Status of MgB2 superconducting wires at Sam Dong Co., Ltd. in Korea
CHOI Jun Hyuk, LEE Dong Gun （Sam Dong）； 前田 穂, 崔 世鎔 （Kangwon 国立大）； 金 正鎬 （Wollongong 大）
Abstract:Sam Dong Co., Ltd., is a heavy electrical industry for various copper wires in Korea. Since 2014, Sam Dong Co., Ltd. has been developing a variety of customized MgB2 superconducting wires, especially 7- and 19-filament for DC/AC applications. Recently, we are studying the optimization of precursors to further enhance a core density with homogeneity. The densification is known to be a key factor to increase a superconducting active area, results in superior critical current property. In our presentation, we will prove a strong correlation between critical current and precursors under different magnetic field regions.