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Diffusion solidification model on Y-system superconductors

Published online by Cambridge University Press:  31 January 2011

Teruo Izumi ,
Yuichi Nakamura  and
Yuh Shiohara
Teruo Izumi
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center, Tokyo, Japan
Yuichi Nakamura
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center, Tokyo, Japan
Yuh Shiohara
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center, Tokyo, Japan
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Abstract

The unidirectional solidification of the zone melt method was performed in order to clarify the growth mechanism on Y-system superconductors. A sharp faceted interface of YBa2Cu3Oy (123) crystals was obtained in the sample grown at the low growth rate of 1 mm/h. The volume of the 211 phase changed drastically from liquid to 123 crystal. These results lead to the idea that the necessary solute for peritectic reaction is provided through a liquid. Based on this idea, we developed a simple solidification model that is in good agreement with the experimental results.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 7 , July 1992 , pp. 1621 - 1628
Copyright
Copyright © Materials Research Society 1992

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References

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