89650 20231127095531.0 doi 10.1016/j.cryogenics.2020.103070 sideral 117745 ART-2020-117745 eng Cubero, A. Universidad de Zaragoza (orcid)0000-0002-3309-5961 Electromagnetic behaviour and thermal stability of a conduction-cooled, no-insulated 2G-HTS coil at intermediate temperatures 2020 Access copy available to the general public Unrestricted The electromagnetic and thermal properties of a double pancake coil made of second generation high temperature superconductor, 2G-HTS, have been studied. The coil was wound with no-insulation between turns (NI coil) and was later impregnated with epoxy resin and glued to a copper support plate. The coil was thermally anchored to the cryocooler cold finger and cooled by conduction. After several thermal cycles no degradation of its superconducting properties was observed. The coil was operated under high vacuum and high currents (up to 400 A in steady conditions) at different temperatures in the range between 5 K and 77 K, with special focus on the analysis above 30 K. The charge and discharge characteristics, and the experimentally measured and numerically estimated critical currents, have been studied. The different loss contributions during current ramp and the thermal contact conductance between different parts of the double pancake coil have been measured. The implications of these two factors on the thermal stability and the behaviour of the whole cryogenic system are discussed. info:eu-repo/grantAgreement/ES/DGA/T54-17R info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52105-R info:eu-repo/grantAgreement/ES/MINECO/ENE2017-83669-C4-1-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.226 2020 THERMODYNAMICS 33 / 60 = 0.55 2020 Q3 T2 PHYSICS, APPLIED 93 / 160 = 0.581 2020 Q3 T2 0.669 2020 Physics and Astronomy (miscellaneous) 2020 Q2 Materials Science (miscellaneous) 2020 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Núñez-Chico, A.B. (orcid)0000-0002-5637-0081 Navarro, R. (orcid)0000-0002-1328-1716 Angurel, L.A. Universidad de Zaragoza (orcid)0000-0001-5685-2366 Martínez, E. Universidad de Zaragoza (orcid)0000-0003-4839-5286 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 108 (2020), 103070 1-9 Cryogenics Cryogenics 0011-2275 3259606 http://zaguan.unizar.es/record/89650/files/texto_completo.pdf Versión publicada 62645 http://zaguan.unizar.es/record/89650/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:89650 articulos driver 2023-11-27-09:46:57 ARTICLE