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Rheological Characterization of a Sol-Gel Process for the Preparation of High Tc Superconductors

Published online by Cambridge University Press:  21 February 2011

S. A. Khan ,
B. G. Bagley ,
P. Barboux  and
F. E. Torres
S. A. Khan
Affiliation:
Bellcore, 331 Newman Springs Road, Red Bank, NJ 07701
B. G. Bagley
Affiliation:
Bellcore, 331 Newman Springs Road, Red Bank, NJ 07701
P. Barboux
Affiliation:
Bellcore, 331 Newman Springs Road, Red Bank, NJ 07701 Universite P. et. M. Curie, 4 Place Jussieu, 75005 Paris
F. E. Torres
Affiliation:
Princeton University, Chemical Engineering Dept., Princeton, NJ 08540
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Abstract

Superconducting thick films of yttrium-based cuprates can be prepared using a sol-gel technique. Rheological measurements on the precursors are used to identify processing parameters that can lead to better film properties. Steady and dynamic experiments reveal a direct correlation between the properties of the precursor, the final product, and the “age” of the yttrium component used in the precursor. Measurements support a proposed mechanism relating the “age” of the yttrium to the other properties and help to establish a processing methodology to obtain effective superconducting properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 155: Symposium L – Processing Science of Advanced Ceramics , 1989 , 95
Copyright
Copyright © Materials Research Society 1989

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References

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