[19a-PB2-1~39] 11 Superconductivity (Poster)

[19a-PB2-26] Clarification of dominant factors of critical current properties of superconducting joints for Bi2223 polycrystalline materials

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

Keywords:Bi2223, superconducting joint, grain coupling

Recently, we have successfully demonstrated superconducting joints between the Bi2223 tapes. In addition, the joint principle and the strategies for improving the critical current properties were investigated by preparing superconducting joints for Bi2223 polycrystalline bulks. Based on these backgrounds, the clarification of dominant factors of the critical current properties of superconducting joints was attempted in this study.