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Improved Magnetization for YBa2Cu3O7-δ Annealed in Oxygen Above 1000°C

Published online by Cambridge University Press:  28 February 2011

E. L. Venturini ,
D. S. Ginley ,
R. J. Baughman ,
B. Morosin  and
J. F. Kwak
E. L. Venturini
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
D. S. Ginley
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
R. J. Baughman
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
B. Morosin
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
J. F. Kwak
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
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Abstract

Air sintering and subsequent oxygen annealing at high temperatures are integral to the production of ceramic superconducting YBa2Cu3O7-δ. We present results directed toward optimizing the temperature for these two process steps, using static magnetization to determine the intragranular properties. Surprisingly, pure oxygen stabilizes the material against decomposition at temperatures near the melting point, allowing the production of significantly higher quality single phase material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 639
Copyright
Copyright © Materials Research Society 1988

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References

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