Adiabatic normal zone development in MgB2 superconductors

H. van Weeren; N.C. van den Eijnden; W.A.J. Wessel; P. Lezza; S.I. Schlachter; W. Goldacker; M. Dhallé; A. den Ouden; B. ten Haken; H.H.J. ten Kate

doi:10.1109/TASC.2005.849227

Adiabatic normal zone development in MgB2 superconductors

H. van Weeren, N.C. van den Eijnden, W.A.J. Wessel, P. Lezza, S.I. Schlachter, W. Goldacker, M. Dhallé, A. den Ouden, B. ten Haken, H.H.J. ten Kate

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Abstract

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 language	English
Pages (from-to)	1667-1670
Number of pages	4
Journal	IEEE transactions on applied superconductivity
Volume	15
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2005.849227
Publication status	Published - 3 Oct 2005

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10.1109/TASC.2005.849227

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title = "Adiabatic normal zone development in MgB2 superconductors",

abstract = "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.",

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doi = "10.1109/TASC.2005.849227",

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T1 - Adiabatic normal zone development in MgB2 superconductors

AU - van Weeren, H.

AU - van den Eijnden, N.C.

AU - Wessel, W.A.J.

AU - Lezza, P.

AU - Schlachter, S.I.

AU - Goldacker, W.

AU - Dhallé, M.

AU - den Ouden, A.

AU - ten Haken, B.

AU - ten Kate, H.H.J.

PY - 2005/10/3

Y1 - 2005/10/3

N2 - 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.

AB - 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.

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JO - IEEE transactions on applied superconductivity

JF - IEEE transactions on applied superconductivity

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Adiabatic normal zone development in MgB2 superconductors

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