Abstract
85m-long Bi2Sr2CaCu2Oy (Bi-2212)/Ag multilayer tape was successful fabricated. The tape was prepared by the slurry-painting technique. The multilayer tape was facricated by stacking three Bi-2212/Ag monolayer tapes prepared by the slurry-painting technique, wrapping them with a Ag foil, and finally giving a continuous heat treatment of partial melting and slow cooling. The continuous heat treatment was done by moving the tape along the temperature gradient in a specially designed pipe furnace. Jc values of the wire were 8 × l03 A/cm2 at 77 K 0T and higher than 1×10 5A/cm2 at 4.2K, 12T. The variation of Jc value along the 85m-long tape was within 15%. The multilayer tapes showed good strain tolelance of Jc. Jc values unchanged until the bending strain of 0.7% was applied. A small coil fabricated using the “React & Wind” technique had a Jc value almost equal to that of a short straight sample.
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© 1996 Springer Science+Business Media New York
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Hasegawa, T., Hikichi, Y., Kumakura, H., Kitaguchi, H., Togano, K. (1996). Superconducting Properties of Bi2Sr2CaCu2Oy Tape Prepared by the Continuous Heat Treatment Technique. In: Summers, L.T. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 42. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9059-7_93
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DOI: https://doi.org/10.1007/978-1-4757-9059-7_93
Publisher Name: Springer, Boston, MA
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