Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment

doi:10.1088/1361-6668/ac30ea

	Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment
	Yang, Dongsheng 2,3; Yu, Min 2; Ma, Hongjun 2; Zhang, Zhengchuang 2,3; Wang, Min 4; Liu, Sheng 4; Jin, Huan 2; Gao, Peng 2; Zhou, Chao 2; Liu, Fang 2
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2022
卷号	35
关键词	Bi-2212 cable CICC pre-over pressure heat treatment
ISSN号	0953-2048
DOI	10.1088/1361-6668/ac30ea
通讯作者	Qin, Jinggang(qinjg@ipp.ac.cn)
英文摘要	Due to the excellent current carrying performance of Bi2Sr2CaCu2O8+x (Bi-2212) and the development of its industrial manufacturing technology, Bi-2212 is a promising material to be developed as superconductor for application in fusion reactor magnets. The cable-in-conduit conductor (CICC) concept is often chosen for the development of large-scale magnets because of their high stability. Bi-2212 is presently the only kind of copper oxide superconducting material which can be made into solid round wire, which provides a good basis for developing CICCs. The over pressure (OP) heat treatment can significantly improve the superconducting performance of Bi-2212 wires but it also reduces the wire diameter by similar to 5%. This leads to an increase of the void fraction of CICCs, typically from 30% to 40% for a CICC with ITER scale dimensions. A pre-OP heat treatment before OP is proposed in this study. The reduction of the wire diameter can be completed before the formation of the continuous superconducting phase, which would dramatically decrease the CICC void fraction. One Bi-2212 cable consisting of 84 wires, was first pre-OP heat treated successfully and after completing the OP heat treatment, the cable's transport performance was tested. The results showed good performance with a critical current (I (c)) of 35.7 kA at 5.8 T background field in 4.2 K, which is consistent with the predication.
资助项目	National Natural Science Foundation of China[U2032216] ; National Natural Science Foundation of China[51807193] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB25000000] ; Youth Innovation Promotion Association, CAS
WOS关键词	BEHAVIOR
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000723397100001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association, CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126756]
专题	中国科学院合肥物质科学研究院
通讯作者	Qin, Jinggang
作者单位	1.Hefei Comprehens Natl Sci Ctr, Inst Energy, POB 1126, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China 4.China Int Nucl Fus Energy Program Execut Ctr, Beijing 100862, Peoples R China 5.Northwest Inst Nonferrous Met Res, Xian 710016, Shanxi, Peoples R China 6.Muroran Inst Technol, 27-1 Mizumoto, Muroran, Hokkaido 0508585, Japan 7.Univ Twente, Fac Sci & Technol, Energy Mat & Syst, NL-7500 AE Enschede, Netherlands
推荐引用方式 GB/T 7714	Yang, Dongsheng,Yu, Min,Ma, Hongjun,et al. Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2022,35.
APA	Yang, Dongsheng.,Yu, Min.,Ma, Hongjun.,Zhang, Zhengchuang.,Wang, Min.,...&Qin, Jinggang.(2022).Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,35.
MLA	Yang, Dongsheng,et al."Performance of first Bi-2212 cable with pre-over pressure and over pressure heat treatment".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 35(2022).