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Influence of Y2BaCuO5 particles on the growth morphology of peritectically solidified YBa2Cu3O7−x

Published online by Cambridge University Press:  03 March 2011

G.J. Schmitz ,
J. Laakmann ,
Ch. Wolters ,
S. Rex ,
W. Gawalek ,
T. Habisreuther ,
G. Bruchlos  and
P. Görnert
G.J. Schmitz
Affiliation:
ACCESS e.V., D-52056 Aachen, Germany
J. Laakmann
Affiliation:
ACCESS e.V., D-52056 Aachen, Germany
Ch. Wolters
Affiliation:
ACCESS e.V., D-52056 Aachen, Germany
S. Rex
Affiliation:
ACCESS e.V., D-52056 Aachen, Germany
W. Gawalek
Affiliation:
IPHT, D-07743 Jena, Germany
T. Habisreuther
Affiliation:
IPHT, D-07743 Jena, Germany
G. Bruchlos
Affiliation:
IPHT, D-07743 Jena, Germany
P. Görnert
Affiliation:
IPHT, D-07743 Jena, Germany
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Abstract

Modifications of a recent model by Izumi et al.1 on diffusion controlled growth of YBa2Cu3O7−x (123) superconductors are proposed, taking into account especially the engulfment process of the Y2BaCuO5 (211) particles into the solidifying 123 interface. The proposed modifications are evidenced by experimental results and applied to explain microstructural features of the 123 superconducting material. In particular, the 1:1 correlation between 123 platelet thickness (planar defect spacing) and 211 particle size as described by Jin et al.2 is explained by an observed bridge growth resulting in a zipper-like mechanism. By this mechanism the platelets grow together in an oriented way leading to a quasi single crystalline material.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 11 , November 1993 , pp. 2774 - 2779
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1Izumi, T., Nakamura, Y., and Shiohara, Y., J. Mater. Res. 7, 1621 (1992).CrossRefGoogle Scholar
2Jin, S., Kammlott, G. W., Tiefel, T. H., Kodas, T. T., Ward, T. L., and Kroeger, D. M., Physica C 181, 57 (1991).CrossRefGoogle Scholar
3John, D.H. St., Acta Metall. Mater. 38 (4), 631 (1990).Google Scholar
4Kerr, H. W., Cisse, J., and Boiling, G. F., Acta Metall. 22, 677 (1974).CrossRefGoogle Scholar
5John, D. H. St. and Hogan, L. M., Acta Metall. 25, 77 (1977).CrossRefGoogle Scholar
6Bateman, Ch. A., unpublished.Google Scholar
7Gawalek, W., Schüppel, W., Hergt, R., Andra, W., Fischer, K., and Görnert, P., Physica C 185–189, 2261 (1991).CrossRefGoogle Scholar
8Gawalek, W., Habisreuther, T., Fischer, K., Bruchlos, G., and Görnert, P., Cryogenics (in press).Google Scholar
9Schmitz, G. J., Weifi, H., and Wolters, Ch., J. Less-Comm. Met. 164 & 165, 1413 (1990).CrossRefGoogle Scholar
10Schmitz, G. J., VDI Fortschrittbericte, Reihe 5, Nr 229, VDI Verlag, Diisseldorf, Germany (1991).Google Scholar
11Gawalek, W., Habisreuther, T., Fischer, K., Bruchlos, G., and Görnert, P., Proc. Int. Workshop on Superconductivity, Honolulu, Hawaii, June 1992.Google Scholar
12Murakami, M. and Koyama, N., in High Temperature Superconductors: Relationships between Properties, Structure, and Solid-State Chemistry, edited by Jorgensen, J. R., Kitazawa, K., Tarascon, J. M., Thompson, M. S., and Torrance, J. B. (Mater. Res. Soc. Symp. Proc. 156, Pittsburgh, PA, 1989), p. 201.Google Scholar
13Salama, K., Selvamanickam, V., Gao, L., and Sun, K., Appl. Phys. Lett. 54, 2352 (1988).CrossRefGoogle Scholar
14Hillert, M., in Solidification and Casting of Metals (The Metals Society, 1977), p. 81.Google Scholar
15Alexander, K. B., Goyal, A., Kroeger, D. M., Selvamanickam, V., and Salama, K., Phys. Rev. B 45 (10), 5622 (1992).CrossRefGoogle Scholar
16Morita, M., Troilleux, I., Takehayashi, S., Kimura, H., Tanaka, M., Miyamoto, K., and Hashimoto, M., in Proc. Int. Workshop on Superconductivity, Honolulu, Hawaii, June 1992.Google Scholar
17Wolters, Ch., Schmitz, G. J., and Laakmann, J., unpublished.Google Scholar
18Cima, M. J., Flemings, M. C., Figueredo, A. M., Nakade, M., Ishii, H., Brody, H. D., and Haggerty, J. S., J. Appl. Phys. 72 (1), 179 (1992).CrossRefGoogle Scholar