Advertisement

Microstructures and Superconducting Properties of Y-Ba-Cu Oxide Coils Prepared by the Explosive Compaction Technique

  • S. Hagino
  • M. Suzuki
  • T. Takeshita
  • K. Takashima
  • H. Tonda
Conference paper

Abstract

Explosive compaction technique possesses considerable potential as a means of densifying metal, ceramics and mixtures of these powders. We applied this technique to preparation of silver sheathed coils of Y-Ba-Cu superconducting oxide. The coils to be compacted were placed into metal tube and the tube was filled with SiC powder as a pressure propagating medium and the tube was explosively compacted by a cylindrically axi-symmetric method. The coils explosively compacted were then sintered, and microstructure observations and superconducting property measurements were made. The oxide core was seen to be very dense, and a part of a Y-Ba-Cu oxide coil had a critical current density higher than 13,000A/cm2 at 77K. This results show that the explosive compaction technique will be an effective means to prepare coils with excellent superconducting properties.

Keywords

Critical Current Density Liquid Nitrogen Temperature Longitudinal Cross Section Oxide Core Explosive Compaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    J.G.Bednorz and K.A.Müller : Z. Phys. B64 (1986) 189.ADSCrossRefGoogle Scholar
  2. [2]
    M.K.Wu, J.R.Ashburn, C.J.Torng, P.H.Hor, R.L.Meng, L.GaO, Z.J.Haung, Y.Q.Wang and C.W.Chu : Phys. Rev. Lett. 58 (1987) 908.ADSCrossRefGoogle Scholar
  3. [3]
    Y.Enomoto, T.Murakami, M.Suzuki and K.Moriwaki : Jpn. J. Appl. Phys. 26 (1987) L1248.ADSCrossRefGoogle Scholar
  4. [4]
    K. Takashima, H.Tonda, M.Ueno, T.Toraishi and M.Miyano : J. Iron & Steel Inst. 73 (1987) 2219.Google Scholar
  5. [5]
    J.W.Ekin : J. Appl. Phys. 49 (1978) 3406.ADSCrossRefGoogle Scholar
  6. [6]
    J.W.Ekin and A.F.Clark : J. Appl. Phys. 49 (1978) 3410.ADSCrossRefGoogle Scholar

Copyright information

© Springer Japan 1989

Authors and Affiliations

  • S. Hagino
    • 1
  • M. Suzuki
    • 1
  • T. Takeshita
    • 1
  • K. Takashima
    • 2
  • H. Tonda
    • 2
  1. 1.Central Research InstituteMitsubishi Metal CorporationOmiya, Saitama, 330Japan
  2. 2.Faculty of EngineeringKumamoto UniversityKumamoto, 860Japan

Personalised recommendations