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Effect of Sulfur Surface Structure on Nucleation of Oxide Seed Layers on Textured Metals for Coated Conductor Applications

Published online by Cambridge University Press:  18 March 2011

C. Cantoni ,
D. K. Christen ,
A. Goyal ,
L. Heatherly ,
G. W. Ownby ,
D. M. Zehner ,
D. P. Norton ,
C. M. Rouleau  and
H. M. Christen
C. Cantoni
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
D. K. Christen
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
A. Goyal
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
L. Heatherly
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
G. W. Ownby
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
D. M. Zehner
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
D. P. Norton
Affiliation:
University of Florida, Department of Materials Science and Engineering, Gainesville, FL 32611
C. M. Rouleau
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
H. M. Christen
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
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Abstract

We present a study of the {100}<100> biaxially textured Ni (001) surface and oxide seed layer nucleation by in situ reflection high-energy electron diffraction and Auger electron spectroscopy. Our observations revealed the existence of a c(2×2) superstructure on the textured Ni surface due to segregation of sulfur contained in the bulk metal. The sulfur superstructure promotes the epitaxial (002) nucleation of seed layers such as Y2O3-stabilized ZrO2 (YSZ) and CeO2 on the metal and optimizes the biaxial texture necessary for high Jc superconductors on RABiTS.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 689: Symposium E – Materials for High-Temperature Superconductor Technologies , 2001 , E9.8
Copyright
Copyright © Materials Research Society 2002

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References

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