Strain Effect on Critical Current Degradation in Bi-Based Superconducting Tapes With Different Deformation Modes

doi:10.1109/TASC.2016.2539921

	Strain Effect on Critical Current Degradation in Bi-Based Superconducting Tapes With Different Deformation Modes
	Gao, PF; Xin, CJ; Guan, MZ; Wang, XZ; Zhou, YH; Wang, XZ (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Environm & Disaster Western China, Key Lab Special Funct Mat & Struct Design,Minist, Lanzhou 730000, Peoples R China.
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2016-06
卷号	26 期号:4
关键词	Terms-Critical current degradation deformation modes empirical degradation model superconducting tape
ISSN号	1051-8223
DOI	10.1109/TASC.2016.2539921
文献子类	Article
英文摘要	A 77-K cryostat system combined with different mechanical loading fixtures has been designed and fabricated to provide various strainmodes for Bi-based superconducting tapes. The relations of the corresponding critical current of superconducting tapes and the applied strains are measured. The observations show that the critical current degradation of Bi-2223 superconducting tapes under small strains for different deformation modes is recoverable. While the deformation of tapes increases and exceeds some certain strain values, it is clarified that the critical current and n-value degrade significantly with an irreversible process. The degradation of critical current in Bi-2223 tapes under tension strain is much greater compared to those of bending and torsion strains. To quantitatively predict the degradation dependence upon strains of superconducting tapes, a generalized empirical degradation model based on Ekin's exponential model and Weibull's distribution function is developed for capturing the critical current degradation behavior under different deformation modes. The theoretical predictions exhibit quite good agreement with the experimental data for the critical current degradation of Bi-2223 superconducting tapes under axial, bending, and torsion strains, respectively.
学科主题	Engineering ; Physics
出版地	PISCATAWAY
资助项目	国家自然科学基金项目 ; 国家磁约束核聚变能发展研究专项 ; 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金 ; 国家重大科学仪器设备开发专项
项目编号	National Key Project of ITER on Magneto-Constrained Fusion Energy Development Program [2013GB-110002B] ; National Key Project of Scientific Instrument and Equipment Development [11327802] ; Fund of Innovative Research Groups of the NNSFC [11421062] ; National Natural Science Foundation of China [11302225] ; Fundamental Research for the Central Universities [lzujbky-2015-235]
语种	英语
WOS记录号	WOS:000373944800001
资助机构	NSFC ; MOST ; MOE ; LZU ; MOST
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182525]
专题	土木工程与力学学院_期刊论文
通讯作者	Wang, XZ (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Environm & Disaster Western China, Key Lab Special Funct Mat & Struct Design,Minist, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Gao, PF,Xin, CJ,Guan, MZ,et al. Strain Effect on Critical Current Degradation in Bi-Based Superconducting Tapes With Different Deformation Modes[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2016,26(4).
APA	Gao, PF,Xin, CJ,Guan, MZ,Wang, XZ,Zhou, YH,&Wang, XZ .(2016).Strain Effect on Critical Current Degradation in Bi-Based Superconducting Tapes With Different Deformation Modes.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,26(4).
MLA	Gao, PF,et al."Strain Effect on Critical Current Degradation in Bi-Based Superconducting Tapes With Different Deformation Modes".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 26.4(2016).