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Structural and Electrical Properties of Biaxially Textured YBa2Cu3O7-x Thin Films on Buffered Ni-based Alloy Substrates

Published online by Cambridge University Press:  18 March 2011

M. Li ,
B. Ma ,
Y. A. Jee ,
B. L. Fisher  and
U. Balachandran
M. Li
Affiliation:
Argonne National Laboratory, Argonne, IL 60439
B. Ma
Affiliation:
Argonne National Laboratory, Argonne, IL 60439
Y. A. Jee
Affiliation:
Argonne National Laboratory, Argonne, IL 60439
B. L. Fisher
Affiliation:
Argonne National Laboratory, Argonne, IL 60439
U. Balachandran
Affiliation:
Argonne National Laboratory, Argonne, IL 60439
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Abstract

Oxide high-Tc superconducting wires and tapes with high critical current density (Jc) are essential to future electrical power applications. Recently, YBa2Cu3O7−x (YBCO) thin films grown on Ni-based alloy tapes have attracted intense interest because of their promise for these applications. To achieve high Jc, buffer layers are necessary for fabricating biaxially aligned YBCO thin films. In our studies, yttria-stabilized zirconia (YSZ) layers were deposited on Ni- based alloy substrates by ion-beam assisted deposition, and CeO2 buffer layers were subsequently deposited on the YSZ layer by pulsed laser deposition (PLD) or electron beam evaporation. In addition, MgO layers were deposited on Ni-based alloy substrates by inclined substrate deposition. Finally, biaxially textured YBCO thin films were deposited on these buffered metallic substrates by PLD under optimized conditions. The orientation and in-plane textures of YBCO and the buffer layers were characterized by X-ray diffraction Ø/2Øscans, ø- scans, and pole figure analysis. The superconductive transition features were examined by measuring inductive Tc and transport Jc.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 659: Symposium II – High-Temperature Superconductors-Crystal Chemistry, Processing & Properties , 2000 , II10.2
Copyright
Copyright © Materials Research Society 2001

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References

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