Abstract
Recently, a cooling system using solid nitrogen (SN2) as a cryogen was suggested to enhance the thermal and electrical stabilities of high temperature superconductor (HTS) magnet applications, due to its large heat capacity. For the successful application of the SN2 cooling system to HTS devices, it is necessary to obtain sufficient data about the thermal and electrical characteristics of the SN2-cooled YBCO coated conductor (CC). Therefore, this study examined the thermal and electrical properties of YBCO CC tapes with different stabilizers in the presence and absence of SN2. The results clearly showed that the thermal and electrical stabilities of the YBCO CC tapes were drastically improved in the presence of the SN2, regardless of the stabilizer materials. Furthermore, copper was found to be more suitable as a stabilizer of YBCO CC tape in the SN2 cooling system than stainless steel.
Original language | English |
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Pages (from-to) | 1697-1706 |
Number of pages | 10 |
Journal | Journal of Superconductivity and Novel Magnetism |
Volume | 24 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2011 Jul |
Bibliographical note
Funding Information:Acknowledgements This study was supported by the Mid-career Researcher Program through an NRF grant funded by the MEST (2009-0085369). The study was also supported 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.
Keywords
- Conduction cooling system
- Quench and recovery test
- Solid nitrogen
- Stabilizer
- YBCO CC
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics