Thermal and electrical stabilities of YBCO coated conductor tapes in a solid argon-liquid nitrogen mixed cooling system

J. B. Song, K. L. Kim, D. G. Yang, H. G. Lee

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A new cryogen, a mixture of solid argon and a small amount of liquid nitrogen, was studied to improve thermal contact between the solid cryogen and hightemperature superconducting tapes. A feasibility study of the reference design codes and the thermal requirements was conducted to optimize the design of the mixed cryogen cooling system. Experimental results showed that thermal and electrical stabilities of YBCO coated conductor tapes were significantly improved when they were impregnated with the mixed cryogen. Dry-out problems were overcome by the mixed cryogen because the small amount of liquid nitrogen improved thermal contact between the solid cryogen and superconducting tape.

Original languageEnglish
Pages (from-to)1431-1440
Number of pages10
JournalJournal of Superconductivity and Novel Magnetism
Volume25
Issue number5
DOIs
Publication statusPublished - 2012 Jul

Keywords

  • Liquid nitrogen
  • Mixed cryogen
  • Solid argon
  • Solid cryogen
  • Thermal contact

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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