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Superconducting and Mechanical Properties of YBa2Cu3O7−x / Silver Granular Solids

Published online by Cambridge University Press:  28 February 2011

H. K. Niculescu
Affiliation:
Florida A & M University/Florida State University, College of Engineering, Tallahassee, FL 32316-2175
P. J. Gielisse
Affiliation:
Florida A & M University/Florida State University, College of Engineering, Tallahassee, FL 32316-2175
Y. S. Hascicek
Affiliation:
Florida State University, Department of Physics, Tallahassee, FL 32306
L. R. Testardi
Affiliation:
Florida State University, Department of Physics, Tallahassee, FL 32306
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Abstract

In this paper an experimental study of YBa2Cu3O7−x/silver composites is presented and the relationship between microstructure, superconducting and mechanical properties is discussed. Silver contents ranging from 0 to 17 vol% fell all below the percolation treshold. X-ray and Wavelength Dispersive Spectrometry analyses indicate that Ag remains in a free state, and is located mainly at the grain boundaries. A tenfold increase in J c. and a more than twofold increase in strength are the benefits of the improved microstructure of silver composites. The T c remains unaffected.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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