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Effect of oxygen absorption on superconducting properties of BiSrCaCu2Al0.5Ox glass-ceramics

Published online by Cambridge University Press:  29 June 2016

Kazumi Hirata ,
Yukio Kubo  and
Yoshihiro Abe
Kazumi Hirata
Affiliation:
Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466, Japan
Yukio Kubo
Affiliation:
Japan Fine Ceramics Center, Mutsuno-cho, Atsuta-ku, Nagoya 456, Japan
Yoshihiro Abe
Affiliation:
Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466, Japan
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Abstract

The melts of BiSrCaCu2Al0.5Ox were quenched by vacuum casting into fine fused silica tubes (≍ 2 mmÏΦ), resulting in the formation of glass rods. The oxygen absorption during the reheating of the glass specimens was studied by thermogravimetric analysis. It was found that the superconducting properties of glass-ceramics depend on the amount of the oxygen absorption of the specimen during heating and cooling. The increase of Tc with the annealing at lower temperatures was explained in terms of increasing of oxygen in the specimen.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 1 , January 1992 , pp. 48 - 52
Copyright
Copyright © Materials Research Society 1992

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References

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