Fabrication of MgB/sub 2/ tapes sheathed with carbon steels by ex situ and in situ methods
Fabrication of MgB/sub 2/ tapes sheathed with carbon steels by ex situ and in situ methods
复制标题
采用非原位和原位方法制造碳钢护套 MgB/sub 2/带
DOI：
10.1109/tasc.2003.812204
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发表时间：
2003
影响因子：
1.8
通讯作者：
H. Kumakura
中科院分区：
文献类型：
--
作者：
H. Fujii;K. Togano;H. Kumakura
采用非原位法和原位法制备了碳钢包覆MgB/sub - 2/带。在4.2 K和900/spl℃下热处理后，前者的临界电流密度（J/sub c/）约为2 kA/cm/sup 2/，而后者在600/spl℃下热处理后的临界电流密度（J/sub c/）约为3 kA/cm/sup 2/。非原位法制备的带在场方向上的J/sub / c/各向异性比原位法制备的带大得多。
MgB/sub 2/ tapes sheathed with carbon steel (CS) were fabricated by a powder-in-tube technique with ex situ and in situ methods. The critical current density (J/sub c/) value of the former tape was about 2 kA/cm/sup 2/ at 4.2 K and 10 T by heat treatment at 900/spl deg/C, whereas the J/sub c/ value of the latter tape reached about 3 kA/cm/sup 2/ by heat treatment at temperature as low as 600/spl deg/C. The J/sub c/ anisotropy with respect to field direction of the tapes fabricated by the ex situ method was much larger than that of the tapes fabricated by the in situ method.