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Computation and experiments on the static and dynamic characteristics of high-critical temperature superconducting levitation.

Author(s) : TAKEDA N., UESAKA M., MIYA K.

Type of article: Article

Summary

To analyse the characteristics, a computational approach based on the axisymmetric vector potential method and the critical state model has been developed. By performing experiments on melt-grown YBCO bulk superconductors, the following characteristics have been investigated: the hysteretic property of the levitation force, the static magnetic stiffness and the vibration characteristics. By comparing the experimental results with the computed ones, it has been found that the grain boundaries and the cracks influence the shielding current flow and consequently the levitation force. Furthermore, using the computed results, a correlation has been obtained between the critical-current density and the magnetic damping and stiffness, which characterize the dynamic behaviour of high-critical temperature superconducting levitation.

Details

  • Original title: Computation and experiments on the static and dynamic characteristics of high-critical temperature superconducting levitation.
  • Record ID : 1996-0038
  • Languages: English
  • Source: Cryogenics - vol. 34 - n. 9
  • Publication date: 1994/09

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