Characterization of damage in REBCO tapes for joint-less 2G-HTS magnets during mechanical slitting

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-01-15 DOI:10.1016/j.physc.2024.1354629

Hao Dong , Daxing Huang , Hao Yu , Hongwei Gu , Fazhu Ding

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引用次数: 0

Abstract

Joint-less magnets made from REBa₂Cu₃O₇₋_δ (REBCO) tapes have the potential to generate stable magnetic fields due to their closed-loop advantages, making them promising for applications in magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) fields. This paper improves the method for mechanically slitting joint-less tapes and provides a detailed study of the microscopic effects at the edges and endpoints under varying slitting pressures. The research examines the impact of different slitting pressures and laser slitting on the Ag layer, superconducting layer, and buffer layer of REBCO tapes. Microscopic observations reveal that damage is more pronounced at the endpoints than at the edges, with damage to the REBCO layer worsening significantly as slitting pressure increases. To address these issues, two solutions are proposed: a ‘returning the blade’ technique and a laser slitting method, both effectively mitigating damage.

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来源期刊

Physica C-superconductivity and Its Applications 物理-物理：应用

CiteScore

2.70

自引率

11.80%

发文量

102

审稿时长

66 days

期刊介绍： Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.