Adiabatic normal zone development in MgB2 superconductors

H. van Weeren, N.C. van den Eijnden, Wilhelm A.J. Wessel, P. Lezza, S.I. Schlachter, W. Goldacker, Marc M.J. Dhalle, A. den Ouden, Bernard ten Haken, Herman H.J. ten Kate

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A-priori knowledge of the normal zone development in MgB/sub 2/ conductors is essential for quench protection of applications. Therefore the normal zone propagation in a monofilament MgB/sub 2//Fe conductor under near-adiabatic conditions at 4.2 K has been measured and simulated. The results show normal zone propagation velocities up to several meters per second. In addition, by including the voltage-current relation into the computational model, the influence of the n-value on the normal zone propagation is determined. The simulations show that lower n-values suppress the normal zone propagation velocity due to lower heat generation in the MgB/sub 2/ filaments.
Original languageUndefined
Pages (from-to)1667-1670
Number of pages4
JournalIEEE transactions on applied superconductivity
Issue number2/2
Publication statusPublished - 3 Oct 2005


  • IR-54004
  • METIS-227461

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