Measurement of the Transverse Resistivity of NbTi and Internal-Tin Nb3Sn Strands

被引：3

作者：

Corato, Valentina ^{[1
]}

Muzzi, Luigi ^{[1
]}

Vetrella, Ugo Besi ^{[1
]}

Zignani, Chiarasole Fiamozzi ^{[1
]}

della Corte, Antonio ^{[1
]}

机构：

[1] Energia & Sviluppo Econo Sostenibile ENEA, Agenzia Nazl Nuove Tecnol, I-00044 Rome, Italy

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

关键词：

Inter-filament resistivity; proximity effect; superconducting strands; SUPERCONDUCTING COMPOSITES;

D O I：

10.1109/TASC.2010.2093097

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 4-probe method, which directly measures the transverse resistivity in multi-filamentary superconducting strands, has been developed at ENEA. The technique has been applied to NbTi strands in order to compare the results with the ones obtained through indirect approaches. Samples with different external diameters have been considered, for evaluating the effect of the Cu:non-Cu ratio into the wires. For Nb3Sn strands with either a distributed Nb-Ta diffusion barrier design, or with a single Ta diffusion barrier between the filamentary region and the stabilizing copper shell, a detailed mapping of the transverse resistivity of the matrix has been achieved. The temperature and magnetic field dependence of the transverse resistance has been measured for Nb3Sn samples.

引用

页码：3369 / 3372

页数：4

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