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Sol-gel processing of high-Tc superconductors in the Bi–(Pb)–Sr–Ca–Cu–O system

Published online by Cambridge University Press:  31 January 2011

Kunsong Ma  and
Alain C. Pierre
Kunsong Ma
Affiliation:
Department of Mining, Metallurgical and Petroleum Engineering, University of Alberta, Edmonton, Canada, T6G 2G6
Alain C. Pierre
Affiliation:
Department of Mining, Metallurgical and Petroleum Engineering, University of Alberta, Edmonton, Canada, T6G 2G6
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Abstract

Superconducting materials in the Bi–(Pb)–Sr–Ca–Cu–O system have been synthesized by sol-gel processing from nitrates by complexation with citric acid. The gelation process and the microstructures of the gels obtained have been studied through titration and SEM observation. Their phase transformations and microstructure development, during heat treatment, have also been investigated. The critical temperature Tc of superconductors by this sol-gel processing can reach above 100 K.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 6 , June 1992 , pp. 1328 - 1335
Copyright
Copyright © Materials Research Society 1992

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