[16p-D221-1~11] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[16p-D221-5] Fabrication of Bi-2223 Superconducting Joint by Hot-Pressing Process

〇Yasuaki Takeda¹, Gen Nishijima¹, Kensuke Kobayashi^2,1, Hitoshi Kitaguchi¹ (1.NIMS, 2.RIKEN)

Keywords:superconducting joint, Bi-2223, HTS

We have developed superconducting joints between multifilamentary (Bi,Pb)₂Sr₂Ca₂Cu₃O_y [Bi-2223] tapes. At the last meeting of this conference, we quantitatively showed that the critical current of the joints increased by densification of a polycrystalline Bi-2223 intermediate layer. We report the Bi-2223 superconducting joints fabricated by the hot-pressing process, which enables to synthesize a dense intermediate layer by short heat treatment.