Pb2Y0.5Ca0.5Sr2Cu3O8+x Superconducting Ceramics from Glass Crystallization

  • Haixing Zheng
  • J. D. Mackenzie
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 36)

Abstract

Pb2Y0.5Ca0.5Sr2Cu3Oy forms a glass. The glass transition temperature and the first crystallization temperature of the glass are 344°C and 387°C, respectively. The density of the glass is 6.3146 g/cm3. Heat treatments of the glass in air do not produce Pb2Y0.5Ca0.5Sr2Cu3Oy superconducting phase at all temperatures, but heat treatments of the glass in argon yield the Pb2Y0.5Ca0.5Sr2Cu3Oy phase starting at 430° C. After being heat treated at 660°C for 8 hours in argon, the sample is superconducting with an onset Tc of 80 K.

Keywords

Crystallization Platinum Argon Toluene 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J.G. Bednorz and K.A. Muller, Z.Phys.B64, 189(1986)Google Scholar
  2. 2.
    M.K. Wu, J.R. Ashburn, C.J. Torng, P.H. Hor, R.J. Meng, L. Gao, Z.J. Huang, Y.Q. Wang and C.W. Chu, Phys. Rev. Lett., 58, 908(1987)CrossRefGoogle Scholar
  3. 3.
    A.F. Marshall et al., Phys. Rev. B37, 9353(1988)Google Scholar
  4. 4.
    H. Maeda, Y. Tanaka, M. Fukutomi and T. Asano, Jpn. J. Appl. Phys., 27, L209 (1988)CrossRefGoogle Scholar
  5. 5.
    C.W. Chu, J. Bechtold, L. Gao, et al., Phys. Rev. Lett., 60, 941 (1988)CrossRefGoogle Scholar
  6. 6.
    Z.Z. Sheng and A.M. Hermann, Nature 332, 138 (1988)CrossRefGoogle Scholar
  7. 7.
    R.M. Hazen, et al., Phys. Rev. Lett., 60, 1657(1988)CrossRefGoogle Scholar
  8. 8.
    L.F. Mattheiss, E.M. Gyorgy and D.W. Johnson, Jr., Phys. Rev. B 37, 3745(1988)CrossRefGoogle Scholar
  9. 9.
    R.J. Cava, B. Batlogg, J.J. Krajewski, et al., Nature, 336, 211(1988)CrossRefGoogle Scholar
  10. 10.
    M.A. Subramanian, J. Gopalakrishnan, C.C. Torardi, et al., Physica C, 157, 124(1989)CrossRefGoogle Scholar
  11. 11.
    D.G. Hinks, L. Soderholm, D.W. Capone II, et al., Appl. Phys. Lett., 53, 423 (1988)CrossRefGoogle Scholar
  12. 12.
    T. Komatsu, R. Sato, K. Imai, et al., Jpn. J. Appl. Phys., 27, L550 (1988)CrossRefGoogle Scholar
  13. 13.
    T. Minami, Y. Akamatsy, M. Tatsumisago, et al., Jpn. J. Appl. Phys., 27, L777 (1988)CrossRefGoogle Scholar
  14. 14.
    Haixing Zheng and J.D. Mackenzie, Phys. Rev., B38, 7166 (1988)Google Scholar
  15. 15.
    Ren Xu, Haixing Zheng and J.D. Mackenzie, to be published in J. Non-Cryst. SolidsGoogle Scholar
  16. 16.
    Y. Abe, H. Hosono, M. Hosoe, J. Iwase and Y. Kubo, Appl. Phys. Lett., 53, 1431 (1988)CrossRefGoogle Scholar
  17. 17.
    Haixing Zheng and J.D. Mackenzie, to be published in the Proceeding of the XV International Congress on Glasses, Leiningrad, USSR, July, 1989Google Scholar
  18. 18.
    Haixing Zheng and J.D. Mackenzie, to be publishedGoogle Scholar

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Haixing Zheng
    • 1
  • J. D. Mackenzie
    • 1
  1. 1.Department of Materials Science and EngineeringUniversity of California-Los AngelesLos AngelesUSA

Personalised recommendations