Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/19397
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dc.contributor.authorMartínez, Elena-
dc.contributor.authorMuñoz, O.-
dc.date.accessioned2009-12-09T09:01:25Z-
dc.date.available2009-12-09T09:01:25Z-
dc.date.issued2008-01-11-
dc.identifier.citationSuperconductor Science and Technology 21: 025009 (2008)en_US
dc.identifier.issn0953-2048-
dc.identifier.urihttp://hdl.handle.net/10261/19397-
dc.description8 pages, 11 figures.-- et al.en_US
dc.description.abstractThe quench development of Cu-stabilized metal-sheathed MgB2 conductors has been analysed. Experimentally, energy pulses were deposited into the conductor by passing rectangular current pulses through a graphite-based epoxy heater. The temperature and the electric field profiles around the point heat disturbance that gives rise to a quench, as well as their time evolution, were measured from multiple voltage taps and thermocouples along the conductor. The measurements have been done at self-field under two different conditions: in vacuum and in Ne vapour. The experimental results are in qualitative agreement with the simulated ones, obtained by solving the one-dimensional heat balance equation of the system and using a finite n value characterizing the I–V curves (V∝In). The temperature and current dependences of the minimum quench energy and the quench propagation velocity are presented. Our results show that the nonlinear power-law current sharing in the normal zone had significant influence on the onset of the quench process and resulted in a marked deviation from the classical quench theory based on the critical state model.en_US
dc.description.sponsorshipThis work was supported by the EU FP6 project NMP3- CT2004-505724 and by the Spanish Ministry of Education and Science, MAT2005-06279-C03-01.en_US
dc.format.extent10752 bytes-
dc.format.mimetypeapplication/octet-stream-
dc.language.isoengen_US
dc.publisherInstitute of Physics Publishing-
dc.rightsclosedAccessen_US
dc.titleQuench onset and propagation in Cu-stabilized multifilament MgB2 conductorsen_US
dc.typeartículoen_US
dc.identifier.doi10.1088/0953-2048/21/02/025009-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1088/0953-2048/21/02/025009en_US
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
dc.contributor.funderEuropean Commission-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
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