Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Microstructure and Superconducting Properties of (Bi,Pb)-Sr-Ca-Cu-O-(Ag, Au, Mg) Composites

(Bi,Pb)-Sr-Ca-Cu-O-(Ag, Au, Mg) 복합체의 미세구조와 초전도 특성

  • 이민수 (한밭대학교 환경보존방재연구소)
  • Published : 2003.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

Samples were prepared by the solid-state reaction method. The nominal composition of the samples was B $i_{1.84}$P $b_{0.34}$S $r_{1.91}$C $a_{2.03}$C $u_{3.06}$ $O_{10+{delta}$ prepared from powder of B $i_2$ $O_3$, PbO, SrC $O_3$, CaC $O_3$, and CuO. They were pulverized, mixed with AgO, A $u_2$ $O_3$and MgO of 50 wt%. Finally, they were sintered at 820 to 85$0^{\circ}C$ in air. The structural characteristics, the microstructure of surface and the critical temperature with respect to the each samples were analyzed by XRD, $T_{c}$, SEM and EDS respectively. It was found that the the critical temperature of the silver oxide additive samples (99.58 K) is higher than those of gold or magnesium oxides additive samples, but all those values are lower than that of pure Bi-2223 phase. The microstructure of surface showed the tendency which the AgO additive samples become more minuteness than A $u_2$ $O_3$ and MgO additive samples.s.samples.s.

B $i_{1.84}$P $b_{0.34}$S $r_{1.91}$C $a_{2.03}$C $u_{3.06}$ $O_{10+{delta}$의 출발조성비로 99.99%의 순도를 갖는 B $i_2$ $O_3$, PbO, SrC $O_3$, CaC $O_3$, CuO 분말 시약을 사용하여 고상반응법으로 합성하였다. 이렇게 합성된 Bi계 110 K 단일상의 고온초전도 물질을 다시 분말 상태로 만든 후, AgO, A $u_2$ $O_3$, MgO 금속산화물 분말을 각각 50 wt%의 비율로 혼합하였다. AgO, A $u_2$ $O_3$, MgO의 금속분말이 혼합된 시편들을 820~85$0^{\circ}C$로 각각 최종 소결시킨 후, 각 시편들에 대하여 XRD, $T_{c}$, SEM, EDS 등의 실험을 진행하였다. 얻어진 시편들의 $T_{c}$는 순수한 Bi-2223 상보다 낮지만, AgO 금속분말을 50 wt% 혼합한 시편의 임계전이온도가 99.58 K로 A $u_2$ $O_3$나 MgO를 50 wt% 혼합한 시편들보다 더 높게 나타났다. 또한, 표면 입자(grain)의 배열 상태는 AgO 금속분말을 50 wt% 혼합한 시편이 A $u_2$ $O_3$나 MgO를 50 wt% 혼합한 시편들보다 더 치밀화 되는 경향을 나타내었다.내었다.나타내었다.내었다.

Keywords

References

  1. Appl. Phys. Lett. v.51 no.1 Structure of the Single-phase High-temperature Superconductor YBa₂Cu₃$O_{7-δ}$ M.A.Beno;L.Soderholm;D.W.Capone,Ⅱ.;D.G.Hinks;J.D.Jorgensen;J.D.Grace;I.K.Schuller;C.U.Segre;K.Zhang https://doi.org/10.1063/1.98886
  2. Jpn. J. Appl. Phys. v.27 no.10 Preparation of Single 110K Phase of the Bi-Pb-Sr-Ca-Cu-O Superconductor S.Koyama;U.Endo;T.Kawai https://doi.org/10.1143/JJAP.27.L1861
  3. Physica C v.161 no.5;6 Towards the Synthesis of the Single-phase Bi-2223 Superconductor from Stoichiometric (Bi,Pb)₂Ca₂Sr₂Cu₃$O_{y}$ Compositions P.V.P.S.S.Sastry;J.V.Yakhmi;R.M.Iyer https://doi.org/10.1016/0921-4534(89)90401-2
  4. Phys. Rev. B v.41 no.[10-A] Preparation Process, Crystal Structure, and Physical Properties of the 110-K Single-phase Pb-Bi-Sr-Ca-Cu-O Superconductor 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;N.C.Shi https://doi.org/10.1103/PhysRevB.41.6541
  5. J. Kor. Ceram. Soc. v.29 no.2 The Effect of Sintering Time on the Stabilization of the Bi-Pb-Sr-Ca-Cu-O Superconduction Phase K.W.Hyung;S.H.Park;D.W.Lee;T.J.Han;B.S.Choi;C.E.Kim
  6. J. of the Kor. Ceram. Soc. v.35 no.1 Variation in the Kind of Formed Superconducting Oxide and Microstructure with Heat-treatment Temperature in Yb-Ba-Cu-Ag Ribbons M.Y.Song
  7. J. of the Kor. Ceram. Soc. v.35 no.10 Effect of Na Substituion for the Ca Site in the Bi₂Sr₂$Ca_{1-x} Na_{x} Cu_{2} O_{8+y}$ Superconductors M.S.Lee;S.Y.Song;C.Y.Lee;K.Y.Song;B.S.Choi
  8. J. Appl. Phys. v.70 no.10-2 High Transport $J_{c}$ and Magnetization in Textured Bi-Pb-Sr-Ca-Cu-O Superconductors T.H.Tiefel;S.Jin https://doi.org/10.1063/1.349890
  9. Phys. Rev. B v.45 no.18 Effect of Superimposed Electrical and Thermal Gradients in Superconducting Polycrystalline Bi-Pb-Sr-Ca-Cu-O R.A.Doyle;V.V.Gridin https://doi.org/10.1103/PhysRevB.45.10797
  10. Supercond. Sci. Technol. v.8 no.5 Precipitaion of Impurity Phases and its Effect on the Intergrain Conducting Properties of Ag-doped Bi(Pb)-Sr-Ca-Cu-O K.Yoshida;Y.Sano;Y.Tomii https://doi.org/10.1088/0953-2048/8/5/010
  11. Supercond. Sci. Technol. v.10 no.7A Introduction of Pinning Centers into Bi-(Pb)-Sr-Ca-Cu-O Superconductors S.X.Dou;X.L.Wang;Y.C.Guo;Q.Y.Hu;P.Mikheenko;J.Horvat;M.Ionescu;H.K.Liu https://doi.org/10.1088/0953-2048/10/7A/006
  12. Appl. Phys. Lett. v.55 no.2 Magnetization and Flux Creep in Textured Bi(Pb)-Sr-Ca-Cu-O Oxide Superconductors H.Kumakura;K.Togano;E.Yanagisawa;H.Maeda https://doi.org/10.1063/1.102401
  13. Physica C v.170 no.3;4 Oscillator Studies of Intragrain and Intergrain Dissipation in Y-Ba-Cu-O and Bi-Pb-Sr-Ca-Cu-O Ceramic Superconductors D.J.Baar;J.P.Franck;J.P.Harrison;Y.Lacroix;M.K.Yu https://doi.org/10.1016/0921-4534(90)90316-7
  14. Supercond. Sci. Technol. v.4 no.1S Critical Current Density and Magnetization of Ag-sheathed Tapes of Bi(Pb)-Sr-Ca-Cu-O A.Oota;A.Yata;K.Hayashi;K.Ohba https://doi.org/10.1088/0953-2048/4/1S/067
  15. Supercond. Sci. Technol. v.6 no.3 Effect of Interfacial Layers on the Mechanical Properties of Ag-clad Bi-based Superconducting Composite Tapes S.X.Dou;Y.C.Guo;H.Yau;H.K.Liu https://doi.org/10.1088/0953-2048/6/3/006
  16. Cryogenics v.34 no.4 Mechanical Strain Effects in Design Considerations of High $T_{c}$ Superconducting Pancake Coil Magnets S.Patel https://doi.org/10.1016/0011-2275(94)90111-2
  17. Appl. Phys. Lett. v.67 no.20 Effects of Axial Tensile and Bending Strains on Critical Currents of Mono- and Multicored (Bi,Pb)₂Sr₂Ca₂Cu₃$O_{10}$-Ag Tapes M.Suenaga;Y.Fukumoto;P.Haldar;T.R.Thurston;U.Wildgruber https://doi.org/10.1063/1.114940
  18. Physica C v.266 no.3;4 Influence of Mechanical Strain on Critical Current Density and Micro-Structure of Silver-sheathed Bi(Pb)2223 Superconducting Tapes J.K.F.Yau;N.Savvides;C.C.Sorrell https://doi.org/10.1016/0921-4534(96)00327-9
  19. IEEE Trans. Appl. Supercond. v.7 no.2 Mechanical Properteis and Strain Effects in Bi₂Sr₂CaCu₂$O_{x}$/AgMg Composite Conductors J.Schwartz;B.C.Amm;H.Garmestani;D.K.Hilton;Y.Hascicek https://doi.org/10.1109/77.620991
  20. Physica C v.316 no.1 Effect of Ag, Ag ₂O and AgNO₃ Addition in (Bi,Pb)-2223/Ag Powder-in-tube Tapes A.Sobha;R.P.Aloysius;P.Guruswamy;K.G.K.Warrier;U.Syamaprasad https://doi.org/10.1016/S0921-4534(99)00245-2
  21. Applied Superconductivity v.6 no.6 Effect of Ag Doping on Structure and Critical Temperature of Bi₂Sr₂CaCu₂$O_{8+δ}$ Superconductors T.A.Deis;M.Lelovic;N.G.Eror;U.Balachandran https://doi.org/10.1016/S0964-1807(98)00045-3
  22. Supercond. Sci. Technol. v.15 Effect of Intermediate Rolling on the Transport Properties of Ag-sheathed (Bi, Pb)₂Sr₂Ca₂Cu₃Oχ Superconductor K.T.Lau;S.K.Chen;R. Abd-Shukor https://doi.org/10.1088/0953-2048/15/3/313
  23. IEEE Trans. Appl. Supercond. v.5 Ag Doping Effects on the Microstructure and Properties of Unidirectional Grown Y-Ba-Cu-O Superconductors N.Hirano;S.Nagaya https://doi.org/10.1109/77.402871
  24. Physica C v.292 no.1 The Effect of Ag Electromigration on the Properties of BiPbSrCaCuO Super-Conductors T.D.Dzhafarov;M.Yilmazlar https://doi.org/10.1016/S0921-4534(97)01584-0
  25. J. Alloys Compd. v.236 Effect of Mechanical Grinding on the Transport Critical Current Density and the Flux Pinning Force of a YBa₂Cu₃$O_{y}$-Ag Composite Superconductor S.Katsuyama;Y.Harada;T.Tatani;Y.Ozawa;K.Majima;H.Nagai https://doi.org/10.1016/0925-8388(95)02146-9
  26. Supercond. Sci. Technol. v.9 no.5 Effects of MgO Addition on Phase Evolution and Flux Pinning of Bi-2212/Ag Tapes Fabricated by Electrophoretic Deposition and Partial-melting Processing S.I.Huang;D. Dew-Hughes;D.N.Zheng;R.Jenkins https://doi.org/10.1088/0953-2048/9/5/006
  27. Physica C v.298 no.3;4 Effects of Nanosize MgO Additions to Bulk $Bi_{2.1} Sr_{1.7}$CaCu₂Oχ W.Wei;J.Schwartz;K.C.Goretta;U.Balachandran;A.Bhargava https://doi.org/10.1016/S0921-4534(97)01889-3
  28. Supercond. Sci. Technol. v.11 no.12 Effect of Adding MgO to Bulk Bi2212 Melt Texured in a High Magnetic Field S.Pavard;C.Villard;D.Bougault;R.Tournier https://doi.org/10.1088/0953-2048/11/12/002
  29. Advances in Superconductivity v.10 no.1 Effect of MgO Particles Addition on Flux Pinning Characteristic in Partial-melting Processed Bi-2212 Bulk B.Ni;J.Xiong;Z.Zhao
  30. Supercond. Sci. Technol. v.12 no.1 Chemical and Physical Stability of MgO with LaBaCaCu₃$O_{7-δ}$ Superconductors D. A. Landinez Tellez;Y.P.Yadava;J.M.Ferreira;J.A.Aguiar https://doi.org/10.1088/0953-2048/12/1/005
  31. Physica C v.316 no.3;4 Critical Current Density of 165kA/㎠ at 4 K in Bulk Bi2212/MgO Textured by Solidification in a High Magnetic Field and Hot Forging S.Pavard;D.Bourgault;C.Villard;R.Tournier https://doi.org/10.1016/S0921-4534(99)00259-2
  32. IEEE Trans. Appl. Supercond. v.9 no.2 Effect of Ag Addition on the Mechanical Properties of Bulk Superconductors T.Miyamoto;J.Katagiri;K.Nagashima;M.Murakami https://doi.org/10.1109/77.784872
  33. Mater. Sci. Eng. B v.26 A.c. and d.c. Susceptibility Studies on Silver-doped BPSCCO(2223) Superconductors M.Muralidhar;K. Nanda Kishore;S.Satyavathi;O.Pena;V. Hari Babu https://doi.org/10.1016/0921-5107(94)90164-3
  34. Physica C v.357-360 Effect of MgO Content on the Formation and Superconducting Properties of (Bi,Pb)-2223 Phase in the Partial-melting and Sintering Process X.Y.Lu;A.Nagata;D.Kamio;K.Sugawara;S.Kamada;Watanabe;S.Hanada https://doi.org/10.1016/S0921-4534(01)00377-X
  35. J. Solid State Chem. v.139 An Investigation of the Transformation from Bi₂Sr₂CaCu₂$O_{8}$ to Bi₂Sr₂Ca₂Cu₂$O_{10}$ H.Faqir;H.Chiba;O.Monnereau;G.Vacquier;M.Kikuchi;Y.Syono https://doi.org/10.1006/jssc.1997.7717