Skip to main content
Log in

Development of Nb tube processed Nb3Al multifilamentary superconductor

  • Published:
Journal of Fusion Energy Aims and scope Submit manuscript

Abstract

The Nb tube process has recently been developed at NRIM (Japan) for fabricating Nb3Al multifilamentary superconductors containing more than one million continuous ultrafine filaments of less than 0.1 μm diameter. The adjustment of hardness of Al cores relative to Nb matrix by alloying Al cores with additives of Mg, Ag(-Ge), Cu(-Ge), Zn, etc. improved remarkably the cold workability of Nb/Al composites. Wires heat treated below 1000°C show superior properties to a commercial multifilamentary (Nb,Ti)3Sn conductor: (1) higherJ c (4.2 K) (1.5×109 A/m2 at 10 T), (2) smaller degradation inJ c with mechanical strain, and (3) smaller ac loss (resulting from a smaller effective superconducting filament diameter: about 2 μm). Furthermore, sensitivity to irradiation is nearly the same as that of (Nb,Ti)3Sn. Other techniques to produce Nb3Al are unsuitable for developing a conductor with multifilamentary structure, and thereby the Nb tube processed Nb3Al multifilamentary conductors is the best available for fusion reactor magnets.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. Zeritis, Y. Iwasa, T. Ando, Y. Takahashi, M. Nishi, H. Nakajima, and S. Shimamoto. (1991).IEEE Trans. Magnetics,27:1829.

    Google Scholar 

  2. G. W. Webb (1978).Appl. Phys. Lett.,32:773.

    Google Scholar 

  3. S. D. Dahlgren (1975).IEEE Trans. Magnetics,MAG-11:217.

    Google Scholar 

  4. K. Togano, T. Takeuchi, and K. Tachikawa (1982).Appl. Phys. Lett.,41:199.

    Google Scholar 

  5. T. Takeuchi, K. Togano, and K. Tachikawa (1987).IEEE Trans. Magnetics,MAG-23:965.

    Google Scholar 

  6. H. Kumakura, K. Togano, K. Tachikawa, Y. Yamada, S. Murase, E. Nakamura, and M. Sasaki (1986).Appl. Phys. Lett.,48:601.

    Google Scholar 

  7. K. Togano, H. Kumakura, and K. Tachikawa (1987).IEEE Trans. Magnetics,MAG-23:960.

    Google Scholar 

  8. R. Borman, H. U. Krebs, and A. D. Kent (1986).Adv. Cryogen. Engineer.,32:1041.

    Google Scholar 

  9. S. Ceresara, M. V. Ricci, N. Sacchetti, and G. Sacerdoti (1975).IEEE Trans. Magnetics,MAG-11:263.

    Google Scholar 

  10. T. Ando, Y. Takahashi, M. Nishi, Y. Yamada, K. Ohmatsu, and M. Nagata (1991).IEEE Trans. Magnetics,27:1775.

    Google Scholar 

  11. L. H. Thieme, S. Pourrahimi, B. B. Scwartz, and S. Foner (1985).IEEE Trans. Magnetics,MAG-21:756.

    Google Scholar 

  12. K. Watanabe, K. Noto, Y. Kamisada, E. Suzuki, and Y. Muto (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds. (Elsevier Sci. Publishers Ltd.), p. 962.

  13. M. R. Pickus, J. T. Holthins, and M. Rosen (1980).Filamentary A-15 Superconductors, M. Suenaga and A. F. Clark, eds. (Plenum Press, New York), p. 331.

    Google Scholar 

  14. S. Saito, K. Ikeda, S. Ikeda, A. Nagata, and K. Noto (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds. (Elsevier Sci. Publishers Ltd.), p. 974.

  15. K. Inoue, Y. Iijima, and T. Takeuchi (1988).Appl. Phys. Lett.,52:1724.

    Google Scholar 

  16. T. Takeuchi, Y. Iijima, M. Kosuge, K. Inoue, K. Watanabe, and K. Noto (1988).Appl. Phys. Lett.,53:2444.

    Google Scholar 

  17. K. Inoue, Y. Iijima, and T. Takeuchi (1989).Cryogenics,29:418.

    Google Scholar 

  18. T. Takeuchi, Y. Iijima, and K. Inoue (1989).MRS Int'l Mtg. Adv. Mats.,6:19.

    Google Scholar 

  19. T. Takeuchi, Y. Iijima, M. Kosuge, T. Kuroda, M. Yuyama, and K. Inoue (1989).IEEE Trans. Magnetics,25:2068.

    Google Scholar 

  20. K. Inoue, T. Takeuchi, Y. Iijima, and M. Kosuge (1989).Cryogenics,29:361.

    Google Scholar 

  21. T. Takeuchi, M. Kosuge, Y. Iijima, K. Inoue, and K. Watanabe (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds. (Elsevier Sci. Publishers Ltd.), p. 950.

  22. T. Kuroda, H. Wada, Y. Iijima, and K. Inoue (1989).J. Appl. Phys.,65:4445.

    Google Scholar 

  23. T. Kuroda, M. Yuyama, K. Itoh, and H. Wada (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds (Elsevier Sci. Publishers Ltd.), p. 956.

  24. K. Itoh, M. Yuyama, T. Kuroda, T. Takeuchi, M. Kosuge, and H. Wada (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds. (Elsevier Sci. Publishers Ltd.), p. 962.

  25. T. Takeuchi, M. Kosuge, Y. Iijima, K. Inoue, and K. Watanabe (1990).Adv. Cryogen. Engineer.,36:361.

    Google Scholar 

  26. T. Takeuchi, M. Kosuge, Y. Iijima, A. Hasegawa, T. Kiyoshi, and K. Inoue (1991).IEEE Trans. Magnetics,27:2045.

    Google Scholar 

  27. T. Takeuchi, M. Kosuge, Y. Iijima, A. Hasegawa, T. Kiyoshi, F. Matsumoto, and K. Inoue (1991).J. Japan Inst. Metals (Japanese),55:472

    Google Scholar 

  28. J. L. Jorda, R. Flukiger, A. Junod, and J. Muller (1981).IEEE Trans. Magnetics,MAG-17:557.

    Google Scholar 

  29. W. H. Warnes and D. C. Larbalestier (1986).Cryogenics,26:643.

    Google Scholar 

  30. K. Yasohama, K. Morita, and T. Ogasawara (1987).IEEE Trans. Magnetics,MAG-23:1728.

    Google Scholar 

  31. I. Hlasnik, S. Takacs, V. P. Burjak, M. Majoros, J. Krajcik, L. Krempasky, M. Polak, M. Jergel, T. A. Korneeva, and I. Ivan (1985).Cryogenics,25:558

    Google Scholar 

  32. J. Bevk, M. Tinkham, F. Habbal, C. J. Lobb, and J. P. Harbison (1981).IEEE Trans. Magnetics,MAG-17:235.

    Google Scholar 

  33. K. Kamata, N. Tada, M. Kosuge, Y. Iijima, T. Takeuchi, K. Inoue, K. Watanabe, K. Noto, Y. Muto, K. Katagiri, and T. Okada (1989).Proc. 6th Japan-US Workshop on High-Field Superconducting Materials, (Boulder), p. 31.

  34. J. W. Ekin (1980).Cryogenics,20:611.

    Google Scholar 

  35. A. R. Sweedler and D. E. Cox (1975).Phys. Rev. B,12:147.

    Google Scholar 

  36. T. Ando, M. Nishi, H. Nakajima, T. Isono, Y. Takahashi, D. Zeritis, and S. Shimamoto (1989).Proc. 11th Int'l Conf. Magnet Technology, Tsukuba, T. Sekiguchi and S. Shimamoto, eds. (Elsevier Sci. Publishers Ltd.), p. 1003.

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Takeuchi, T., Kuroda, T., Itoh, K. et al. Development of Nb tube processed Nb3Al multifilamentary superconductor. J Fusion Energ 11, 7–18 (1992). https://doi.org/10.1007/BF01060206

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01060206

Keywords

Navigation