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YBa2Cu3O6+δ microcrystals by extraction of a nonstoichiometric melt

  • N. Pellerin (a1), M. Gervais (a1) and P. Odier (a1)

YBa2Cu3O6+δ microcrystals are synthesized by extraction of a nonstoichiometric melt similar to that employed for crystal growth of this compound. This method uses, first, initial compositions corresponding to the field YBa2Cu3O6+δ plus liquid, and second, the interaction properties of the flux with an appropriate substrate, i.e., Y2O3. Using other substrates like alumina produces 123 microcrystals, but embedded in the residual flux; in contrast yttrium oxide reacts with this one, and it is essential for its extraction. Choosing proper conditions makes it possible to obtain relatively pure YBa2Cu3O6+δ samples made of regular pellets (size: 10 to 20 μm thickness: 3 to 6 μm). The process is discussed using the phase diagram and the concept of dissolution-reprecipitation often involved in liquid phase sintering.

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1.Hor, P.H., Huang, Z.J., Gao, L., Meng, R.L., Xue, Y.Y., Chu, C.W., Jean, Y. C., and Farmer, J., Modern Phys. Lett. B 4 (11), 703 (1990).
2.Kuwabara, M. and Shimooka, H., Appl. Phys. Lett. 55 (26), 2781 (1989).
3.Smith, D.S., Suasmoro, S., Huger, M., and Gault, C., “Microcracking in Polycrystalline YBa2Cu3O7−x”, ICMC'90, Garmisch-Partenkirchen, RFA.
4.Smith, D. S., Suasmoro, S., and Gault, C., J. Eur. Ceram. Soc. 5, 81 (1989).
5.Dimos, D., Chaudhari, P., and Mannhart, J., Phys. Rev. B 41, 4038 (1990).
6.Babcock, S. E. and Larbalestier, D. C., Appl. Phys. Lett. 55 (4),393 (1989).
7.Heintz, J. M., Sanz, M., Marquestaut, E., Etourneau, J., and Bonnet, J. P., “Influence of BaCuO2 on the sintering and the properties of YBa2Cu3O7_δ based ceramics”, J. Am. Ceram. Soc. 74 (5), 998 (1991).
8.Pruss, N., Kraak, W., Miiller, H.U., Jacobi, A., Dwelk, H., and Herrmann, R., Phys. Status Solidi (a) 116, 793 (1989).
9.Wolf, Th., Goldacker, W., and Obst, B., J. Cryst. Growth 96, 1010 (1989).
10.Scheel, H. J., J. Less-Common Met. 151, 199 (1989).
11.Gervais, M., Odier, P., and Coutures, J. P., Mater. Sci. Eng. B8, 287 (1991).
12.Odier, P., Dubois, B., Gervais, M., and Douy, A., Mater. Res. Bull. XXIV, 11 (1989).
13.Roth, R. S., Davis, K. L., and Dennis, J. R., Adv. Ceram. Mater. 2 (3B), 303 (1987), special issue.
14.Aselage, T. and Keefer, K., J. Mater. Res. 3, 1279 (1988).
15.Lee, B-J. and Lee, D.N., J. Am. Ceram. Soc. 74 (1), 78 (1991).
16.Petzow, G., Kaysser, W. A., and Amtenbrink, M., in Science of Ceramics, edited by Hausner, H. (Deutsche Keramische Gesellschaft, Berlin, 1980), Vol. 10, pp. 269278.
17.Douy, A. and Odier, P., Mater. Res. Bull. XXIV, 1119 (1989).
18.Massiot, D., Simulation numérique de spectres, private communication.
19.Underwood, E. E., in Quantitative Microscopy, edted by de Hoff, R. T. (McGraw-Hill, New York, 1968), Chap. 4.
20.Dembinski, K., Gervais, M., Odier, P., and Coutures, J. P., J. Less-Common Met. 164&165, 177 (1990).
21.Clarke, D.R., Shaw, T.M., and Dimos, D., J. Am. Ceram. Soc. 72 (7), 1103 (1989).
22.Cheung, C. T. and Ruckenstein, E., J. Mater. Res. 4, 1 (1989).
23.Zhou, Ji-Ping, Sorrell, C. C., Bourdillon, A.J., and Dou, Shi-Xue, J. Am. Ceram. Soc. 73 (7), 2147 (1990).
24.Pellerin, N., Gervais, M., and Odier, P., to be published.
25.Lay, K.W. and Renlund, G.M., J. Am. Ceram. Soc. 73 (5), 1208 (1990).
26.Holtzberg, F. and Feild, C., Eur. J. Solid State Inorg. Chem. 27, 107 (1990).
27.Kingery, W. D., Bowen, H. K., and Uhlmann, D. R., Introduction to Ceramics, 2nd ed. (J. Wiley & Sons, New York, 1976).
28.Ayyub, P. and Multani, M. S., Mater. Lett. 10 (9,10), 431 (1991).
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Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
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