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YBa2 Cu(3-x)CoxOy- A Substrate Material for YBCO Superconductors

Published online by Cambridge University Press:  26 February 2011

J. D. Vienna ,
U. Balachandran ,
W. Cermignani ,
R. B. Poeppel  and
J. A. Taylor
J. D. Vienna
Affiliation:
Materials and Components Technology Division, Argonne National Laboratory. Argonne. IL 60439, USA New York State College of Ceramics, Alfred University, Alfred. NY 14802, USA
U. Balachandran
Affiliation:
Materials and Components Technology Division, Argonne National Laboratory. Argonne. IL 60439, USA
W. Cermignani
Affiliation:
New York State College of Ceramics, Alfred University, Alfred. NY 14802, USA
R. B. Poeppel
Affiliation:
Materials and Components Technology Division, Argonne National Laboratory. Argonne. IL 60439, USA
J. A. Taylor
Affiliation:
New York State College of Ceramics, Alfred University, Alfred. NY 14802, USA
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Abstract

The physical properties of the ceramic YBa2Cu(3-x)CoxOy have been investigated in order to evaluate its usefulness as a substrate material for YBCO superconductors. YBa2Cu(3-x)CoxOy has been found to be thermally and chemically compatible with 123 and displays adequate electrical properties for a substrate material. A material with the nominal composition of YBa2Cu2.2CO0.8O7 was investigated, extensively. The mechanical properties of this material were found to be poor, e.g., tensile strength was only 60 MPa. A semiconductor-like behavior was observed with a room-temperature resistivity of 70 mμ.cm and a resistivity equal to 4 × 106 mn.cm at 77K. [ Key words: YBa2Cu3Oy, cobalt substitution, substrate, electrical properties, thermal properties, processing]

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 437
Copyright
Copyright © Materials Research Society 1992

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References

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