Delamination behaviour of the meter‐long class Fe(Se,Te) coated conductor tapes

IF 1 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-04-19 DOI:10.1016/j.physc.2025.1354728

Han Yang , Fang Liu , Hongjun Ma , Zhenchuang Zhang , Xiao Liu , Shu Tao , Ziming Wang , Huan Jin , Jinggang Qin , Huajun Liu , Chao Zhou

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引用次数: 0

Abstract

FeSeTe coated conductor (CC) tapes have garnered significant attention due to their simple crystal structure, straightforward preparation process, elimination of the need for heat treatment, and the absence of the toxic element arsenic (As). The material's development is progressing favorably, with the successful production of meter-long class tapes. To facilitate its broader application, this study investigates the transverse delamination strength of FeSeTe CC tapes, with a particular focus on the impact of temperature and the location of delamination occurrences. The mechanical delamination tests were conducted using the anvil method, while the microstructure of the fracture surfaces was analyzed using transmission electron microscopy (TEM). The results indicate that the average transverse delamination strength of copper electroplated tapes at room temperature (RT) is 1.77 MPa, which decreases significantly to 0.74 MPa at 77 K, highlighting the substantial impact of low temperature on the mechanical properties of the tapes. TEM analysis revealed that most delamination occurs at the superconductor layer. These findings provide valuable insights for optimizing the mechanical performance of FeSeTe CC tapes for practical applications.

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米级Fe（Se,Te）涂层导体带的分层行为

feeset涂层导体（CC）带因其晶体结构简单、制备工艺简单、无需热处理以及不含有毒元素砷（As）而备受关注。该材料的开发进展顺利，已成功生产出米级胶带。为了促进其更广泛的应用，本研究研究了FeSeTe CC胶带的横向分层强度，特别关注温度和分层发生位置的影响。采用顶砧法进行力学脱层试验，采用透射电镜（TEM）分析断口微观组织。结果表明：室温下镀铜带的平均横向分层强度为1.77 MPa，在77 K时显著降低至0.74 MPa，表明低温对镀铜带力学性能的影响较大；TEM分析表明，大部分脱层发生在超导体层。这些发现为优化FeSeTe CC胶带的实际应用力学性能提供了有价值的见解。

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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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.