Critical current density in superconducting Nb-Tistrands in the 100 mT to 11 T applied field range

被引:32
作者
Boutboul, T. [1 ]
Le Naour, S. [1 ]
Leroy, D. [1 ]
Oberli, L. [1 ]
Previtali, V. [1 ]
机构
[1] CERN, AT Dept, CH-1211 Geneva 23, Switzerland
关键词
critical current density; magnetization; superconducting wires; titanium alloys;
D O I
10.1109/TASC.2006.870777
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
The knowledge of the critical current density in a wide temperature and applied magnetic field range is a crucial issue for the design of a superconducting magnet, especially for determining both current and temperature margins. The critical current density of LHC-type Nb-Ti strands of 0.82 and 0.48 mm diameter was measured by means of critical current and magnetization measurements at both 4.2 K and 1.9 K and for a broad magnetic field range (up to 11 T). For the magnetic field range common to both measurement methods, critical current density values as extracted from transport current and from magnetization data are compared and found fairly consistent. Our experimental data are compared to other sets from literature and to scaling laws as well.
引用
收藏
页码:1184 / 1187
页数:4
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