Metastable composite tape superconductors of high overall current density
โ Scribed by T. Ogasawara; M. Chiba; N. Miyazawa; S. Ban; Y. Kubota; K. Yasohama
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 279 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0011-2275
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โฆ Synopsis
The concept of face-cooled composite tape has been proposed to stabilize possible high critical current densities in high T c oxides. Stability is promoted by the combined action of dynamic stability and transient cryogenic stability. The expression for the limiting current density of stability is derived as a function of the pertinent parameters of superconductor, stabilizing normal metal and the coolant. An experimental proof of the analysis is given on Nb3Sn composite tapes.
๐ SIMILAR VOLUMES
The effect of partial cracking on critical current density (J,) has been modelled for Agsheathed superconductor tapes. Effects of crack length and density on current-voltage characteristics and J, were evaluated for monofilament and multifilament tapes. The results show that a single long crack is m
Local and overall transport critical current I C and n-value at 77 K of multifilamentary Bi2223-composite tape were studied under applied tensile and bending strains. The I C and n-value of the local elements constituting of the overall sample and those of the overall sample were measured for the vo
## We propose a magnetic diffusion model for the computation of current density distributions in composite superconductors. The two-dimensional model is based on Maxwell's equations and a non-linear constitutive relation between the current density and the electric field. The resulting diffusion
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