Abstract
Since the discovery of high critical temperature superconducting oxides, an important factor potentially limiting their technological application has been the typically low value of the critical current density that they can carry. Here are presented the results of a transmission electron microscopy study of sintered YBa2Cu3O7−x aimed primarily at the characterization of those elements of the microstructure responsible for the poor current-carrying capacity in the superconducting state. The observations are further discussed in relation both to the flux pinning characteristics required and to the prospect for controlling the microstructure in order to optimize the properties of this material for technological development.
Similar content being viewed by others
References
J. J. Capponi, C. Chaillout, A. W. Hewat, P. Lejay, M. Marezio, N. Nguyen, B. Raveau, J. L. Soubeyroux, J. L. Tholence, and R. Tournier, Europhys. Lett. 3, 1301 (1987).
W. I. F. David, W. T. A. Harrison, J. M. F. Gunn, O. Moze, A. K. Soper, P. Day, J. D. Jorgensen, D. G. Hinks, M. A. Beno, L. Soderholm, D. W. Capone, I. K. Schuller, C. U. Segre, K. Zhang, and J. D. Grace, Nature 327, 310 (1987).
F. Beech, S. Maraglin, A. Santoro, R. S. Roth, submitted to Phys. Rev. Lett.
M. A. Beno, L. Soderholm, D. W. Capone, D. G. Hinks, J. D. Jorgensen, J. D. Grace, and I. K. Schuller, Appl. Phys. Lett. 51, 57 (1987).
N. F. Mott, Nature 372, 185 (1987).
P. W. Anderson and E. Abrahams, Nature 327, 363 (1987).
A. Ourmazd, J. A. Rentschler, J. C. H. Spence, M. O’Keefe, R. J. Graham, D. W. Johnson, and W. W. Rhodes, Nature 327, 308 (1987).
E. A. Hewat, M. Dupey, A. Bourret, J. J. Capponi, and M. Marezio, Nature 327, 400 (1987).
B. G. Hyde, J. G. Thompson, R. L. Withers, J. G. Fitzgerald, A. M. Stewart, D. J. M. Bevan, J. S. Anderson, J. Bitmead, and M. S. Paterson, Nature 327, 402 (1987).
R. J. Cava, B. Batlogg, R. B. von Dover, D. W. Murphy, S. A. Sunshine, T. Siegrist, J. P. Semeika, E. A. Reitman, S. Zahwak, and G. P. Espinosa, Phys. Rev. Lett. 58, 1676 (1987).
P. K. Gallagher, H. M. O’Bryan, S. A. Sunshine, and D. W. Murphy, Submitted to Mater. Res. Bull.
S. B. Newcomb, E. Metecalfe, and W. M. Stobbs, Philos. Trans. R. Soc. London A 319, 198 (1986).
N. W. Jepps, Ph.D. thesis, University of Cambridge, 1980.
H. Yoshino, N. Fukushima, H. Niu, S. Nakayama, Y. Yamada, and S. Muase, in the Proceedings of the European Materials Research Society, C22, Strasbourg, June 1987.
A. M. Campbell, P. P. Edwards, R. Jones, A. Hibbs, M. F. Ashby, B. A. Glowacki, and J. E. Evetts, in 1st European Workshop, High Tc Superconductors and Potential Applications, Genova, Italy, July 1987, p. 91.
M. Suenaga, A. Ghosh, J. Asano, R. L. Sabatini, and A. R. Moodenbaugh, in the Proceedings of the Materials Research Society, Anaheim, CA, April 1987, p. 247.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Camps, R.A., Evetts, J.E., Glowacki, B.A. et al. The role of boundaries in the superconducting properties of sintered YBa2Cu3O7−x. Journal of Materials Research 2, 750–756 (1987). https://doi.org/10.1557/JMR.1987.0750
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1987.0750