고온 초전도 선재의 곡률반경에 따른 특성변화 연구

The study of characteristic change versus a curvature radius of high Tc superconducting wire

.In this study, we measured Ic depending on a curvature radios of High Tc superconducting tapes which were made of a single wire, two and three WIT(wire in tube). Wires are manufactured by the process of press ins and sintering (150h, at 845$^{\circ}C$ ) for the growth of 2223 high Tc Bi superconducting phase. We know that Ic of a single wire decrease with reduction of a curvature radius. The maximum Ic of 2 WIT wire is 2.54 (A) and have a better characteristic than a single wire (0.89 A) at a curvature radius 75mm.