Hostname: page-component-7c8c6479df-hgkh8 Total loading time: 0 Render date: 2024-03-29T07:10:02.026Z Has data issue: false hasContentIssue false

Fabrication of Large Single-grain Y–Ba–Cu–O Through Infiltration and Seeded Growth Processing

Published online by Cambridge University Press:  31 January 2011

N. Hari Babu
Affiliation:
IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
M. Kambara
Affiliation:
IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
P. J. Smith
Affiliation:
IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
D. A. Cardwell
Affiliation:
IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
Y. Shi
Affiliation:
IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom
Get access

Abstract

Large, single-grain Y–Ba–Cu–O (YBCO) was fabricated via the infiltration of Ba–Cu–O liquid into a precursor body composed of solid, porous Y2BaCuO5 (Y-211) and observed to trap a magnetic field of 0.15 T at 77 K. In this process a NdBCO seed crystal was used to promote heterogeneous nucleation, which allows the fabrication of single-grain YBCO containing a uniform and very fine distribution of Y-211 inclusions in the YBa2Cu3O7−δ(Y-123) matrix without the addition of Pt. These superior microstructural features and significant field trapping ability compared with samples processed by conventional top-seeded melt growth suggest this technique could be a practical alternative for processing large, single-grain superconductors for engineering applications.

Type
Articles
Copyright
Copyright © Materials Research Society 2000

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

REFERENCES

1.Campbell, A.M. and Cardwell, D.A., Cryogenics 37, 567 (1997).CrossRefGoogle Scholar
2.Cardwell, D.A., J. Mater. Sci. Eng. B B53, 1 (1998).CrossRefGoogle Scholar
3.Murakami, M., Supercond. Sci. Technol. 5, 185 (1992).CrossRefGoogle Scholar
4.Izumi, T., Nakamura, Y., Sung, T.H., and Shiohara, Y., J. Mater. Res. 7, 801 (1992).CrossRefGoogle Scholar
5.Kim, C-J., Kim, K-B., Hong, G-W., Won, D-Y., Kim, B-H., Kim, C-T., Moon, H-C., and Suhr, D-S., J. Mater. Res. 7, 2349 (1992).CrossRefGoogle Scholar
6.Varanasi, C., McGinn, P.J., Pavate, V., and Kvam, E.P., Physica C 221, 46 (1994).CrossRefGoogle Scholar
7.Schatzle, P., Krabbes, G., Stover, G., Fuchs, G., and Schlafer, D., Supercond. Sci. Technol. 12, 69 (1999).CrossRefGoogle Scholar
8.Jeong, I.K., Kim, D., Park, Y.K., Lee, K.W., and Park, J.C., Physica C 217, 376 (1993).CrossRefGoogle Scholar
9.Sudhakar Reddy, E. and Rajasekharan, T., J. Mater. Res. 13, 2472 (1998).CrossRefGoogle Scholar
10.Hari Babu, N., Rajasekharan, T., Menon, L., and Malik, S.K., J. Am. Ceram. Soc. 82, 2978 (1999).CrossRefGoogle Scholar
11.Mortensen, A., Mater. Sci. Eng. A 135, 1 (1991).CrossRefGoogle Scholar
12.Lo, W., Cardwell, D.A., Dung, S-L., and Barter, R.G., J. Mater. Sci. 30, 3995 (1995).CrossRefGoogle Scholar
13.Mironova, M., Lee, D.F., and Salama, K., Physica C 211, 188 (1993).CrossRefGoogle Scholar
14.Lo, W., Hari Babu, N., Cardwell, D.A., Shi, Y.H., and Astill, D.M., J. Mater. Res. 15, 33 (2000).CrossRefGoogle Scholar
15.Chow, J.C.L, Leung, H-T., Lo, W., and Cardwell, D.A., J. Mater. Sci. 33, 1083 (1998).CrossRefGoogle Scholar