Microstructure and Superconducting Properties of Ag-$Bi_{1.84}Pb_{0.34}Sr_{1.91}Ca_{2.03}Cu_{3.06}O_{10+{\delta}}$ Composites

Ag-$Bi_{1.84}Pb_{0.34}Sr_{1.91}Ca_{2.03}Cu_{3.06}O_{10+{\delta}}$ 복합체의 미세구조와 초전도특성

  • 이민수 (한밭대 환경보존재해연구소)
  • Published : 2003.06.01

Abstract

Samples with the nominal composition, Ag-$Bi_{1.84}Pb_{0.34}Sr_{1.91}Ca_{2.03}Cu_{3.06}O_{10+{\delta}}$ high $T_{c}$ superconductors containing Ag as an additive were fabricated by a solid-state reaction method. Samples with Ag of 10 wt%, 30 wt%, and 50 wt% each were sintered at $860^{\circ}C$~$870^{\circ}C$ for 24 hours. The structural characteristics, the microstructures and the critical temperature with respect to the each samples were investigated by XRD, four-prove methode, SEM and EDS respectively. The $T_{c}\;^{zero}$ of the sample with the 50 wt% Ag additive at the surface showed 94 K.

Keywords

Bi(Pb)-Sr-Ca-Cu-O;High-Tc;Microstructure;EDS;SEM

References

  1. X. Y. Lu, A. Nagata, D. Kamio, K. Sugawara, S. Kamada, Watanabe and S. Hanada, 'Effect of MgO content on the formation and superconducting properties of (Bi,Pb)-2223 phase in the partial-melting and sintering process', Physica C, 357-360, 828-831 (2001)
  2. M. Muralidhar, K. Nanda Kishore, S. Satyavathi, O. Pena and V. Hari Babu, 'A.c. and d.c. susceptibility studies on silver-doped BPSCCCO(2223) superconductors', Mater. Sci. Eng. B, 26, 151-155 (1994) https://doi.org/10.1016/0921-5107(94)90164-3
  3. T. Miyamoto, J. Katagiri, K. Nagashima and M. Murakami, 'Effect of Ag Addition on the Mechanical Properties of Bulk Superconductors', IEEE Trans. Appl. Supercond., 9[2], 2066-2069 (1999) https://doi.org/10.1109/77.784872
  4. T. D. Dzhafarov and M. Yilmazlar, 'The effect of Ag electromigration on the properties of BiPbSrCaCuO superconductors', Physica C, 292, 140-146 (1997) https://doi.org/10.1016/S0921-4534(97)01584-0
  5. S. Katsuyama, Y. Harada, T. Tatani, Y. Ozawa, K. Majima and H. Nagai, 'Effect of mechanical grinding on the transport critical current density and the flux pinning force of a $YBa_2Cu_3O_y-Ag$ composite superconductor', J. Alloys Compd., 236, 165-170 (1996) https://doi.org/10.1016/0925-8388(95)02146-9
  6. N. Hirano and S. Nagaya, 'Ag doping effects on the microstructure and properties of unidirectional grown Y-Ba-Cu-O superconductors', IEEE Trans. Appl. Supercond., 5, 1564-1567 (1995) https://doi.org/10.1109/77.402871
  7. K. T. Lau, S. K. Chen and R. Abd-Shukor, 'Effect of intermediate rolling on the transport properties of Ag-sheathed $(Bi, Pb)_2Sr_2Ca_2Cu_3O_x$ superconductor tapes', Supercond. Sci. Technol., 15, 351-355 (2002) https://doi.org/10.1088/0953-2048/15/3/313
  8. W. Wei, J. Schwartz, K. C. Goretta, U. Balachandran and A. Bhargava, 'Effects of nanosize MgO additions to bulk $Bi_{21}Sr_{17}CaCu_2O_x$', Physica C, 298, 279-288 (1998) https://doi.org/10.1016/S0921-4534(97)01889-3
  9. T. Haugan, W. Wong-Ng, L. P. Cook, H. J. Brown, L. Swartzendruber and D. T. Shaw, 'Flux pinning of $Bi_2Sr_2CaCu_2O_8+/Ag$ superconductors utilizing $(Sr,Ca)_{14}Cu_{24}O_{41}$ defects and nanophase $Al_2O_3$ and Au particles', Physica C, 335, 129-133 (2000) https://doi.org/10.1016/S0921-4534(00)00157-X
  10. R. M. Baurceanu, V. A. Maroni, N. N. Merchant, A. K. Fischer, M. J. McNallan and R. D. Parrella, 'Time evolution of phase composition and microstructure in the Ag/Bi-2223 composite superconductor heat-treated at specific p02/temperature set points', Supercond. Sci. Technol., 15, 1160-1166 (2002) https://doi.org/10.1088/0953-2048/15/7/331
  11. E. Bruneel, F. Persyn and S. Hoste, 'Mechanical and superconducting properties of BiPbSrCaCuO-PE and BiPbSrCaCuO-MgO composites', Supercond. Sci. Technol., 11, 88-93 (1998) https://doi.org/10.1088/0953-2048/11/1/018
  12. Min Soo Lee and Ki Young Song, 'Effect of Nd substitution for Ca site in the 110 K phase of (Bi, Pb)-Sr-Ca-Cu-O superconductors', Supercond. Sci. Technol., 15, 851-854 (2002) https://doi.org/10.1088/0953-2048/15/6/301
  13. P. Diko, G. Krabbes and C Wende, 'Influence of Ag addition on crystallization and microstructure of melt-grown single-grain $YBa_2Cu_3O_7$ bulk superconductors', Supercond. Sci. Technol., 14, 486-495 (2001) https://doi.org/10.1088/0953-2048/14/7/311
  14. L. Jiang, Y. Sun, X. Wan, K. Wang, G. Xu, X. Chen, K. Ruan and J. Du, 'Improvement of Formation and Superconductivity of the $(Bi,Pb)_2Ca_2Sr_2Cu_3O_y$ Silver-sheathed Tape with $B_2O_3$ Addition', Physica C, 300, 61-66 (1998) https://doi.org/10.1016/S0921-4534(98)00064-1
  15. M. Ishizuka, Y. Tanaka, T. Hashimoto and H. Maeda, 'Influences of Cu Composition and Sintering Condition in Bi-2223 Tapes using Ag-Cu Alloy Sheath Doped with Ti, Zr or Hf', Physica C, 290, 265-274 (1997) https://doi.org/10.1016/S0921-4534(97)01622-5
  16. A. Sobha, R. P. Aloysius, P. Guruswamy, K. G. K. Warrier and U. Syamaprasad, 'Effect of Ag, $Ag_2O$ and $AgNO_3$ Addition in (Bi,Pb)-2223/Ag Powder-in-tube Tapes', Physica C, 316, 63-68 (1999) https://doi.org/10.1016/S0921-4534(99)00245-2
  17. T. A. Deis, M. Lelovic, N. G. Eror and U. Balachandran, 'Effect of Ag Doping on Structure and Critical Temperature of $Bi_2Sr_2CaCu_2O_{8+{\delta}$ Superconductors', Applied Superconductivity, 6[6], 279-284 (1998) https://doi.org/10.1016/S0964-1807(98)00045-3
  18. J. Maeda, T. Izumi and Y. Shiohara, 'Reaction between YBCO/Ag Superconductor and Melted Silver', Supercond. Sci. Technol, 12, 45-47 (1999) https://doi.org/10.1088/0953-2048/12/1/008
  19. S. Reich and I. Felner, 'Nonrandom Ceramic Superconductor-Metal Composites', J. Appl. Phys., 67[1], 388-392 (1990) https://doi.org/10.1063/1.345267
  20. K. Nomura, T. Sasaoka, J. Sato and S. Kuma, 'Influence of Ag-Au and Ag-Cu Alloys on $Bi_2Sr_2CaCu_2O_x$ Superconductor', Appl. Phys. Lett., 64[1], 112-113 (1994) https://doi.org/10.1063/1.110895
  21. S. Reich, V. M. Nabutovsky, 'Investigation of Connectivity in Silver-Ceramic superconductor Composites by their Field Screening Property', J. Appl. Phys., 68[2], 68-574 (1990) https://doi.org/10.1063/1.346797
  22. A. K. Sarkar, I. Maartense and T. L. Peterson, 'Limit of Superconductivity in Silver/ Superconductor Metal-matrix Composites Prepared with Bi-Pb-Sr-Ca-Cu-O Ceramic Powders', J. Mater. Res., 7[7], 1672-1678 (1992) https://doi.org/10.1557/JMR.1992.1672
  23. T. Kawai, T. Horiuchi, K. Mitsui, K. Ogura, S. Takagi and S. Kawai, 'Effect of Alkaline Metal Substitutions to Bi-Sr-Ca-Cu-O Superconductor', Physica C, 161[5&6], 561-566 (1989) https://doi.org/10.1016/0921-4534(89)90390-0
  24. K. W. Hyung, S. H. Park, D. W. Lee, T. J. Han, B. S. Choi and C. E. Kim, 'The effect of Sintering Time on the Stabilization of the Bi-Pb-Sr-Ca-Cu-O Superconducting Phase', J. Korean Ceramic Society, 29[2], 95-100 (1992)
  25. F. Shi, T. S. Rong, S. Z. Zhou, X. F. Wu, J. Du, Z. H. Shi, C. G. Cui, R. Y. Jin, J. L. Zhang, Q. Z. Ran and N. C. Shi, 'Preparation Process, Crystal Structure, and Physical Properties of the 110-K Single-phase Pb-Bi-Sr-Ca-Cu-O Superconductor', Phys. Rev. B, 41 [10-A], 6541-6546 (1990) https://doi.org/10.1103/PhysRevB.41.6541
  26. P. V. P. S. S. Sastry, J. V. Yakhmi and R. M. Iyer, 'Towards the Synthesis of the Single-phase Bi-2223 Superconductor from Stoichiometric $(Bi,Pb)_2Ca_2Sr_2Cu_3O_y$ Compositions', Physica C, 161[5&6], 656-660 (1989) https://doi.org/10.1016/0921-4534(89)90401-2
  27. M. A. Beno, L. Soderholm, D. W. Capone II, D. G. Hinks, J. D. Jorgensen, J. D. Grace, I. K. Schuller, C. U. Segre and K. Zhang, 'Structure of the Single-phase High-temperature Superconductor $YBao_2Cu_3O_{7-d}$', Appl. Phys. Lett., 51[1], 57-59 (1987) https://doi.org/10.1063/1.98886
  28. S. Koyama, U. Endo and T. Kawai, 'Preparation of Single 110 K phase of the Bi-Pb-Sr-Ca-Cu-O Superconductor', Jpn. J. Appl. Phys., 27[10], L1861-L1863 (1988) https://doi.org/10.1143/JJAP.27.L1861