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Synthesis of Superconducting Perovskite by Coprecipitation of Hydroxides

Published online by Cambridge University Press:  28 February 2011

I. Valente-Campion ,
P. Barboux ,
L. Mazerolles ,
D. Michel ,
R. Morineau  and
J. Livage
I. Valente-Campion
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
P. Barboux
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
L. Mazerolles
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
D. Michel
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
R. Morineau
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
J. Livage
Affiliation:
Chimie de la Matiére Condensde, Université P. et M. Curie, 4 Place Jussieu 75005 Paris, France
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Abstract

The synthesis of the superconducting perovskite YBa2Cu3O7 using hydroxides as starting precursors has been investigated. Hydroxides are homogeneously coprecipitated from mixed alcohol-water solutions without loss of barium. Upon heat-treatment the perovskite phase rapidly forms around 750°C. However, it remains tetragonal even after long time annealing in oxygen ambient. This is related to an unusual microtwinning in the (ac) plane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 893
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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