Skip to main content
SpringerLink
Log in

A study on the stability of superconducting YBa2Cu3O7−x phase

  • Papers
  • Published:
Journal of Materials Science: Materials in Electronics Aims and scope Submit manuscript

Abstract

The thermal stability of the superconducting phase of nominal composition YBa2Cu3O7−x -sintered pellets has been studied with respect to different temperatures (ranging from 300 to 950° C), time (ranging from 1 to 72 h), oxygen partial pressure (from 4 Pa to 1 atm) and carbon dioxide partial pressure (from 10−4 Pa to 1 atm). Annealed samples were characterized by X-ray diffraction analysis, optical microscopy, and resistive measurements of the superconductive transition temperature. A stability field of the orthorhombic and tetragonal phases was obtained, showing a region of coexistance. The decomposition of the 1 2 3 phase is found to be strongly influenced by the presence of a small amount of CO2 (1 p.p.m.) in the sintering atmosphere. A sintering process is proposed to avoid the formation of by-products.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. K. GALLAGHER,Adv. Ceram. Mater. 2 (1987) 632.

    Google Scholar 

  2. T. W. BUTTONet al., Brit. Ceram. Trans. 86 (1987) 166.

    Google Scholar 

  3. P. STROBELet al., Nature 327 (1987) 306.

    Google Scholar 

  4. K. G. FRASE, E. G. LIRNGER and D. R. CLARK,Adv. Ceram. Mater. 2 (1987) 689.

    Google Scholar 

  5. B. G. HYDEet al., Nature 327 (1987) 402.

    Google Scholar 

  6. B. KUMARet al., J. Mater. Sci. 23 (1988) 3879.

    Google Scholar 

  7. P. K. GALLAGHERet al., Mater. Res. Bull. 22 (1987) 995.

    Google Scholar 

  8. J. D. JORGENSENet al., Phys. Rev. B7 (1987) 3608.

    Google Scholar 

  9. M. F. YANet al., Appl. Phys. Lett. 51 (1987) 532.

    Google Scholar 

  10. A. BARKATT, H. HOJAJI and K. A. MICHAEL,Adv. Ceram. Mater. 3 (1987) 701.

    Google Scholar 

  11. R. L. BARNS and R. A. LAUDISE,Appl. Phys. Lett. 51 (1987) 1373.

    Google Scholar 

  12. N. P. BAUSAL and A. L. SANDKUHL ibid.,52 (1988) 323.

    Google Scholar 

  13. H. WPANGet al., J. Amer. Ceram. Soc. 71 (1988) C-463.

  14. N. H. WANGet al., J. Mater. Sci. 8 (1989) 517.

    Google Scholar 

  15. G. DELL'AGLIet al., Ceramica Acta 3 (1989) (in press).

  16. T. B. MASSALSKY (ed) Binary Alloy Phase Diagrams, Vol. 1 (American Society for Metals, Metals Park, Ohio, 1986) p. 941.

    Google Scholar 

  17. R. S. ROTH, K. L. DAVIS and J. R. DENNIS,Adv. Ceram. Mater. 2 (1987) 303.

    Google Scholar 

  18. T. ITOH, M. UZAWA and H. UCHIKAWA,J. Amer. Ceram. Soc. 71 (1988) C-188.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dipartimento di Ingegneria dei Materiali e della Produzione, Università di Napoli “Federico II”, Italy

    G. Dell'Agli, O. Marino, G. Mascolo & P. Pernice

  2. Dipartimento di Scienze Fisiche, Università di Napoli “Federico II”, Italy

    A. Di Chiara, G. Pepe & U. Scotti Di Uccio

Authors
  1. G. Dell'Agli
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. O. Marino
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. Mascolo
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Pernice
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. Di Chiara
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. G. Pepe
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. U. Scotti Di Uccio
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dell'Agli, G., Marino, O., Mascolo, G. et al. A study on the stability of superconducting YBa2Cu3O7−x phase. J Mater Sci: Mater Electron 1, 20–24 (1990). https://doi.org/10.1007/BF00716011

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00716011

Keywords

Search

Navigation