한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제23권1호
  • /
  • Pages.12-16
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  • 2021
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
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Superconductivity for HTS GdBCO CC with heat treatment

  • You, Jong Su (Div. of Sci. Education and Institute of Sci. Education, Jeonbuk National University) ;
  • Yang, Jeong Hun (Div. of Sci. Education and Institute of Sci. Education, Jeonbuk National University) ;
  • Song, Kyu Jeong (Div. of Sci. Education and Institute of Sci. Education, Jeonbuk National University)
  • 투고 : 2021.02.24
  • 심사 : 2021.03.29
  • 발행 : 2021.03.31
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초록

The magnetic properties of heat treated O-series high temperature superconducting (HTS) GdBCO coated conductor (CC) tapes which were formed of Ag/GdBCO/Buffer-layers/Stainless Steel (SS), were investigated by employing a Quantum Design PPMS-14. Using a modified Bean model, the critical current density Jc values have been estimated from the 𝚫mirr(H) data, which are obtained by measuring the magnetic moment m(H) loops. For a range of intermediate fields, which are interacting or collective flux pinning area, the magnetic flux behaviors were investigated from the relationship Jc ∝ H-β. In addition, the changes of irreversibility magnetic field Hirr line of heat-treated O-series HTS GdBCO CC tapes were analyzed, according as the annealing temperature under oxygen flowing increases. Both weak and strong break-downs were found by examining the changes of irreversibility magnetic field Hirr lines.

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참고문헌

  1. SuNAM Home Page, "SuNAM 2G HTS wire specification," Acessed: Feb. 23, 2021. [Online]. Available: http://www.i-sunam.com
  2. SuperPower Home Page, "SuperPower 2G HTS wire specification," Acessed: Feb. 23, 2021. [Online]. Available: http://www.superpower-inc.com/content/2G-hts-wire
  3. C. Senatore, C. Barth, M. Bonura, M. Kulich, and G. Mondonico, "Field and temperature scaling of the critical current density in commercial REBCO coated conductor," Supercond. Sci. Technol., vol. 29, pp. 014002, 2016. https://doi.org/10.1088/0953-2048/29/1/014002
  4. Yeonjoo Park, Myungwhon Lee, Heesung Ann, Yoon Hyuck Choi, and Haigun Lee, "A superconducting joint for GdBa2Cu3O7-δ-coated conductors," NPG Asia Materials, vol. 6, pp. e98, 2014. https://doi.org/10.1038/am.2014.18
  5. J. Y. Kato, N. Sakai, S. Tajima, S. Miyata, M. Konishi, et al., "Diffusion joint of YBCO coated conductors using stabilizing silver layers," Physica C, vol. 445-448, pp. 686-688, 2006. https://doi.org/10.1016/j.physc.2006.05.005
  6. C. A. Baldan, U. R. Oliveira, A. A. Bernardes, V. P. Oliveira, C. Y. Shigue, and E. Ruppert, "Electrical and Superconducting Properties in Lap Joints for YBCO Tapes," J. Supercond. Nov. Magn., vol. 26, pp. 2089-2092, 2013. https://doi.org/10.1007/s10948-012-1905-6
  7. M. Sugano, T. Nakamura, K. Shikimachi, N. Hirano, and S. Nagaya, "Stress tolerance and fracture mechanism of solder joint of YBCO coated conductors," IEEE Trans. Appl. Supercond., vol. 17, no. 2, pp. 3067-3070, 2007. https://doi.org/10.1109/TASC.2007.899395
  8. W. Liu, X. Zhang, J. Zhou, and Y. Zhou, "Delamination Strength of the Soldered Joint in YBCO Coated Conductors and Its Enhancement," IEEE Trans. Appl. Supercond., vol. 25, no. 4, pp. 6606109, 2015.
  9. H. S. Kim, J. B. Song, N. Y. Kwon, K. L. Kim, and H. G. Lee, "The influence of heat-treatment and oxygenation annealing on the superconducting properties of YBCO coated conductors," Supercond. Sci. Technol., vol. 22, pp. 125016, 2009. https://doi.org/10.1088/0953-2048/22/12/125016
  10. M. O. Eatough, G. S. Ginley, B. Morosin, and E. L. Venturini, "Orthorhombic-tetragonal phase transition in high-temperature superconductor YBa2Cu3O7," Appl. Phys. Lett., vol. 51, no. 5, pp. 367-368, 1987. https://doi.org/10.1063/1.98443
  11. W. Lo, Tong B. Tang, Chaorui Li, and Yuhuan Xu, "Thermodynamic studies of the orthorhombic-tetragonal transition in Ba2YCu3O7-δ," Appl. Phys. Lett., vol. 53, no. 26, pp. 2710-2712, 1988. https://doi.org/10.1063/1.100553
  12. C. P. Bean, "Magnetization of high-field superconductors," Rev. Mod. Phys., vol. 36, pp. 31-36, 1964. https://doi.org/10.1103/RevModPhys.36.31
  13. E. H. Brandt and M. Indenbom, "Type-II-superconductor strip with current in a perpendicular magnetic field," Phys. Rev. B, vol. 48, no. 17, pp. 12893-12906, 1993. https://doi.org/10.1103/physrevb.48.12893
  14. X. L. Wang, A. H. Li, S. Yu, S. Ooi, K. Hirata, et al., "Thermally assisted flux flow and individual vortex pinning in Bi2Sr2Ca2Cu3O10 single crystals grown by the traveling solvent floating zone technique," J. Appl. Phys., vol. 97, pp. 10B114, 2005. https://doi.org/10.1063/1.1855531
  15. Byung Du Park and Kyu Jeong Song, "Magnetic Property of the High-Temperature Superconductor GdBCO Coated Conductor," New Physics: Sae Mulli, vol. 67, no. 11, pp. 1264-1271, 2017. https://doi.org/10.3938/npsm.67.1264
  16. Seok Han Yang and Kyu Jeong Song, "The Superconducting Properties of a High-Temperature Superconducting GdBCO-Coated Conductor," New Physics: Sae Mulli, vol. 68, no. 12, pp. 1293-1301, 2018. https://doi.org/10.3938/NPSM.68.1293
  17. Kyu Jeong Song, Seok Han Yang, Gi Ppeum Choi, Jichon Lim, and Chan Park, "The Magnetic Properties of Several HTS GdBCO-Coated Conductors," IEEE Trans. Appl. Supercond., vol. 29, no. 5, pp. 6601204, 2019.
  18. S. Kang, A. Goyal, J. Li, A. A. Gapud, P. M. Martin, et al., "High-Performance High-Tc Superconducting Wires," Science, vol. 311, no. 5769, pp. 1911-1914, 2006. https://doi.org/10.1126/science.1124872