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Control of YBa2Cu3Oy Sol-Gel Solution Structure by Chemical Modification of Organic Acid and its Effects

Published online by Cambridge University Press:  21 February 2011

Haixing Zheng  and
J. D. Mackenzie
Haixing Zheng
Affiliation:
Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, CA 90024
J. D. Mackenzie
Affiliation:
Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, CA 90024
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Extract

2-ethylhexanoic acid (2EHA) has been applied to control the YBa2Cu3O7−x sol-gel solution. The experimental results prove that 2EHA functions as a sol-gel solution structure controlling and precipitation-prevention agent. The structure of the solution can be one, two or three dimensions of the network by using different concentration of 2EHA to modify the metal alkoxides. With decreasing 2EHA concentration, the homogeneity is improved due to increasing the network connectivity. This results in: (1) ease of the formation of YBa2Cu3O7−x; (2) denser microstructure with fine grains; and (3) narrower but lower superconducting transition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 175: Symposium S – Multifunctional Materials , 1989 , 173
Copyright
Copyright © Materials Research Society 1990

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References

1. Haixing, Zheng. Chen, K.C. and Mackenzie, J.D., in Extended Abstract: High Temperature Superconductors II, edited by Capone, D.W., Butler, W.H., Batlogg, B. and Chu, C.W., (Materials Research Society, Pittsburg, 1988), EA–14, pp.93 Google Scholar
2. Mcgrath, J.E., Pullockaren, J.P., Riffle, J.S., Killic, S. and Elsbernd, C.S., Ultrastructure Processing of Advanced Ceramics, edited by Mackenzie, J.D. and Ulrich, D.R. (A Wiley- Interscience Publication, 1988), pp. 5 5Google Scholar
3. Mackenzie, J.D., J.Non-Cryst.Solids, 48, 1(1982)Google Scholar
4. Klein, L.C. (ed.), Sol-Gel Technology for Thin Films, Fibers, Preforms, Electrons, and Specialty Shapes, (Noyes Publications, 1988)Google Scholar
5. Haixing, Zheng. Colby, M.W. and Mackenzie, J.D., in Better Ceramics Through Chemistry III, edited by Brinker, C.J., Clark, D.E. and Ulrich, D.R., (Materials Research Society, Pittsburg, 1988)Google Scholar
6. Barbous, P., Presentation in 90th Annual American Ceramic Society Meeting, May, 1988, Cincinnati, (unpublished work)Google Scholar