The precursor Y_(1)Ba_(2)Cu_(3)O_(x) (Y123) filaments were prepared by solution spinning through aqueous poly(vinyl alcohol) solution containing mixed Y, Ba and Cu acetates. The as-drawn filaments were heated to remove volatile components and to generate a superconducting phase. The filamentary superconductors were passed through Ag paste and sintered. By controlling the heating condition, the composite with excellent connection between the filaments and metallic Ag matrix was obtained. The overall transport critical current density (J_(e)) of more than 2000 A/cm~(2) at 77 K and 0 T was achieved for the composite with partially melted Y123 filaments. Although the J_(e) value decreased by applying a low magnetic field less than 0.1 T, the superconductivity of the composite maintained at 10 T at 77 K.
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机译：Y_（1）Ba_（2）Cu_（3）O_（x）（Y123）长丝是通过溶液旋转通过含有乙酸Y，Ba和Cu混合乙酸的聚乙烯醇水溶液制备的。将拉伸后的长丝加热以除去挥发性组分并产生超导相。使丝状超导体通过Ag糊剂并烧结。通过控制加热条件，获得了在长丝和金属Ag基体之间具有优异连接性的复合材料。对于具有部分熔化的Y123细丝的复合材料，在77 K和0 T下，总的运输临界电流密度（J_（e））大于2000 A / cm〜（2）。尽管通过施加小于0.1 T的低磁场会降低J_（e）值，但复合材料的超导性在77 K时保持在10 T.
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