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Evaluation of Critical Current Density in Ba2Y1Cu3O7-y, Compound

Published online by Cambridge University Press:  28 February 2011

Hiroaki Kumakura ,
Mitsuru Uehara ,
Kazuhiko Takahashi  and
Kazumasa Togano
Hiroaki Kumakura
Affiliation:
National Research Institute for Metals, Tsukuba Laboratories, 1–2–1, Sengen, Sakura-mura, Niihari-gun, Ibaraki 305, Japan
Mitsuru Uehara
Affiliation:
National Research Institute for Metals, Tsukuba Laboratories, 1–2–1, Sengen, Sakura-mura, Niihari-gun, Ibaraki 305, Japan
Kazuhiko Takahashi
Affiliation:
Research Center, SANYO Electric Co., Ltd. 1–18–13, Hashiridani, Hirakata-city, Osaka 573, Japan
Kazumasa Togano
Affiliation:
National Research Institute for Metals, Tsukuba Laboratories, 1–2–1, Sengen, Sakura-mura, Niihari-gun, Ibaraki 305, Japan
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Abstract

Magnetization measurement was carried out for Ba2Y1Cu3O7-y bulk and powder samples at 77K and 4.2K in order to evaluate intrinsic Jc. Excellent Jc values above 10 A/cm were obtained for powder samples at 77K and lOkOe. These Jc values were somewhat increased by substiution of Er for Y. High temperature sintering at 1030°C brings about drastic increase in magnetization which can be explained by the grain coarsening.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 789
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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