Mechanical and critical current characteristics of high-strength Bi 2
Sr 2
Ca 2
Cu 3
O
10+δ
multi-filamentary tapes reinforced with thicker Ni-alloy laminations with various pre-tensions
Abstract:We investigated the stress–strain relation and the applied strain dependence of critical current I
c(ε
app) of high-strength Bi2Sr2Ca2Cu3O10+δ
(Bi2223) R&D tapes reinforced by ~100-μm-thick Ni-based alloy sheets with various pre- tensions F
pre applied during a lamination process. We confirmed that the thickening of Ni-alloy laminations is useful to enhance Young’s modulus compared with commercial tapes (≈30-μm-thick laminations). I
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