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MOD oxide buffer layers on metallic substrates for YBCO coated conductors

Published online by Cambridge University Press:  07 November 2013

A. Augieri,
M.R. Mancini,
A. Vannozzi,
A. A. Angrisani,
F. Fabbri,
F. Rizzo,
A. Mancini,
A. Rufoloni,
V. Galluzzi and
G. Celentano
...Show all authors
A. Augieri
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
M.R. Mancini
Affiliation:
ENEA - Materials Technology Department, Via anguillarese 301, 00123 S.Maria di Galeria (Rome), Italy
A. Vannozzi
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
A. A. Angrisani
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
F. Fabbri
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
F. Rizzo
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
A. Mancini
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
A. Rufoloni
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
V. Galluzzi
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
G. Celentano
Affiliation:
ENEA - Superconductivity Laboratory, Via Enrico Fermi 45, 00044 Frascati (Rome), Italy
G. Sotgiu
Affiliation:
Università Roma Tre - Electrochemical department, Via della Vasca Navale 84, 00146 Rome, Italy
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Abstract

We present a detailed study carried out on oxide buffer layers grown by Metal-Organic Decomposition (MOD) on metallic substrates for YBa2Cu3O7-x (YBCO) coated conductor applications. Precursor solutions have been made starting from acetates or pentanedionates and characterized by means of Differential Scanning Calorimetry (DSC) and Thermogravimetric (TG) analyses coupled with Fourier Transform Infra-Red spectroscopy (FT-IR). Thin buffer layers have been grown by spin-coating on Ni-5at.%W substrates. X-ray diffraction spectra (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) have been employed in order to optimize buffer layers in terms of film microstructure and surface quality, with the final aims of producing a suitable template for YBCO growth. It will be shown that the optimization of the recrystallization process can lead to high quality buffer layer allowing the growth of YBCO films showing good superconductive properties.

Keywords

metalorganic depositionthin filmsuperconducting

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References

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