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Annealing Effects on Properties of High Tc YBa2Cu3O7−x Ceramics

Published online by Cambridge University Press:  28 February 2011

Shin-Guang Shyu ,
R. F. Louh  and
R. C. Buchanan
Shin-Guang Shyu
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801–2995
R. F. Louh
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801–2995
R. C. Buchanan
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801–2995
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Abstract

High Tc superconducting YBa2Cu3O7−x ceramics were prepared from the appropriate oxide constituents and heat treated under various conditions to determine the effects of annealing on superconducting properties. Sintered samples (900–920°C) were air cooled at 5°/min followed by annealing in oxygen or air at 500°C/12 hr. Resistance measurements, SQUID, SEM, and x-ray analysis were used to characterize the samples, which were of 38% porosity. Results showed all samples to be superconducting with TC(O) 84K. Superconducting properties of the air and oxygen annealed samples were equivalent but showed lower overall resistance and 30% higher superconducting phase (30 to 70 K) compared to the air cooled samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 655
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Bednorz, J. G. and Muller, K. A. Zeltschriftfur physlk B, 64, 189–193 (1986).Google Scholar
2. Wu, M. K., Ashburn, J. R., Torng, C. J., Hor, P. H., Meng, R. L., Gao, L., Huang, Z. J., Wang, Q. and Chu, C. W., Physical Review Letters, 58, 908 (1987)Google Scholar
3. Blendell, J. E., Chiang, C. K., Cranmer, D. C., Freiman, S. W., Fuller, E. R. Jr, Drescher-Krasicka, E., Johnson, Ward L., Ledbetter, H. M., Bennett, L. H., Swartzendraber, L. J., Marinenko, R. B., Myklebust, R. L., Bright, D. S. and Newbury, D. E., Advanced Ceramic Materials 2(3B) 513–529 (1987).Google Scholar
4. Jayaram, B., Agarwal, S. K., Gupta, A. and Narlikar, A. V., Solid State Communications 63(8) 713–716 (1987).Google Scholar
5. Tarascón, J. M., Mckinnon, W. R., Greene, L. H., Hull, G. W., Bagley, B. G. and Voge, E. M., Advanced Ceramics 2(3B), 498–505 (1987).Google Scholar
6. Engler, E. M.; Lee, V. Y.; Nazzal, A. I.; Beyers, R. B; Lim, G; Grant, P. M.; Parking, S. S. P.; Ramirez, M. L.; Vazquez, J. E.; and Savoy, R. J., J. Amer. Chem. Soc., 109, 2848, (1987).Google Scholar
7. Song, S. N., Hwu, S. -J., Du, T. L., Poepelmeier, K. R., Mason, T. O. and Ketterson, J. H. B., Advanced Ceramics 2 (3B) 480–491 (1987).Google Scholar
8. Beyers, R., Lim, G., Engler, E. M., Lee, V. Y., Ramirex, M. L., Savy, R. J., Jacomity, R. D., Shaw, T. M., La Placa, S., Boehme, R., Tsuei, C. C., Park, Sung I., Shaper, M. W., Gallagher, W. J., and Chan-drashekhar, G. V., Submitted to Applied Physics Letters.(Preprint)Google Scholar
9. Wong-Ng, Winnie and Lawrence, P. Cook. Advanced Ceramic materials 2(3B), 624–631 (1987).Google Scholar
10. Edward, M. Engler Preprint.(Apply Phys Letters)Google Scholar
11. Keller, S. W., Leary, K. J., Stacy, A. M. and Michaels, J. W., Materials Letters 5(9), 357–359 (1987).Google Scholar
12. Frase, K. G., Liniger, E. G. and Clarke, P. R., Advanced Ceramic Materials 2(3B), 698–700 (1987).Google Scholar