26.86-tesla direct-current magnetic field generated with an all-REBCO superconducting magnet

Superconductor Science and Technology Pub Date : 2024-06-06 DOI:10.1088/1361-6668/ad54f9

Xintao Zhang, Shuai Hu, Liang Guo, Wen Hong, Zhaoran Wang, Hong-jun Ma, Shuqing Zhang, J. Qin, Chao Zhou, Peng Gao, H. Jin, Liangjun Shao, Ti-Ming Qu, Zhiyong Hong, Fang Liu, Hua-jun Liu, Yuntao Song, Jiangang Li

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Abstract

This paper reports an all REBCO (REBa2Cu3Ox, where RE=Y, Gd) superconducting magnet that generated a direct-current magnetic field of 26.86 T at 4.2 K in self-field, which is the highest magnetic field achieved by the high temperature superconducting (HTS) magnet. The magnet consists of a stack of 10 double pancake (DP) coils wound with two different width REBCO tapes, and the no-insulation (NI) winding technology was applied to increase its engineering current density. The inner and outer winding diameters and overall height of the magnet are 30 mm, 103.98 mm, and 102.6 mm, respectively. In order to control the stress risk in HTS magnet, the over-banding made of high elastic modulus stainless steel tapes was employed to the magnet. In addition, no obvious degradation was found in the performance of the magnet after quench at 26.86 T of 295.5 A. These test results demonstrate the great potential of REBCO magnets in high field applications.

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全 REBCO 超导磁体产生的 26.86 特斯拉直流磁场

本文报告了一种全 REBCO（REBa2Cu3Ox，其中 RE=Y, Gd）超导磁体，该磁体在 4.2 K 的自场中产生了 26.86 T 的直流磁场，这是高温超导（HTS）磁体达到的最高磁场。该磁体由 10 个双薄饼（DP）线圈堆叠组成，线圈上缠绕着两条不同宽度的 REBCO 磁带，并采用了无绝缘（NI）绕组技术来提高其工程电流密度。磁体的内外绕组直径和整体高度分别为 30 毫米、103.98 毫米和 102.6 毫米。为了控制 HTS 磁体的应力风险，磁体采用了由高弹性模量不锈钢带制成的包边。这些测试结果证明了 REBCO 磁体在高磁场应用中的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Superconductor Science and Technology

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