Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T11:59:10.233Z Has data issue: false hasContentIssue false
  • English
  • Français

Biaxial alignment of high-Tc superconductor polycrystals VIII: Phi-circle scan analysis of EuBa2Cu3O7−δ (Eu-123)

Published online by Cambridge University Press:  31 January 2011

Sheng-Qi Wang ,
Roberta A. Bigelow ,
Jian-Zhong Zhang ,
Carlos Bonetto ,
Bala Maheswaran ,
Robert S. Markiewicz ,
Mary G. Williams  and
Bill C. Giessen
Sheng-Qi Wang
Affiliation:
Department of Chemistry and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Roberta A. Bigelow
Affiliation:
Department of Physics and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Jian-Zhong Zhang
Affiliation:
Department of Physics and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Carlos Bonetto
Affiliation:
Department of Physics and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Bala Maheswaran
Affiliation:
Department of Physics and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Robert S. Markiewicz
Affiliation:
Department of Physics and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Mary G. Williams
Affiliation:
Department of Mechanical Engineering, Northeastern University, Boston, Massachusetts 02115
Bill C. Giessen
Affiliation:
Departments of Chemistry, Mechanical Engineering, and Barnett Institute, Northeastern University, Boston, Massachusetts 02115
Get access

Abstract

To reduce grain boundary weak links due to large-angle grain orientation mismatch, bulk (thick film) EuBa2Cu3O7−δ high-Tc superconductor specimens were biaxially aligned by a mechanical force such that their [001] axes were perpendicular to the specimen surfaces and by a magnetic force so as to orient their [010] axes to lie parallel to the magnetic field direction in the specimen plane. We describe here the characterization of such EuBa2Cu3O7−δ thick films by φ-circle XRD scans of (013) reflections, demonstrating a high degree (33%) of c-axis alignment with FWHM of <5° and approximately Gaussian distributions of a, b-axis alignment with a FWHM of 47°. The formation of “granular single crystals”, toward which this work is a further advance, can be seen as establishing a new paradigm in ceramics science.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 5 , May 1996 , pp. 1108 - 1113
Copyright
Copyright © Materials Research Society 1996

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.Mannhart, J. and Tsuei, C. C., Z. Phys. B77, 53 (1989).CrossRefGoogle Scholar
2.Haldar, P. and Motowidlo, L., JOM, October, 54 (1992).CrossRefGoogle Scholar
3.Chen, K., Maheswaran, B., Liu, Y. P., Giessen, B. C., Chan, C., and Markiewicz, R. S., Appl. Phys. Lett. 55, 289 (1989).CrossRefGoogle Scholar
4.Tkaczyk, J. E. and Lay, K. W., J. Mater. Res. 5, 1368 (1990).CrossRefGoogle Scholar
5.Dimos, D., Chaudhari, P., Mannhart, J., and Goues, F. K., Phys. Rev. Lett. 61, 219 (1988).CrossRefGoogle Scholar
6.Giessen, B. C., Markiewicz, R. S., and Chen, F., U.S. Patent No. 5 114 905 (1992).Google Scholar
7.Hidalgo, R., Zhang, X-Y., Wang, S-Q., Marchev, K., Zhang, B., Zhang, J-Z., Chen, F., Markiewicz, R. S., and Giessen, B. C., in High Temperature Superconductors III, edited by Whang, S., Das Gupta, A., and Collings, E. (TMS, Warrendale, PA, 1991), p. 89.Google Scholar
8.Zhang, B-S., Chen, F., Hidalgo, R., Wang, S-Q., Zhang, X-Y., Zhang, J-Z., Markiewicz, R. S., Giessen, B. C., and Lu, Y-Z., Jpn. J. Appl. Phys. 30, L1096 (1991).Google Scholar
9.Zhang, X-Y., Wang, S-Q., Zhang, J-Z., Zhang, B-S., Hidalgo, R., Markiewicz, R. S., and Giessen, B. C., Mater. Lett. 14, 193 (1992).Google Scholar
10.Zhang, J-Z., Zhang, X-Y., Wang, S-Q., Zhang, B-S., Markiewicz, R.S., and Giessen, B. C., in Synthesis and Processing of Ceramics: Scientific Issues, edited by Rhine, W. E., Shaw, T. M., Gottschall, R. J., and Chen, Y. (Mater. Res. Soc. Symp. Proc. 249, Pittsburgh, PA, 1992), p. 289.Google Scholar
11.Hidalgo, R., Zhang, X-Y., Wang, S-Q., Zhang, B., Zhang, J-Z., Chen, F., Finn, C., Markiewicz, R. S., and Giessen, B. C., in Synthesis and Processing of Ceramics: Scientific Issues, edited by Rhine, W. E., Shaw, T. M., Gottschall, R. J., and Chen, Y. (Mater. Res. Soc. Symp. Proc. 249, Pittsburgh, PA, 1992), p. 293.Google Scholar
12.Wang, S-Q., Zhang, J-Z., Bonetto, C., Maheswaran, B., Williams, M. G., Weber, I., Markiewicz, R. S., and Giessen, B. C., in Applied Superconductivity, Proceedings of the Seventh NYSIS Conference on Superconductivity and Applications, edited by Naughton, M. (Elsevier Science Limited, Amsterdam, 1995), Appl. Supercond. 3, 27 (1995).Google Scholar
13.Chen, F., Ph. D. Thesis, Department of Chemistry, Northeastern University, Boston, MA (1992).Google Scholar
14.Iijima, Y., Onabe, K., Futaki, N., Tanabhe, N., Sadakata, N., Kohno, O., and Ikeno, Y., IEEE Trans. Appl. Supercon. 3, 1510 (1993).CrossRefGoogle Scholar
15.Peterson, P. E., NY Times, 19 April, 1995, p. B10.Google Scholar