ORBi: Laurent Philippe - Study by Hall probe mapping of the trapped flux modification produced by local heating in YBCOHTS bulks for different surface/volume ratios

Reference : Study by Hall probe mapping of the trapped flux modification produced by local heating i...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/22618

Title :	Study by Hall probe mapping of the trapped flux modification produced by local heating in YBCOHTS bulks for different surface/volume ratios
Language :	English
Author, co-author :	Laurent, Philippe [Université de Liège - ULg > > Capteurs et systèmes de mesures électriques >]
	Mathieu, Jean-Philippe [Université de Liège - ULg > Chimie inorganique structurale > > >]
	Mattivi, Brice [Université de Liège - ULg > Electrical Engineering & Computer Science > > >]
	Fagnard, Jean-François [Université de Liège - ULg > Dép. d'électric.]
	Meslin, S. [CRISMAT-ENSICAEN, CNRS/UMR 6508 > > > > > >]
	Noudem, J. G. [CRISMAT-ENSICAEN, CNRS/UMR 6508 > > > > > >]
	Ausloos, Marcel [Université de Liège - ULg > Département de physique > Physique statistique appliquée et des matériaux >]
	Cloots, Rudi [Université de Liège - ULg > > Chimie inorganique structurale >]
	Vanderbemden, Philippe [Université de Liège - ULg > > Capteurs et systèmes de mesures électriques >]
Publication date :	2005
Journal title :	Superconductor Science and Technology
Publisher :	Iop Publishing Ltd
Volume :	18
Issue/season :	8
Pages :	1047-1053
Audience :	International
ISSN :	0953-2048
City :	Bristol
Keywords :	[en] superconductivity ; magnetic measurements ; thermal measurements
Abstract :	[en] The aim of this report is to compare the trapped field distribution under a local heating created at the sample edge for different sample morphologies. Hall probe mappings of the magnetic induction trapped in YBCO bulk samples maintained out of thermal equilibrium were performed on YBCO bulk single domains, YBCO single domains with regularly spaced hole arrays, and YBCO superconducting foams. The capability of heat draining was quantified by two criteria: the average induction (B) decay and the size of the thermally affected zone caused by a local heating of the sample. Among the three investigated sample shapes, the drilled single domain displays a trapped induction which is weakly affected by the local heating while displaying a high trapped field. Finally, a simple numerical modelling of the heat flux spreading into a drilled sample is used to suggest some design rules about the hole configuration and their size.
Research units :	Services Universitaires Pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - SUPRATECS
Funders :	Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Union Européenne = European Union - UE = EU ; Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE ; Ministère Français de la Recherche et de la Technologie
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/22618
DOI :	10.1088/0953-2048/18/8/004
Other URL :	http://stacks.iop.org/SUST/18/1047

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