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Synthesis of Superconducting Powders by Freeze-Drying*

Published online by Cambridge University Press:  25 February 2011

Sylvia M. Johnson
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
Michael I. Gusman
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
Donald L. Hildenbrand
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025
C. B. Eom
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305
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Abstract

The freeze-drying method of synthesizing powders of the superconducting oxide YBa2Cu3O7-δ is described. This process produces homogeneous, submicron powders of high purity. The effects of salt selection, solution concentration and pH on the process are described. Some evaluation of the sintering behavior and the effects on critical current density are included.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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Footnotes

*

Research sponsored by Electric Power Research Institute.

References

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