低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
研究論文
in-situ/PIT法で作製したMgB2線材及びコイルの臨界電流特性
田中 和英高橋 雅也岡田 道哉北口 仁熊倉 浩明山田 秀之内山 順仁
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2006 年 41 巻 11 号 p. 519-524

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This paper reports on the fabrication and testing of four MgB2 coils made using a wind-and- react method. We made round 100 m-long class MgB2 mono-core wires sheathed with a Cu/Fe composite. The SiC concentration was fixed at 0, 2.5, 5.0 and 10.0 atomic-%. The round SiC-doped MgB2-superconducting wire was made using an in-situ PIT process. The 0 to 5% SiC-doped wire have Jc of the coil was almost equal to that of a short sample obtained at 4.2 K in external fields. This indicates that the 100 m-long class wire has a very homogeneous Jc distribution. The Ic degradation of the round mono-core wire occurred at the bending strain of as high as 0.53%. This shows that the react-and-wind method is reliable for large-size coils.

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© 2006 公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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