Hostname: page-component-6bf8c574d5-mggfc Total loading time: 0 Render date: 2025-02-19T04:03:32.878Z Has data issue: false hasContentIssue false
  • English
  • Français

Physico-Chemical Characterization of the Coprecipitated Y-Ba-Cu-O Fine Powders

Published online by Cambridge University Press:  25 February 2011

H. M. Jang ,
K. W. Moon ,
J. H. Moon ,
H. S. Shin ,
S. J. Kwon  and
S. Baik
H. M. Jang
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
K. W. Moon
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
J. H. Moon
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
H. S. Shin
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
S. J. Kwon
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
S. Baik
Affiliation:
Department of Materials Science and Metallurgy, Pohang Institute of Science and Technology (POSTECH), Pohang, Republic of, Korea
Get access

Abstract

Y-Ba-Cu-o fine powders were prepared by coprecipitating in the oxalate form from metal nitrates solution. The stoichiometry of metals in the precipitate was adjusted by systematic change of copper nitrate (or yttrium nitrate) concentration for a fixed concentration of barium nitrate in the ruactant. Approximately one micron size powders, with a uniform size distribution, were obtained by this new approach. The optimum condition for calcination and sintering was studied by thermal gravimetric analysis(TGA), X-ray powder diffraction(XRD) and scanning electron microscopy(SEM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 407
Copyright
Copyright © Materials Research Society 1988

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

Kaneko, K., Ihara, H., Hirabayashi, M., Terada, N. and Senzaki, K., Jpn. J. Appl. Phys. Vol. 26, No. 5, L734 (1987).Google Scholar
2. Cima, M. J. and Rhine, W. E., Adv. Ceramics Mat., Special Issue - Ceramic Superconductors, Vol. 2, 329 (1987).Google Scholar
3. Dunn, B., Chu, C. T., Zhow, L. W., Cooper, J. R. and Grunder, G., Adv. Ceramic Mat., Special Issue - Ceramic Superconductors, Vol. 2, 343 (1987).Google Scholar
4. Behrman, E. C. et al., Adv. Ceramic Mat., Special Issue -Ceramic Superconductors, Vol. 2, 539 (1987).Google Scholar
5. Fujiki, M., Hikita, M. and Sukegawa, K., Jpn. J. Appl. Phys. Vol. 27, No. 7, L1159 (1987).Google Scholar
6. Johnson, S. M., Gusman, M. T., Rowcliffe, D. J., Geballe, T. H. and Sun, J. Z., Adv. Ceramics Mat., Special Issue - Ceramic Superconductors, Vol. 2, 337 (1987).Google Scholar
7. Pouchert, C. J., The Aldrich Library of Infrared Spectra, 3rd ed. (Aldrich Chemical Co., Inc., 1981), O–875.Google Scholar
8. Pavia, D. L., Lampman, G. M. and Kriz, G. S. Jr, Introduction to Spectroscopy, (W. B. Saunders Co., Philadelphia, 1979), 42 p. 68.Google Scholar
9. McClune, W. F., Inorganic Phases - Powder Diffraction File, (JCPDS International Center For Diffraction Data, Pennsylvania, 1981).Google Scholar
10. Steinfink, H., Swinnea, J. C., Sui, Z. T., Hsu, H. M. and Goodedough, J. B., J. Am. Chem. Soc. Vol. 109, No. 11, 3348 (1987).Google Scholar
11. Weast, R. C., CRC Handbook of Chemistry and Physics, 67th ed. (CRC Press, Inc., 1986), D–54.Google Scholar