CUED Publications database

Magnetic properties of drilled bulk high-temperature superconductors filled with a ferromagnetic powder

Lousberg, GP and Fagnard, J-F and Chaud, X and Ausloos, M and Vanderbemden, P and Vanderheyden, B (2011) Magnetic properties of drilled bulk high-temperature superconductors filled with a ferromagnetic powder. Superconductor Science and Technology, 24. ISSN 0953-2048

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Abstract

It is shown that filling the holes of a drilled bulk high-temperature superconductor (HTS) with a soft ferromagnetic powder enhances its trapping properties. The magnetic properties of the trapped field magnet are characterized by Hall probe mapping and magnetization measurements. This analysis is completed by a numerical model based on a 3D finite-element method where the conductivity of the superconducting material is described by a power law while the permeability of the ferromagnetic material is fixed to a given value and is considered uniform. Numerical results support the experimental observations. In particular, they confirm the increase of trapped flux that is observed with Hall probe mapping after impregnation. © 2011 IOP Publishing Ltd.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:09
Last Modified: 08 Dec 2014 02:22
DOI: 10.1088/0953-2048/24/3/035008