[11a-S321-1~5] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[11a-S321-4] Microstructure of Coated Conductors for high-I_C

〇Ataru Ichinose¹, Kiyosumi Tsuchiya², Akihiro Kikuchi³, Oguro Hidetoshi⁴ (1.CRIEPI, 2.KEK, 3.NIMS, 4.Tokai Univ.)

Keywords:Superconductor, REBCO, Microstrcuture

REBa₂Cu₃O_y Coated Conductors (REBCO CCs, RE: Y, Gd, Eu) are commercially available from wire companies, and REBCO CCs for projects such as cables, MRI and wind power generators are procured. When producing and designing superconducting equipment, the critical current I_C is one of important parameters. In this time, the microstructure of the Fujikura, SuNAM, and Sumitomo REBCO CCs with I_C values (4 mm width) more than 200 A at 77 K and self-magnetic field are invetigated using transmission microcopy.