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Superconducting oxide YBa2Cu3O7−x prepared by the metal alkoxide method

Published online by Cambridge University Press:  31 January 2011

Shingo Katayama  and
Masahiro Sekine
Shingo Katayama
Affiliation:
Colloid Research Institute, 350-1 Ogura, Yahata-higashi-ku, Kitakyushu 805, Japan
Masahiro Sekine
Affiliation:
Colloid Research Institute, 350-1 Ogura, Yahata-higashi-ku, Kitakyushu 805, Japan
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Abstract

Preparation of the superconducting oxide, YBa2Cu3O7−x, was carried out according to the metal alkoxide method. To obtain a homogeneous solution of yttrium, barium, and copper alkoxide in an organic solvent, alkoxides of copper and yttrium were modified by the O-R interchange reaction with 2-dimethylaminoethanol and the structures of their modified alkoxides were studied by 1H-NMR, FT-IR, and EXAFS. The YBa2Cu3O7−x precursor, prepared by hydrolysis of the present solution of alkoxides, was calcined at 850°C for 3 h to give YBa2Cu3O7−x powder as a single phase. This powder was sintered between 900°C and 950°C and characterized for bulk density, microstructure, Tc, and Jc.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 4 , April 1990 , pp. 683 - 690
Copyright
Copyright © Materials Research Society 1990

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References

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