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首页> 外文期刊>Physica, C. Superconductivity and its applications >Critical current enhancement in (Bi,Pb)(2)Sr2Ca2Cu3O10 tapes via isotropic quasi-columnar defects, induced by uranium fission products
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Critical current enhancement in (Bi,Pb)(2)Sr2Ca2Cu3O10 tapes via isotropic quasi-columnar defects, induced by uranium fission products

机译：通过铀裂变产物引起的各向同性准柱状缺陷，（Bi，Pb）（2）Sr2Ca2Cu3O10带中的临界电流增强

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摘要

UO4 are added to precursor powders of (Bi,Pb)(2)Sr2Ca2Cu3O10 and then textured by PIT technique into Ag-BiSCCO tapes. Tapes are then irradiated with thermal neutrons to fission U-235. Fission products create short quasi-columnar defects that act as pinning centers. Transport properties, before and after irradiation, are investigated. Several features emerge from these studies. B-irr increases by a factor of similar to2 at fluence, F(n)similar to 2x10(16) cm(-2). I-c increases by a factor similar to 4, for B//ab = 2 T, and by factor similar to 100, for B//c = 0.8 T. The highest I-c enhancement shifts toward higher fluence as the applied field increases. The intrinsic BiSCCO anisotropy is reduced up to a factor of 100. [References: 3]
机译：将UO4添加到（Bi，Pb）（2）Sr2Ca2Cu3O10的前体粉末中，然后通过PIT技术将其纹理化为Ag-BiSCCO胶带。然后用热中子辐照磁带，使其裂变U-235。裂变产品会产生短的准柱状缺陷，从而成为钉扎中心。研究了辐照前后的传输性能。这些研究显示了几个特征。 B-irr的通量增加了类似系数2，F（n）近似于2x10（16）cm（-2）。对于B // ab = 2 T，I-c增加类似于4的因数，对于B // c = 0.8 T，I-c增加类似于100的因数。随着施加场的增加，最高的I-c增强趋向于更高的通量。 BiSCCO的固有各向异性降低到100倍。[参考：3]

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