[7a-S42-1~11] 11.1 Fundamental properties

[7a-S42-8] Development of material potential of polycrystalline RE-based superconductors

〇Jun-ichi Shimoyama¹, Yota Saito¹, Yasuaki Takeda², Takanori Motoki¹, Shigeru Horii³ (1.Aoyama Gakuin Univ., 2.Univ. of Tokyo, 3.Kyoto Univ.)

Keywords:superconductor

Potentials of RE-based superconductors (RE123, RE247, RE124) as for polycrystalline materials have been studied for development of magnetically grain aligned materials free from weak-link problems. Relationships among chemical composition, synthesis conditions, shape and size of grains and superconducting properties of sintered bulk samples of each phase are systematically studied. Discussions on possibilities and strategies for improvement of material properties of these superconductors will be made.