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arXiv 2302.08979cond-mat.supr-con
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用超导Transformer测量REBCO电缆临界电流

Critical Current Measurement of REBCO Cables by Using a Superconducting Transformer

H. Yu, J. Lu, J. D. Weiss, D. C. van der Laan

摘要:

开发在高磁场中承载高电流的REBCO电缆对于未来的大规模磁体应用至关重要。本文介绍了在国家高磁场实验室(NHMFL)的实验装置上,对两种不同REBCO超导电缆的临界电流进行了测量。简单堆叠电缆由NHMFL通过堆叠21个REBCO带而无需焊接。Advanced Conductor Technologies提供的圆芯导体(CORC)电缆具有21层REBCO带,每层2条带。实验装置由一个12 T的15 cm口径的分裂螺线管磁体和一个超导Transformer(SCT)电流源组成。特别注意REBCO电缆和SCT输出之间的焊点的制造。在4.2 K下测量电压-电流迹线作为磁场的函数,由此确定临界电流。讨论了这种测量的细节。

英文摘要:

Development of REBCO cables that carry high electrical current in high magnetic field is crucial for future large-scale magnet applications. This experimental work presents the critical current measurements of two different REBCO cables by a test facility at the National High Magnetic Field Laboratory (NHMFL). The simple-stacked cable is made by the NHMFL by stacking 21 REBCO tapes without soldering. The Conductor-on-Round-Core (CORC) cable provided by Advanced Conductor Technologies has 21 layers of REBCO tapes with 2 tapes/layer. The test facility consists of a 12 T split solenoid magnet with 15 cm bore providing transverse field to the samples, a superconducting transformer (SCT) as a current source providing up to 45 kA current. Special attentions were paid to fabrication of solder joints between REBCO cables and the SCT output. The voltage-current traces were measured as a function of magnetic field at 4.2 K, from which the critical currents are determined. The details of this measurement are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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