Abstract:We have produced the Bi2Sr2Ca2Cu3O10 phase by oxidation of a rapidly quenched alloy precursor. Metallic fragments of Bi2Sr2Ca2Cu3 are prepared by planar flow casting. After oxidation and annealing in air, the 2223 phase is the major constituent obtained (>80%). The structure is pseudo-tetragonal with a = 0.3814 nm, c = 3.702 nm, and we also observe a modulation along the [110] direction. The superconducting onset temperature is at 115 K and zero resistance is reached at ∼ 25 K after treatment in air and ∼ 70 K… Show more
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