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Characterization Of Amorphous Gel To Superconducting Oxide Conversion For Sol-Gel Produced Y1Ba2Cu3O7-x.

Published online by Cambridge University Press:  28 February 2011

G.A. Moore ,
D. Kenzer ,
M. Teepe  and
G. Kordas
G.A. Moore
Affiliation:
Department of Material Science and Engineering, Ceramics Division, Materials Research Laboratory, and Science and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL 61801
D. Kenzer
Affiliation:
Department of Material Science and Engineering, Ceramics Division, Materials Research Laboratory, and Science and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL 61801
M. Teepe
Affiliation:
Department of Material Science and Engineering, Ceramics Division, Materials Research Laboratory, and Science and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL 61801
G. Kordas
Affiliation:
Department of Material Science and Engineering, Ceramics Division, Materials Research Laboratory, and Science and Technology Center for Superconductivity, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL 61801
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Abstract

Alkoxide sol-gel processing of Y1Ba2Cu3O7-x was performed using copper(II) ethoxide, barium methoxyethoxide, and yttrium methoxyethoxide precursors in a methoxyethanol/methy ethyl ketone/toluene solvent system. In situ neutron diffraction experiments were performed on individual precursors and mixed component gels during heat treatment. Phase development and consumption was observed for both the calcination and annealing segments of the heat treatment. Formation of Y1Ba2Cu3O7-x was observed as early as 700°C. CuO, Cu2O, BaCuO, YCu2O5, BaCO3, BaCO4, and YlBa2Cu3O7-x were observed during the conversion/ consolidation reactions to 850°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 953
Copyright
Copyright © Materials Research Society 1990

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References

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