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首页> 外文期刊>Physica, C. Superconductivity and its applications >Influence of substrate magnetism of coated conductors on critical current distribution measurement using magnetic knife method
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Influence of substrate magnetism of coated conductors on critical current distribution measurement using magnetic knife method

机译：涂覆导体的基板磁性对使用磁刀法测量临界电流分布的影响

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摘要

A YBCO coated conductor with non-magnetic substrate and a magnetic Ni alloy tape were prepared to investigate the influence of the substrate magnetism on the J(c) distribution measurement. We measured the J(c) distribution of the YBCO coated conductor and that of the same YBCO coated conductor with the magnetic tape over-lied on its face (the space between the superconducting layer and the magnetic tape is 20 pin which is the thickness of protecting Ag layer), and compared the measured results with each other. The measured results agreed well with each other, and there was little influence of the tape magnetism on the J(c) distribution measurement. Based on this fact, the J(c) distribution in a HoBCO coated conductor with magnetic substrate was measured using the magnetic knife method. Twenty-two voltage taps were attached to the conductor with 5 mm separation along the conductor axis. The lateral Jc distributions in the sections were generally in the shape of trapezoid.
机译：制备了具有非磁性基底的YBCO涂层导体和磁性Ni合金带，以研究基底磁性对J（c）分布测量的影响。我们测量了YBCO涂层导体和同一YBCO涂层导体的J（c）分布，磁带表面重叠（超导层和磁带之间的空间为20针，即保护Ag层），并相互比较测量结果。测量结果彼此吻合得很好，并且带磁对J（c）分布测量的影响很小。基于这一事实，使用电磁刀法测量了带有磁性基板的HoBCO涂层导体中的J（c）分布。将二十二个电压抽头连接到导体，沿导体轴的间距为5 mm。截面中的横向Jc分布通常呈梯形形状。

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