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Showing 1 to 11 of 11 for “"bulk superconductor"”.
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Advanced Numerical Modelling of Bulk Superconductor Magnetisation
… volume, below a certain (critical) temperature. Superconductors can be subdivided into two classifications; type-I, or type-II, with the latter exhibiting a ‘mixed-state’ of superconductivity across their volume. Through appropriate magnetisation, magnetic flux may become ‘pinned’ within type-II …
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The mechanical properties of Y-Ba-Cu-O and Gd-Ba-Cu-O/Ag bulk superconductor magnets
Single-grain RE-Ba-Cu-O bulk high temperature superconductors [or (RE)BCO, where RE = rare earth element or yttrium] have demonstrated significant potential for practical applications due to their ability to trap magnetic fields in excess of 17 T, which is an order of magnitude greater than what …
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Heat capacity measurements of yttrium barium(2)copper(3)oxygen(7-delta) near T(c): Fluctuation effects in a bulk superconductor
… the discontinuous step observed in ""classic"" superconductors. This divergence is indicative of the presence of fluctuation contributions and is due to the exceptionally short Ginzburg-Landau coherence length of this material. Because there is considerable uncertainty in the temperature of …
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Fluctuation contributions to the heat capacity of superconducting thin films
… of the phase transition of a two-dimensional superconductor between its normal and superconducting states. The heat capacity and electrical resistivity have been measured for a series of amorphous Bismuth-Antimony films of various thicknesses. Mean field theories predict a discontinuous jump …
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Numerical Calculation of Losses of Trapped Vortices Under Strong RF Meissner Current and DC Superheating Field in Type II Superconductors
… dynamics and enhancing of superheating field in superconductors has attracted much attention in accelerator physics community to develop next-generation high-performance accelerator cavities. However, the extreme dynamics of curvilinear elastic vortices driven by very strong currents close to the …
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Information Geometry For Nonlinear Least-Squares Data Fitting And Calculation Of The Superconducting Superheating Field
… problems. We study the superheating field of a bulk superconductor within the GinzburgLandau, which is valid only near Tc , and Eilenberger theory, which is valid at all temperatures. We calculate as functions of both the Ginzburg-Landau parameter [kappa] and reduced temperature t = T /Tc the …
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Magnetisation of bulk superconductors for future light-weight electric motors
Bulk superconductors, in their capacity as trapped field magnets, offer a practical means of generating high magnetic fields in small volumes. This is desirable for applications in which portability is of primary concern. In particular, superconducting materials are seen as enablers leading towards …
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Applications of Pulse-Magnetised Bulk Superconductors
… and microscopic examination of matter. Superconductors have proved to be the most economical form of generating magnetic fields when strong magnetic fields are required. In recent times, the (RE)BaCu3O(7-δ) [(RE)BCO] class of high-temperature superconductors in bulk form have been shown …
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Modelling and experimental studies of the magnetic properties of bulk high temperature superconductors
… studies of the magnetic properties of bulk, single grain high temperature superconductors (HTS), such as RE-Ba-Cu-0 [(RE)BCO] where RE refers to a rare earth element, have been performed using a modelling framework developed in this study. This modelling framework can simulate the …
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Experimental and 2D/3D modelling investigation of DC magnetic shielding by machinable MgB2 bulks
L'abstract è presente nell'allegato / the abstract is in the attachment
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The microstructure, mechanical and superconducting properties of (RE)BCO bulk single grains
High-temperature superconducting RE-Ba-Cu-O bulk single grains [(RE)BCO, where RE = Y, Gd, Eu, Sm or Nd] show a wide variability in their mechanical and magnetic flux trapping properties. These variations attribute primarily to variations in the microstructure of (RE)BCO bulk materials. While the …