Skip to main content

Experimental Observation of Anomalous Magneto-Resistivity in 10–20 kA Class Aluminum-Stabilized Superconductors for the Large Helical Device

  • Chapter
Advances in Cryogenic Engineering Materials

Abstract

Degradation of recovery current due to the unexpected enhancement of resistivity of aluminum stabilizers has been observed in pool-boiling-type superconductors that have been developed for the helical coils of Large Helical Device. Dependence of the measured resistivity on the magnetic field suggests that this is a kind of anomalous magnetoresistivity. The Hall effect in metal-metal composites is considered to be the most plausible candidate to explain this observation. We compared our data with the calculated values based on this model and confirmed that this model explains the experimental results well.

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

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 259.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 329.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 329.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. A. Iiyoshi, M. Fujiwara, O. Motojima, et al., Design study for the Large Helical Device, Fusion Technol. 17: 169 (1990).

    CAS  Google Scholar 

  2. O. Motojima, K. Akaishi, K. Fujii, et al., Physics and engineering design studies on the Large Helical Device, Fusion Eng. Des., 20: 3 (1993).

    Article  CAS  Google Scholar 

  3. J. Yamamoto, T. Mito, O. Motojima, et al., Research and development of superconductors and superconducting coils for the Large Helical Device, Fusion Eng. Des., 20: 139 (1993).

    Article  CAS  Google Scholar 

  4. T. Mito, J. Yamamoto, K. Takahata, N. Yanagi, et al., Stability tests on R and D superconductors for the Large Helical Device, Cryogenics 31: 634 (1991).

    Article  Google Scholar 

  5. T. Mito, K. Takahata, N. Yanagi, S. Yamada, M. Sakamoto, A. Nishimura, et al., Short sample tests of aluminum-stabilized superconductors for Large Helical Device, Fusion Eng. Des. 20: 233 (1993).

    Article  CAS  Google Scholar 

  6. T. Mito, J. Yamamoto, K. Takahata, N. Yanagi, et al., Development of superconducting conductors for Large Helical Device, IEEE Trans. Magn. 27: 2224 (1993).

    Article  Google Scholar 

  7. P.W. Eckels, N.C. Iyer, A. Patterson, A.T. Male, J.H. Parker Jr., and J.W, Coltman, Magnetoresistance; the Hall effect in composite aluminum cryoconductors, Cryogenics 29: 748 (1989).

    Article  CAS  Google Scholar 

  8. H. Kaneko and N. Yanagi, Enhancement of magnetoresistance due to Hall current in aluminum-copper composite, Cryogenics 32: 1114 (1992).

    Article  CAS  Google Scholar 

  9. M. Sakamoto, T. Mito, K. Takahata, N. Yanagi, et al., Excitation experiments of module coil (TOKIMC) as an R and D program for Large Helical Device, IEEE Trans. Appl. Supercond., 3: 543 (1993).

    Article  Google Scholar 

  10. S. Imagawa, N. Yanagi, T. Mito, T. Satow, J. Yamamoto, O. Motojima, and LHD Group, Reduction of anomalous resistivity in an aluminum stabilized superconductor for the Large Helical Device, in: “Advances in Cryogenic Engineering Materials”, Plenum, New York (1994).

    Google Scholar 

  11. H. Kaneko, Insulation of highly conductive metal in composite stabilizer for reduction of Hall current across surface, to be published in Cryogenics.

    Google Scholar 

  12. H. Nakazawa, S. Inaba, H. Moriai, et al., Magnetoresistivity of OFC/CuNi/A1 Composites, Report no. LHD-92-A1–HC1008 (in Japanese), Hitachi Cable Ltd., Tsuchiura, Japan (1992).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1994 Springer Science+Business Media New York

About this chapter

Cite this chapter

Yanagi, N. et al. (1994). Experimental Observation of Anomalous Magneto-Resistivity in 10–20 kA Class Aluminum-Stabilized Superconductors for the Large Helical Device. In: Reed, R.P., Fickett, F.R., Summers, L.T., Stieg, M. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 40. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9053-5_59

Download citation

  • DOI: https://doi.org/10.1007/978-1-4757-9053-5_59

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-9055-9

  • Online ISBN: 978-1-4757-9053-5

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics