Abstract
Deterioration of the critical current density, Jc, as the result of bending strain is measured for silver-sheathed ceramic high Tc superconducting wires. The multicore composite wires (3–85 cores) are fabricated by a conventional powder-in-tube method using YBa2Cu3Ox compound. Results concerning ceramic core diameters, thermal stress, and bending strain are discussed, comparing the multicore wires with single core wires. The value of Jc in the multicore wires cannot reach a higher value than in the single core wire (Jc=1600A/cm2 in zero magnetic field) because of cracks and ruptures in the sheath which are attributed to unequal stress between cores. Multi-core composite wires, however, have the advantage of suitable mechanical properties, especially flexibility due to good contact between the ceramic and the silver sheath.
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© 1990 Plenum Press, New York
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Chikaba, J. (1990). Effects of Bending Strain on the Critical Current Density in Superconducting YBa2Cu3Ox Multicore Wires. In: Reed, R.P., Fickett, F.R. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 36. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9880-6_71
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DOI: https://doi.org/10.1007/978-1-4613-9880-6_71
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