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Fabrication of Large Melt-textured RE-Ba-Cu-O (RE = Gd, Dy) Superconductors and Their Trapped Magnetic Fields

Published online by Cambridge University Press:  18 March 2011

Shinya Nariki ,
Naomichi Sakai  and
Masato Murakami
Shinya Nariki
Affiliation:
Superconductivity Research Laboratory, ISTEC, Shibaura, Minato-ku, Tokyo, 105-0023, Japan
Naomichi Sakai
Affiliation:
Superconductivity Research Laboratory, ISTEC, Shibaura, Minato-ku, Tokyo, 105-0023, Japan
Masato Murakami
Affiliation:
Superconductivity Research Laboratory, ISTEC, Shibaura, Minato-ku, Tokyo, 105-0023, Japan
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Abstract

We have succeeded in synthesizing RE-Ba-Cu-O (RE = Gd and Dy) bulk superconductors with excellent field trapping properties. Large c-axis oriented single-domain Gd-Ba-Cu-O bulk samples with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The Gd-Ba-Cu-O sample 50 mm in diameter could trap a high flux density of 2.4 T at 77 K. In addition, we measured the trapped field between two Gd-bulks in order to minimize the demagnetizing effect and found that it reached 3.3 T. The single-domain Dy-Ba-Cu-O/Ag bulk 48 mm in diameter was also fabricated in air and its trapped field was 1.9 T at 77 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 659: Symposium II – High-Temperature Superconductors-Crystal Chemistry, Processing & Properties , 2000 , II10.7
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Murakami, M., Sakai, N., Higuchi, T., and Yoo, S.I., Supercond. Sci. Technol., 9, 1015 (1996).Google Scholar
2. Ikuta, H., Mase, A., Yanagi, Y., Yoshikawa, M., Itoh, Y., Oka, T., and Mizutani, U., Supercond. Sci. Technol., 11, 1345 (1998).Google Scholar
3. Morita, M., Nagashima, K., Takebayashi, S., Murakami, M., and Sawamura, M., Mater. Sci. Eng. B, 53, 159 (1998).Google Scholar
4. Mizutani, U., Mase, A., Ikuta, H., Yanagi, Y., Yoshikawa, M., Itoh, Y., and Oka, T., Mater. Sci. Eng. B, 65, (1999).Google Scholar
5. Mizutani, U., Ikuta, H., Hosokawa, T., Ishihara, H., Tazoe, K., Oka, T., Itoh, Y., Yanagi, Y., Yoshikawa, M., Supercond. Sci. Technol., 13, 836 (2000).Google Scholar
6. Nariki, S., Seo, S.J., Sakai, N., and Murakami, M., Supercond. Sci. Technol., 13, 778 (2000).Google Scholar
7. Nariki, S., Sakai, N., and Murakami, M., Physica C, 341–348, 2409 (2000).Google Scholar
8. Nariki, S., Sakai, N., and Murakami, M., ISTEC Journal., 13 (2), 27 (2000).Google Scholar
9. Nariki, S., Sakai, N., and Murakami, M., Physica C (in press); presented at the 13th International Symposium on Superconductivity (ISS 2000), Tokyo, Japan, 2000.Google Scholar
10. Nariki, S., Sakai, N., and Murakami, M., Physica C (in press); presented at the 13th International Symposium on Superconductivity (ISS 2000), Tokyo, Japan, 2000.Google Scholar
11. Nagashima, K., Higuchi, T., Sok, J., Yoo, S.I., Fujimoto, H., and Murakami, M., Cryogenics, 37, 577 (1997).Google Scholar