Critical current degradation and delamination crack observation of epoxy-coated REBCO superconducting tapes after thermal cycles in liquid nitrogen
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DOI: 10.1016/j.ceramint.2021.07.155
Abstract: Abstract The delamination and critical current (Ic) degradation caused by thermal stress after epoxy impregnation are threats for the application of REBa2Cu3O7-x(REBCO, RE = Rare earth) superconducting magnets. In this work, two types of REBCO tapes were… read more here.
Keywords: cycles liquid; thermal cycles; delamination; critical current ... See more keywords
Uniaxial Strain Induced Critical Current Degradation of Ag-Sheathed Bi-2212 Round Wire
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DOI: 10.1109/tasc.2017.2787133
Abstract: The critical current degradation of Bi-2212 Ag-sheathed round wire subjected to uniaxial strain was studied at 4.2 K in 14 T background field. The strains applied on the sample are both tension and compression. The additional tensile… read more here.
Keywords: strain; critical current; current degradation; round wire ... See more keywords
The Influence of Local Critical Current Degradation on the Quench Characteristics of GdBCO Tapes and Coils
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DOI: 10.1109/tasc.2018.2802941
Abstract: We experimentally investigated the influence of local critical current degradation on the thermal and electromagnetic behavior around the local degradation region and the time-dependent characteristics of the voltage across it. The local critical current degradation… read more here.
Keywords: effect; local critical; tape; current degradation ... See more keywords
Critical Current Degradation of Coated Conductors Under Soldering Conditions
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DOI: 10.1109/tasc.2018.2804094
Abstract: The critical current degradation of coated conductors was investigated at 77 K s.f., after heating the samples in a solder bath to temperatures between 200 °C and 300 °C for durations between 30 s and up to… read more here.
Keywords: soldering conditions; degradation; current degradation; critical current ... See more keywords
Computation of the Reversible Critical Current Degradation in Nb $_{3}$Sn Rutherford Cables for Particle Accelerator Magnets
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DOI: 10.1109/tasc.2018.2810222
Abstract: Superconducting coils limit current is usually measured on unloaded short samples of strands extracted from the same cable used to wound the coil. However, the critical current density of Nb $_{3}$Sn strands is strongly dependent… read more here.
Keywords: cables particle; degradation; particle accelerator; rutherford cables ... See more keywords