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ST409 - Improvement of the Magnetization of a Superconducting Bulk using an Iron Core (Contest runner-up)

Improvement of the Magnetization of a Superconducting Bulk using an Iron Core

B. Gony1, K. Berger1, B. Douine1, M. R. Koblischka2, and J. Lévêque1
 
1University of Lorraine, GREEN, Research Group in Electrical Engineering and Electronics of Nancy -EA 4366, Faculté des Sciences et Technologies BP 70239,
54506 Vandoeuvre-lès-Nancy Cedex, France
2Institute of Experimental Physics, Saarland University Campus C63, 66123, Saarbrücken, Germany 
 
Abstract — In most studies, the magnetization was carried out without the iron core which is not the case in superconducting electrical applications. So in this paper we study the magnetization of YBCO bulk using a Pulsed Field Magnetization method in a symmetrical iron core. This iron core has the same structure as the iron core in an electrical motor. We have tested a new process of magnetization, firstly without the iron core and secondly with the iron core where we find an enhancement about 36 % of the trapped magnetic field. The contribution of the iron core in this improvement was discussed. These experimentations help to carry out the magnetization of the superconducting bulk in the superconducting motor or in the coupling applications. 
 
Keywords (Index Terms) — High-temperature superconductors, Magnetic cores, Magnetization, YBCO bulk. 
 
IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), January 2015.
Received August 17, 2014; Selected August 28, 2014. Reference ST409; Category 3.
ASC 2014 manuscript 3LPo2H-04 published online in IEEE Trans. Appl. Supercond
(IEEE XPLORE) DOI: 10.1109/TASC.2014.2373494 on November 24, 2014.