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Poster (Scientific congresses and symposiums)
Trapped field of two close bulk superconductors with misaligned c-axes
Houbart, Michel; Fagnard, Jean-François; Dennis, Anthony et al.
2019EUCAS 2019 - 14th European Conference on Applied Superconductivity
Peer reviewed
 

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Keywords :
Bulk superconductor; Trapped field magnet; Magnetic field gradient; Interacting bulk superconductors; Flux pinning
Abstract :
[en] The simultaneous magnetisation of two cylindrical bulk YBCO superconductors (diameter 15.7 mm, height 8.8 mm) closely spaced is investigated experimentally. The applied magnetic field is parallel to the c-axis of one of them, while the other has its c-axis directed at different angles with the first. Results are compared to the trapped field above an isolated sample. Experiments are carried out at 65 K and 77 K both in field cooled under 2.5 T and in zero field cooled under 7 T. Experimental trapped field data are compared to analytical calculations assuming fully magnetized superconductors. For a centre-to-centre distance equal to twice the sample height, the presence of the second sample is found not to alter the current distribution inside the first. Consequently, the contribution of both samples adds up, thus increasing the magnetic flux density between them.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Houbart, Michel  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Fagnard, Jean-François  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Dennis, Anthony;  University of Cambridge > Department of Engineering
Namburi, Devendra Kumar;  University of Cambridge > Department of Engineering
Shi, Yunhua;  University of Cambridge > Department of Engineering
Durrell, John;  University of Cambridge > Department of Engineering
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Language :
English
Title :
Trapped field of two close bulk superconductors with misaligned c-axes
Alternative titles :
[en] Belgique
Publication date :
03 September 2019
Event name :
EUCAS 2019 - 14th European Conference on Applied Superconductivity
Event organizer :
ESAS
Event place :
Glasgow, United Kingdom
Event date :
du 1er septembre 2019 au 5 septembre 2019
Audience :
International
Peer reviewed :
Peer reviewed
Funders :
ULiège - Université de Liège [BE]
Henry Royce Institute [GB]
Available on ORBi :
since 15 February 2021

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