Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Electrical Characteristics of Renewable Electrical Energy Superconducting Precursor using Organic Metal Salts Method for Electrical Power Transmission

  • Lee, Sang-Heon (Department of Electronic Engineering, Sun Moon University)
  • Published : 2005.12.01
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Abstract

We have fabricated superconductor ceramics by chemical process. A high Tc superconductor with a nominal composition of $Bi_2Sr_2Ca_2Cu_3O_y$ was prepared by the organic metal salts method. Experimental results suggest that the intermediate phase formed before the formation of the superconductor phase may be the most important factor. The relation between electromagnetic properties of Bi HTS and external applied magnetic field was studied. The electrical resistance of the superconductor was increased by the application of the external magnetic field. But the increase in the electrical resistance continues even after the removal of the magnetic field. The reason is as follows; the magnetic flux due to the external magnetic field penetrates through the superconductor and the penetrated magnetic flux is trapped after the removal of the magnetic flux.

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References

  1. J. Yang, D. Shi, X. Wang, A. Liu, and G. Yuan, 'Fabrication of YBCO coated conductors using magnetron sputtering', Physica C, Vol. 341, p. 2499, 2000
  2. G. Celentano, C.Annio, V. Boffa, L. Cioneta, F. Fabbri, Gambradella, V. Galluzzi, and A. Mancini, 'Superconducting and structural properties of YBCO thick films grown on biaxiaaly oriented architecture' Physica C, Vol. 341, p. 2501, 2000
  3. Y. Dimitriev and E. Kashchieva, 'Charge-densitywave transport properties', J. Mater. Sci., Vol. 10, No. 2,p. 1419, 1995
  4. M. Murakami, M. Morita, K. Doi, and K. Miyamoto, 'A new process with the promise of high $J_c$ in oxide superconductors', Jpn. J. Appl. Phys., Vol. 28, No.7, p. 1189, 1989 https://doi.org/10.1143/JJAP.28.1989
  5. S. G. Lee and S. H. Lee, 'Dielectric properties of screen-printed (Ba,Sr,Ca)$TiO_3$ thick films for microwave phase shifters', Journal of the Korean Physical Society, Vol. 44, No.2, p. 393, 2004
  6. S. G. Lee and S. H. Lee, 'Structural and dielectric properties of barium strontium calcium titanate thick films modified with $MnO_2$ for phased array antennas', Material Letters, Vol. 58, p. 110,2003
  7. Y. B. Kim, C. F. Hempstead, and A. R. Strnad, 'Flux-flow resistance in type - II superconductor', Phys. Rev., Vol. 139, No. 4A, p. A1163, 1995