[19p-212B-1~15] 11.3 Critical Current, Superconducting Power Applications

△ [19p-212B-8] Fabrication of Bi2223/Ag polycrystalline thick films with high J_c properties by the single heat-treatment under an ambient pressure

〇Yasuaki Takeda¹, Taketo Iwami², Tomoyuki Tanaka², Ryo Koike², Takanori Motoki², Jun-ichi Shimoyama², Takayoshi Nakashima³, Shin-ichi Kobayashi³, Takeshi Kato³ (1.The Univ. of Tokyo, 2.Aoyama Gakuin Univ., 3.SEI, Ltd.)

Keywords:Bi2223, superconducting joint

Toward development of the superconducting joints between DI-BSCCO tapes, we aimed at establishment in the guideline for forming the high J_c intermediates at the joint part and Bi2223 thick films were prepared by the single heat-treatment under an ambient pressure. It was discovered that J_c properties for the films were improved by the optimization of the heat-treatment conditions. These high J_c properties are suitable for forming the practical superconducting joints.