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High-performance Ba1-x K (x) Fe2As2 superconducting joints for persistent current operation

文献类型：期刊论文

作者Zhu, Yanchang1,2,3; Wang, Dongliang1,2,3; Wang, Qiqi4; Zhang, Zhan4,5; Guo, Wenwen1,2; Huang, He1,2,3; Ma, Hongjun4; Liu, Fang4; Liu, Huajun4; Ma, Yanwei1,2,3
刊名SUPERCONDUCTOR SCIENCE & TECHNOLOGY
出版日期2022-03-01
卷号35
关键词iron-based superconductor superconducting joint critical current ratio joint resistance
ISSN号0953-2048
DOI10.1088/1361-6668/ac4ff1
通讯作者Wang, Dongliang(dongliangwang@mail.iee.ac.cn) ; Ma, Yanwei(ywma@mail.iee.ac.cn)
英文摘要High-performance superconducting joints are the key to achieving persistent-mode magnets. Herein, the superconducting joints between Ba1-x K (x) Fe2As2 (BaK-122) superconducting tapes were prepared by a simple cold-pressing method, and the joint resistance of the iron-based superconducting joint was estimated by field-decay method for the first time. Via the scanning electron microscope (SEM), electron backscattered diffraction (EBSD), electron probe microanalysis (EPMA) and x-ray computed tomography (XCT) measurements, it is found that the joint sample CP80 shows fine performance. At 4.2 K and 10 T, a transport critical current I (c) of 105 A for the joint sample CP80 was measured, and the critical current ratio (CCR = Ijoint c/Itape c) of the joint was 94.6%. On the other hand, the joints exhibit a pretty low joint resistance of 2.7 x 10(-13) omega in self-field at 4.2 K. Among iron-based superconductors, we are the first to estimate the accurate resistance of iron-based superconducting joint by the field-decay method. All these show the great prospective to apply BaK-122 in a series of practical applications that require superconducting joints as key components.
WOS关键词MICROSTRUCTURE
资助项目National Key R&D Program of China[2018YFA0704200] ; National Key R&D Program of China[2017YFE0129500] ; National Natural Science Foundation of China[51861135311] ; National Natural Science Foundation of China[U1832213] ; National Natural Science Foundation of China[51721005] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB25000000] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC026] ; International Partnership Program of Chinese Academy of Sciences[182111KYSB20160014]
WOS研究方向Physics
语种英语
WOS记录号WOS:000753150900001
出版者IOP Publishing Ltd
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127521]  
专题中国科学院合肥物质科学研究院
通讯作者Wang, Dongliang; Ma, Yanwei
作者单位1.Chinese Acad Sci, Inst Elect Engn, Key Lab Appl Superconduct, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Inst Elect Engn & Adv Electromagnet Drive Technol, Jinan 250013, Peoples R China
4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
5.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yanchang,Wang, Dongliang,Wang, Qiqi,et al. High-performance Ba1-x K (x) Fe2As2 superconducting joints for persistent current operation[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2022,35.
APA Zhu, Yanchang.,Wang, Dongliang.,Wang, Qiqi.,Zhang, Zhan.,Guo, Wenwen.,...&Ma, Yanwei.(2022).High-performance Ba1-x K (x) Fe2As2 superconducting joints for persistent current operation.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,35.
MLA Zhu, Yanchang,et al."High-performance Ba1-x K (x) Fe2As2 superconducting joints for persistent current operation".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 35(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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