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Investigations on BaO2 Additions in Ag-Clad Bi2Sr2CaCu2Ox Conductors

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Advances in Cryogenic Engineering Materials

Part of the book series: Advances in Cryogenic Engineering ((ACRE,volume 44))

Abstract

The influence of the addition of BaO2 on magnetic and transport properties of Bi2Sr2CaCu2OX superconductors was studied. Several compositions with varying BaO2 fractions were investigated. Both bulk samples and Ag-clad wires were fabricated for every composition. Differential thermal analysis and x-ray diffraction measurements showed a reaction between BaO2 and the precursor, while microstructural investigations revealed that the Ba remained homogeneously distributed in the Bi-2212. Magnetization measurements using SQUID and vibrating sample magnetometer showed improved flux pinning in the doped samples. Heat treatment process was varied to optimize the critical current densities. High current densities were achieved at high magnetic fields.

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References

  1. Michiya Okada, Kazuhide Tanaka, Naomi Inoue, Junichi Sato, Hitochi Kitaguchi, Hiroaki Kumakura, Tsukasa Kiyosi, Kioshi Inoue and Kazumasa Togano, “Transport Properties of Bi-2212/Ag Superconducting Magnet with I, over 500A”, Jpn. J. Appl. Phys. Vol. 34 (1995) pp. L981 - L983

    Article  Google Scholar 

  2. W. Dai, K.R. Marken Jr., S. Hong, L. Cowey, K Timms and IMCDougall, “Fabrication of High T, Coils from Bi-2212 Powder in Tube and DIP Coated Tape”, Proceedings Applied Superconductivity Conference, Boston (1994)

    Google Scholar 

  3. H.W. Weijers, D. Hazelton, L. Cowey, Y.S. Hascicek, I. Mutlu. U.P.Trociewitz and S.W. van Sciver, “Bi-2212 Coils for IT Class Insert Coils”, Proceedings ICMC-conference, Portland (1997)

    Google Scholar 

  4. U. Balachandran, “Development of Ceramic Superconmductors for Electric Power Aplications”, Proceedings of International Workshop on High-Temperature Superconductivity, Jaipur (1996)

    Google Scholar 

  5. P. Haldar and L. Motwidlo, J. Metals 44 (10), 54–58 (1992)

    Google Scholar 

  6. D.C. Larbalestier, “Superconductor Flux Pinning and Grain Boundry Control”, Science 274, 1 (1996)

    Article  Google Scholar 

  7. K.C. Goretta, V.R. Todt, D.J. Miller, M.T. Langan, Y.L. Chen and U. Balachandran, “Engineered Flux-Pinning Centers in Bi2Sr2CaCu2O, and TIBa2Ca2Cu3O, Superconductors”, Journal of Electronic Materials, Vol. 24, No. 12 (1995)

    Google Scholar 

  8. Peter Majewski, Steffen Elschner, Fritz Aldinger, “Enhanced Pinning by Second-Phase Precipitates in Sr Rich Bi2Sr2CaCu2O8 Ceramics”, Physica C 249 (1995) 234–240

    Article  ADS  Google Scholar 

  9. J. Schwartz and S. Wu, “Enhanced Flux-Line Pinning in Bi2Sr2CaCu2O, by Neutron Irradiation and Li(n, 3T)a Reaction-Induced Charged Particle Defects”, Journal of Applied Physics 73 (3), 1343–1347 (1993)

    Article  ADS  Google Scholar 

  10. J. Schwartz and S. Wu, “Properties of Li-doped, Polycristalline, Melt-Textured Bi-Sr-Ca-Cu-O Tapes Prepared by Powder-In-Tube Processing”, Physica C 185–189 2403–2404 (1991)

    Article  ADS  Google Scholar 

  11. S. Wu, J. Schwartz, G.W. Raban Jr., “Superconducting Properties and Microstructural Evolution of Li doped Bi2Sr2CaCu2O,”, Physica C 246 (1995) 297–308

    Article  ADS  Google Scholar 

  12. E.E. Hellstrom, “Processing Bi-Based High-T, Superconducting Tapes, Wires, and Thick Films for Conductor Applications”,in: “High-Temperature Superconducting Materials Science and Engineering”, Donglu Shi, ed., Pergamon (1995), p. 383 f.f.

    Google Scholar 

  13. E.E. Hellstrom and W. Zang, “Formation and Prevention of Bubbles when Melt Processing Ag-Sheathed Bi2Sr2CaCu2O, (2212) Conductors”, Supercond. Sci. Technol. 8 (1995) 327–323

    Article  ADS  Google Scholar 

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Trociewitz, U.P., Sastry, P.V.P.S.S., Boutemy, B.T., Sahm, P.R., Schwartz, J. (1998). Investigations on BaO2 Additions in Ag-Clad Bi2Sr2CaCu2Ox Conductors. In: Balachandran, U.B., Gubser, D.G., Hartwig, K.T., Reed, R.P., Warnes, W.H., Bardos, V.A. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering, vol 44. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9056-6_87

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  • DOI: https://doi.org/10.1007/978-1-4757-9056-6_87

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-9058-0

  • Online ISBN: 978-1-4757-9056-6

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