129316 20231215094307.0 doi 10.1088/0953-2048/29/8/085012 sideral 96057 ART-2016-96057 eng Núñez-Chico, A. B. (orcid)0000-0002-5637-0081 Enhanced quench propagation in 2G-HTS coils co-wound with stainless steel or anodised aluminium tapes 2016 Early quench detection and thermal stability of superconducting coils are of great relevance for practical applications. Magnets made with second generation high temperature superconducting (2G-HTS) tapes present low quench propagation velocities and therefore slow voltage development and high local temperature rises, which may cause irreversible damage. Since quench propagation depends on the anisotropy of the thermal conductivity, this may be used to achieve an improvement of the thermal stability and robustness of 2G-HTS coils. On pancake type coils, the thermal conductivity along the tapes (coil''s azimuthal direction) is mostly fixed by the 2G-HTS tape characteristics, so that the reduction of anisotropy relies on the improvement of the radial thermal conductivity, which depends on the used materials between superconducting tapes, as well as on the winding and impregnation processes. In this contribution, we have explored two possibilities for such anisotropy reduction: by using anodised aluminium or stainless steel tapes co-wound with the 2G-HTS tapes. For all the analysed coils, critical current distribution, minimum quench energy values and both tangential and radial quench propagation velocities at different temperatures and currents are reported and compared with the results of similar coils co-wound with polyimide (Kapton®) tapes. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/T12 info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52105-R info:eu-repo/grantAgreement/ES/MINECO/MAT2011-22719 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.878 2016 PHYSICS, CONDENSED MATTER 21 / 67 = 0.313 2016 Q2 T1 PHYSICS, APPLIED 38 / 147 = 0.259 2016 Q2 T1 0.966 2016 Ceramics and Composites 2016 Q1 Condensed Matter Physics 2016 Q1 Metals and Alloys 2016 Q1 Materials Chemistry 2016 Q1 Electrical and Electronic Engineering 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Martínez, E. Universidad de Zaragoza (orcid)0000-0003-4839-5286 Angurel, L. A. Universidad de Zaragoza (orcid)0000-0001-5685-2366 Navarro, R. Universidad de Zaragoza (orcid)0000-0002-4140-4058 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 29, 8 (2016), 085012 [9 pp.] Supercond. sci. technol. Superconductor Science and Technology 0953-2048 596785 http://zaguan.unizar.es/record/129316/files/texto_completo.pdf Postprint 1507949 http://zaguan.unizar.es/record/129316/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:129316 articulos driver 2023-12-14-13:16:44 ARTICLE