong Gyun Ahn, Jung Pyo Hong, Jin Hur

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper proposes an advanced method to satisfy both the stability and charging/discharging time constant requirements of second generation high-temperature superconductor (2G HTS) magnets. This novel method entails installing metal–insulator transition (MIT) material between the turns of the 2G HTS magnets. The MIT material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the MIT material becomes a conductor. This transition can be used as a switch between the turns of the 2G HTS magnets. We refer to this temperature-dependent smart switch as “smart insulation.” Considering the operating temperature, we selected V2 O3 as the material for smart insulation. We have experimentally verified that the advantages of both the insulation magnet (in the superconducting state) and no-insulation magnet (during quenching) can be simultaneously realized.

Original languageEnglish
JournalIEEE Transactions on Applied Superconductivity
Volume28
Issue number3
DOIs
Publication statusPublished - Apr 1 2018

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Keywords

  • Charging/discharging time constant
  • Metal–insulator transition (MIT)
  • Second generation high-temperature superconductor (2G HTS) magnet
  • Stability

ASJC Scopus subject areas

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

Cite this

Kim, S. B., Jo, Y. S., Kim, H. W., Kim, S. W., Kim, D., Ko, R. K., Ha, D. W., Park, H. J., Kim, H. M., Ahn, D. G., Hong, J. P., & Hur, J. (2018). 2G HTS magnet with smart insulation method. IEEE Transactions on Applied Superconductivity, 28(3). https://doi.org/10.1109/TASC.2017.2779491