Transport critical-current characteristics of (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed pressed and rolled tapes

Yuping Sun; Jiaju Du; Zi Lu; Guoyang Xu; Yuheng Zhang; Zhenzhong Duan; Xiande Tang; Zhengping Xi; Lian Zhou

doi:10.1063/1.113504

Transport critical-current characteristics of (Bi,Pb)₂Sr₂Ca₂Cu₃O_x silver-sheathed pressed and rolled tapes

Yuping Sun, Jiaju Du, Zi Lu, Guoyang Xu, Yuheng Zhang, Zhenzhong Duan, Xiande Tang, Zhengping Xi, Lian Zhou

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Abstract

We have measured the dependence of the transport critical-current density on magnetic fields and temperatures close to T_c of high-J_c Bi(2223) Ag-sheathed pressed (J_c=2.1×10⁴ A/cm², 77 K, 0 T) and cold rolled tapes (J_c=1.8×10⁴ A/cm², 77 K, 0 T). It is found that the transport critical current of the two kinds of tapes follows the relation J_c=J_co (1-αT+βT²). The results can be explained according to the thermally activated flux creep model. The dependence of J_c on H for two kinds of tapes is compared as H is parallel and perpendicular to the tape surface. It is found that the cold rolled tapes have a weaker field dependence of J_c for the H_⊥ tape surface at higher fields (>0.2 T). The difference of J_c(H) between the pressed and cold rolled tapes seems to originate from the difference in their microstructure defects.

Original language	English
Pages (from-to)	2570
Number of pages	1
Journal	Applied Physics Letters
DOIs	https://doi.org/10.1063/1.113504
State	Published - 1995
Externally published	Yes

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@article{bcee61d7982140d5992fb3d8d1d59686,

title = "Transport critical-current characteristics of (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed pressed and rolled tapes",

abstract = "We have measured the dependence of the transport critical-current density on magnetic fields and temperatures close to Tc of high-Jc Bi(2223) Ag-sheathed pressed (Jc=2.1×104 A/cm2, 77 K, 0 T) and cold rolled tapes (Jc=1.8×104 A/cm2, 77 K, 0 T). It is found that the transport critical current of the two kinds of tapes follows the relation Jc=Jco (1-αT+βT2). The results can be explained according to the thermally activated flux creep model. The dependence of Jc on H for two kinds of tapes is compared as H is parallel and perpendicular to the tape surface. It is found that the cold rolled tapes have a weaker field dependence of Jc for the H⊥ tape surface at higher fields (>0.2 T). The difference of Jc(H) between the pressed and cold rolled tapes seems to originate from the difference in their microstructure defects.",

author = "Yuping Sun and Jiaju Du and Zi Lu and Guoyang Xu and Yuheng Zhang and Zhenzhong Duan and Xiande Tang and Zhengping Xi and Lian Zhou",

year = "1995",

doi = "10.1063/1.113504",

language = "英语",

pages = "2570",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

}

TY - JOUR

T1 - Transport critical-current characteristics of (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed pressed and rolled tapes

AU - Sun, Yuping

AU - Du, Jiaju

AU - Lu, Zi

AU - Xu, Guoyang

AU - Zhang, Yuheng

AU - Duan, Zhenzhong

AU - Tang, Xiande

AU - Xi, Zhengping

AU - Zhou, Lian

PY - 1995

Y1 - 1995

N2 - We have measured the dependence of the transport critical-current density on magnetic fields and temperatures close to Tc of high-Jc Bi(2223) Ag-sheathed pressed (Jc=2.1×104 A/cm2, 77 K, 0 T) and cold rolled tapes (Jc=1.8×104 A/cm2, 77 K, 0 T). It is found that the transport critical current of the two kinds of tapes follows the relation Jc=Jco (1-αT+βT2). The results can be explained according to the thermally activated flux creep model. The dependence of Jc on H for two kinds of tapes is compared as H is parallel and perpendicular to the tape surface. It is found that the cold rolled tapes have a weaker field dependence of Jc for the H⊥ tape surface at higher fields (>0.2 T). The difference of Jc(H) between the pressed and cold rolled tapes seems to originate from the difference in their microstructure defects.

AB - We have measured the dependence of the transport critical-current density on magnetic fields and temperatures close to Tc of high-Jc Bi(2223) Ag-sheathed pressed (Jc=2.1×104 A/cm2, 77 K, 0 T) and cold rolled tapes (Jc=1.8×104 A/cm2, 77 K, 0 T). It is found that the transport critical current of the two kinds of tapes follows the relation Jc=Jco (1-αT+βT2). The results can be explained according to the thermally activated flux creep model. The dependence of Jc on H for two kinds of tapes is compared as H is parallel and perpendicular to the tape surface. It is found that the cold rolled tapes have a weaker field dependence of Jc for the H⊥ tape surface at higher fields (>0.2 T). The difference of Jc(H) between the pressed and cold rolled tapes seems to originate from the difference in their microstructure defects.

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U2 - 10.1063/1.113504

DO - 10.1063/1.113504

M3 - 文章

AN - SCOPUS:36449008467

SN - 0003-6951

SP - 2570

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Transport critical-current characteristics of (Bi,Pb)₂Sr₂Ca₂Cu₃O_x silver-sheathed pressed and rolled tapes

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