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Characterisation of the sol-gel process in the superconducting NdBa2Cu3O7-y system

Bart Schoofs, David Van de Vyver, Pieter Vermeir UGent, Jo Schaubroeck UGent, Serge Hoste UGent, Gerrit Herman UGent and Isabel Van Driessche UGent (2007) JOURNAL OF MATERIALS CHEMISTRY. 17(17). p.1714-1724
abstract
The objective of this paper is to obtain a better insight into the sol - gel mechanism of water-based precursors for the development of thin NdBa2Cu3O7-y (NBCO) superconducting films. The influence of metal complexation behaviour on the formation of transparent and homogenous gels after the combination of different metal salts and ligands has been studied for several metal salts (Cu2+, Nd3+ and Ba2+). Two inorganic aqueous sol - gel precursors have been studied: a metal nitrate - citric acid-based and a metal acetate - triethanolamine-based solution. The characteristics of the precursor solution are based on the determination of the stability constants by the computer program Superquad. The prediction of the complex stability in this solution was related to the complexation of the three metal ions (Cu2+, Nd3+ and Ba2+) with a certain ligand. IR-spectroscopy was used for the determination of the gel. This resulted in a better understanding of the composition of the solution and could be used for preparation of more stable sol - gel precursors for the synthesis of homogeneous end products. These sol - gel systems were used for the deposition of highly textured superconducting thin films on SrTiO3 substrates by dip-coating. Using detailed thermal analysis, it is shown that the morphology of the films can be optimised by adjusting the parameters during thermal treatment, resulting in dense and highly textured thin films. Special attention is given to the microstructure of the thin film because of its relevance to the superconducting transport properties of the coated conductor system.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TRANSITION-METAL OXIDES, COMPLEXES
journal title
JOURNAL OF MATERIALS CHEMISTRY
J. Mater. Chem.
volume
17
issue
17
pages
1714 - 1724
Web of Science type
Article
Web of Science id
000245946800011
JCR category
MATERIALS SCIENCE, MULTIDISCIPLINARY
JCR impact factor
4.339 (2007)
JCR rank
14/173 (2007)
JCR quartile
1 (2007)
ISSN
0959-9428
DOI
10.1039/b614149h
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
418547
handle
http://hdl.handle.net/1854/LU-418547
date created
2008-06-11 14:34:00
date last changed
2014-03-17 14:34:57
@article{418547,
  abstract     = {The objective of this paper is to obtain a better insight into the sol - gel mechanism of water-based precursors for the development of thin NdBa2Cu3O7-y (NBCO) superconducting films. The influence of metal complexation behaviour on the formation of transparent and homogenous gels after the combination of different metal salts and ligands has been studied for several metal salts (Cu2+, Nd3+ and Ba2+). Two inorganic aqueous sol - gel precursors have been studied: a metal nitrate - citric acid-based and a metal acetate - triethanolamine-based solution. The characteristics of the precursor solution are based on the determination of the stability constants by the computer program Superquad. The prediction of the complex stability in this solution was related to the complexation of the three metal ions (Cu2+, Nd3+ and Ba2+) with a certain ligand. IR-spectroscopy was used for the determination of the gel. This resulted in a better understanding of the composition of the solution and could be used for preparation of more stable sol - gel precursors for the synthesis of homogeneous end products. These sol - gel systems were used for the deposition of highly textured superconducting thin films on SrTiO3 substrates by dip-coating. Using detailed thermal analysis, it is shown that the morphology of the films can be optimised by adjusting the parameters during thermal treatment, resulting in dense and highly textured thin films. Special attention is given to the microstructure of the thin film because of its relevance to the superconducting transport properties of the coated conductor system.},
  author       = {Schoofs, Bart and Van de Vyver, David and Vermeir, Pieter and Schaubroeck, Jo and Hoste, Serge and Herman, Gerrit and Van Driessche, Isabel},
  issn         = {0959-9428},
  journal      = {JOURNAL OF MATERIALS CHEMISTRY},
  keyword      = {TRANSITION-METAL OXIDES,COMPLEXES},
  language     = {eng},
  number       = {17},
  pages        = {1714--1724},
  title        = {Characterisation of the sol-gel process in the superconducting NdBa2Cu3O7-y system},
  url          = {http://dx.doi.org/10.1039/b614149h},
  volume       = {17},
  year         = {2007},
}

Chicago
Schoofs, Bart, David Van de Vyver, Pieter Vermeir, Jo Schaubroeck, Serge Hoste, Gerrit Herman, and Isabel Van Driessche. 2007. “Characterisation of the Sol-gel Process in the Superconducting NdBa2Cu3O7-y System.” Journal of Materials Chemistry 17 (17): 1714–1724.
APA
Schoofs, B., Van de Vyver, D., Vermeir, P., Schaubroeck, J., Hoste, S., Herman, G., & Van Driessche, I. (2007). Characterisation of the sol-gel process in the superconducting NdBa2Cu3O7-y system. JOURNAL OF MATERIALS CHEMISTRY, 17(17), 1714–1724.
Vancouver
1.
Schoofs B, Van de Vyver D, Vermeir P, Schaubroeck J, Hoste S, Herman G, et al. Characterisation of the sol-gel process in the superconducting NdBa2Cu3O7-y system. JOURNAL OF MATERIALS CHEMISTRY. 2007;17(17):1714–24.
MLA
Schoofs, Bart, David Van de Vyver, Pieter Vermeir, et al. “Characterisation of the Sol-gel Process in the Superconducting NdBa2Cu3O7-y System.” JOURNAL OF MATERIALS CHEMISTRY 17.17 (2007): 1714–1724. Print.