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Preparation of the 110 K single phase superconductor Bi1.6Pb0.4Ca2Sr2Cu3Ox using a precursor matrix reaction method

Published online by Cambridge University Press:  31 January 2011

Z. Wang ,
B.W. Statt ,
M.J.G. Lee ,
S. Bagheri  and
J. Rutter
Z. Wang
Affiliation:
Department of Physics, University of Toronto, Toronto, Ontario, Canada
B.W. Statt
Affiliation:
Department of Physics, University of Toronto, Toronto, Ontario, Canada
M.J.G. Lee
Affiliation:
Department of Physics and Scarborough College, University of Toronto, Toronto, Ontario, Canada
S. Bagheri
Affiliation:
Department of Metallurgy and Materials Science, University of Toronto, Toronto, Ontario, Canada
J. Rutter
Affiliation:
Department of Metallurgy and Materials Science, University of Toronto, Toronto, Ontario, Canada
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Abstract

Nearly single phase sintered samples of the lead-doped high-Tc oxide superconductor of nominal composition Bi1.6Pb0.4Ca2Sr2Cu3Ox have been prepared using a precursor matrix reaction method. The experimental results indicate that in samples annealed under optimum conditions (200 h at 855 °C) the volume fraction of impurity phases is only about 3%. If the optimum annealing time is exceeded, the high-Tc phase begins to decompose into the low-Tc phase and nonsuperconducting phases. It is found that the precursor reaction matrix method minimizes loss of lead during processing.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 6 , June 1991 , pp. 1160 - 1164
Copyright
Copyright © Materials Research Society 1991

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