Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-27T03:51:30.807Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth of TlBa2Ca2Cu3O9−y superconducting films with local biaxial alignment extending up to 5 mm on Ag substrates using a spray-pyrolysis technique

Published online by Cambridge University Press:  31 January 2011

M. Paranthaman ,
F. A. List ,
A. Goyal ,
E. D. Specht ,
C. E. Vallet ,
D. M. Kroeger  and
D. K. Christen
M. Paranthaman
Affiliation:
Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
F. A. List
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
A. Goyal
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
E. D. Specht
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
C. E. Vallet
Affiliation:
Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
D. M. Kroeger
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
D. K. Christen
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Get access

Abstract

We report on the superconducting properties of TlBa2Ca2Cu3O9−y (Tl-1223) thick films grown on smooth and rough Ag substrates. Thallium-free precursor films of the type Ba2Ca2Cu3Ag0.37O7 were deposited on Ag substrates using a spray-pyrolysis technique followed by post-thallination in a two-zone furnace. X-ray diffraction (XRD) results showed the presence of c-axis aligned Tl-1223 films and some degree of local in-plane texture (often referred to as a colony microstructure). The microstructure of the Ag surface dictates the growth behavior of Tl-1223 films. The transport critical-current densities (Jc) for Tl-1223 films grown on smooth and rough Ag substrates were ∼ 65,000 A/cm2 and ˜ 37,000 A/cm2, respectively, at 77 K and zero field. The films grown on smooth Ag substrates were strongly linked and had good in-field properties with a Jc value of ∼104 A/cm2 at 77 K and 0.5 T.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 3 , March 1997 , pp. 619 - 623
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.DeLuca, J. A., Karas, P. L., Tkaczyk, J. E., Bednarczyk, P. J., Garbauskas, M. F., Briant, C. L., and Sorensen, D. B., Physica C 205, 21 (1993).CrossRefGoogle Scholar
2.DeLuca, J. A., Karas, P. L., Briant, C. L., Tkaczyk, J. E., and Goyal, A., in Processing of Long Lengths of Superconductors, edited by Balachandran, U., Collings, E. W., and Goyal, A. (The Minerals, Metals & Materials Society, Warrendale, PA, 1994), p. 231.Google Scholar
3.Wu, X. D., Foltyn, S.R., Arendt, P. N., Blumenthal, W. R., Campbell, I. H., Cotton, J. D., Coulter, J. Y., Hults, W. L., Maley, M. P., Safar, H. F., and Smith, J. L., Appl. Phys. Lett. 67, 2397 (1995).CrossRefGoogle Scholar
4.Goyal, A., Norton, D. P., Budai, J., Paranthaman, M., Specht, E. D., Kroeger, D. M., Christen, D. K., He, Q., Saffian, B., List, F. A., Lee, D. F., Martin, P. M., Klabunde, C. E., Hatfield, E., and Sikka, V. K., Appl. Phys. Lett. 69, 1795 (1996).CrossRefGoogle Scholar
5.Ren, Z. F., Wang, C. A., and Wang, J. H., Appl. Phys. Lett. 65, 237 (1994).CrossRefGoogle Scholar
6.Specht, E. D., Goyal, A., Kroeger, D. M., DeLuca, J. A., Tkaczyk, J. E., Briant, C. L., and Sutliff, J. A., Physica C 226, 76 (1994).CrossRefGoogle Scholar
7.Goyal, A., Specht, E. D., Kroeger, D. M., Tkaczyk, J. E., Briant, C. L., and DeLuca, J. A., Appl. Phys. Lett. 67, 2563 (1995).CrossRefGoogle Scholar
8.Kroeger, D. M. and Goyal, A., J. Metals 46, 14 (1994), and references therein.Google Scholar