期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 23, 期 3, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2013.2243795
关键词
Cryocooler-cooled superconducting magnet; Gd-Ba-Cu-O coil; impregnation; magnetic field deviation
资金
- Japan Science and Technology Agency, JST
RE-Ba-Cu-O (REBCO) high-temperature superconducting conductors have the advantage of high critical current density in a magnetic field above 10 T as well as tolerance to high tensile stress. REBCO high-temperature superconducting coils are expected to be applied to superconducting magnets using cryocoolers. While epoxy-resin-impregnated superconducting coils are considered to be appropriate for superconducting magnets using cryocoolers because the impregnation provides sufficient thermal conductivity, the degradation of epoxy-resin-impregnated REBCO coils due to extremely low nominal cleavage strength is a serious problem. This problem is negligible for wax (paraffin)-impregnated REBCO coils. A wax-impregnated GdBCO layer-wound coil using cryocoolers was successfully operated at a current between -300 and 300 A.
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