DOI QR코드

DOI QR Code

A Fabrication of YBCO Single Crystal using Infiltration and Growth Method

용융침투성장법을 이용한 YBCO 단결정 제조

  • 한상철 (한전전력연구원 초전도그룹) ;
  • 정년호 (한전전력연구원 초전도그룹) ;
  • 한영희 (한전전력연구원 초전도그룹) ;
  • 성태현 (한전전력연구원 초전도그룹)
  • Published : 2007.06.01

Abstract

Large and single-grain Y-Ba-Cu-O(YBCO) bulk superconductors have been fabricated by using a seeded infiltration and growth method. $Y_2BaCuO_5$(Y211) precursor pellets and $YBa_2Cu_3O_x$(Y123) liquid source pellets were prepared using commercial powder and were processed by infiltration and growth method to achieve low pore and high trapped field property. The superconductor properties of the single crystal are measured and analyzed in relation with the density and size of the Y211 particle in the Y123 matrix. An optimum processing condition is suggested based on the analyzed results.

References

  1. S. Jin, T. H. Tiefel, R. C. Sherwood, M. E. Davis, R. B. van Dover, G. W. Kammlott, R. A. Fastnacht, and H. D. Keith, 'High critical currents in Y-Ba-Cu-O superconductors', Appl. Phys. Lett., Vol. 52, p. 2074, 1988 https://doi.org/10.1063/1.99751
  2. 노태형, 송정환, 장규철, 한이섭, 김소정, 구본 급, 김호기, '부유대역 용융응고법으로 제조된 $YBa_2Cu_3O_x$ 산화물초전도체의 미세구조와 전기 적 특성', 전기전자재료학회논문지, 12권, 6호, p.536, 1999
  3. R. L. Meng, L. Gao, P. Gautier-Picard, D. Ramirez, Y. Y. Sun, and C. W. Chu, 'Growth and possible size limitation of single-grain $YBa_2Cu_3O_7$, Physica C, Vol. 232, p. 337, 1994 https://doi.org/10.1016/0921-4534(94)90792-7
  4. E. S. Reddy and T. Rajasekharan, 'Fabrication of textured $REBa_2Cu_3O_7/RE_2BaCuO_5(RE= Y, Gd)$ composites by infiltration and growth of RE2BaCuO preforms by liquid phase', Supercond. Sci. Technol., Vol. 11, p. 523, 1998 https://doi.org/10.1088/0953-2048/11/5/014
  5. H. Fang and K. Ravi -Chandar, 'Fabrication of Y123 disk by the seeded infiltration and growth method', Physica C, Vol. 340, p. 261, 2000 https://doi.org/10.1016/S0921-4534(00)01328-9
  6. K. Lida, N. H. Babu, Y. Shi, and D. A. Cardwell, 'Seeded infiltration and growth of large, single domain Y-Ba-Cu-O bulk superconductors with very high critical current densities', Supercond, Sci. Technol., Vol. 18, p. 1421, 2005 https://doi.org/10.1088/0953-2048/18/11/002
  7. S. Meslin, K. Lida, N. H. Babu, D. A. Cardwell, and J. G. Noudem, 'The effect of Y - 211 precursor particle size of the microstructure and properties of Y-Ba-Cu-O bulk superconductors fabricated by seeded infiltration and growth', Supercond. Sci. Technol., Vol. 19, p. 711, 2006 https://doi.org/10.1088/0953-2048/19/8/005
  8. S. Honjo, M. j. Cima, M. C. Flemings, T. Ohkuma, H. Shen, K. Rigby, and T. H. Sung, 'Seeded crystal growth of $YBa_2Cu_3O_{6.5}$ in semisolid melts', J. Material Research, Vol. 12, p. 880, 1997 https://doi.org/10.1557/JMR.1997.0128