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Chemical Preparation of Superconducting Oxides Using Conventional Chelating Agents

Published online by Cambridge University Press:  28 February 2011

Cyril Chiang  and
C. Y. Shei
Cyril Chiang
Affiliation:
Materials Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31015, Taiwan, ROC.
C. Y. Shei
Affiliation:
Materials Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31015, Taiwan, ROC.
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Abstract

Samples of Bi1.4Pb0.6Sr2 Ca2Cu3Oy were prepared by sol-gel technique. The formation of polymeric chelate was made possible by oxalic acid in which metal cations are homogeneously distributed. The functional groups in the chelating agent determine the cation absorption rate that pH value is no more critical. XRD and SQUID showed that the compound has a nearly pure 2223 phase and Tc was measured at 110 K. The synthesis is reproducible and the process is amenable for scaling up.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 889
Copyright
Copyright © Materials Research Society 1990

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References

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