Preparation and transport Jc(B) properties of Fe-clad MgB2 wires

G. Yan; B. Q. Fu; Y. Feng; C. F. Liu; P. Ji; X. Z. Wu; L. Zhou; L. Z. Cao; K. Q. Ruan; X. G. Li

doi:10.1016/S0921-4534(02)02171-8

Preparation and transport J_c(B) properties of Fe-clad MgB₂ wires

G. Yan, B. Q. Fu, Y. Feng, C. F. Liu, P. Ji, X. Z. Wu, L. Zhou, L. Z. Cao, K. Q. Ruan, X. G. Li

科研成果: 期刊稿件 › 会议文章 › 同行评审

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摘要

Long dense MgB₂ wires were successfully fabricated through the in situ powder-in-tube method by using steel sheath with low carbon content. Short samples of MgB₂/Fe wires were sintered at 650-850 °C for 2-5 h in argon. Critical current density (J_c) of the wires was measured in the temperature range of 4.2-30 K in the magnetic field up to 3 T by standard four probe method. High J_c values of 1.3 × 10⁵ A/cm² in self-field and 7.5 × 10⁴ A/cm² in 1 T at 15 K were obtained for MgB₂/Fe wires. The microstructure observation for MgB₂ wires shows that no reaction between Fe and MgB₂ was found and MgB₂/Fe wires have better grain connectivity and higher density than MgB₂ bulk samples. The grain connectivity in wires is better than MgB₂ bulk samples. The results indicate that the J_c can be further improved to meet the requirement for applications by optimizing the process conditions.

源语言	英语
页（从-至）	607-610
页数	4
期刊	Physica C: Superconductivity and its Applications
卷	386
DOI	https://doi.org/10.1016/S0921-4534(02)02171-8
出版状态	已出版 - 15 4月 2003
已对外发布	是
活动	ICMC 2002 - Xi an, 中国期限: 16 6月 2002 → 20 6月 2002

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@article{aabfeea41ae94165a379974be9f90e38,

title = "Preparation and transport Jc(B) properties of Fe-clad MgB2 wires",

abstract = "Long dense MgB2 wires were successfully fabricated through the in situ powder-in-tube method by using steel sheath with low carbon content. Short samples of MgB2/Fe wires were sintered at 650-850 °C for 2-5 h in argon. Critical current density (Jc) of the wires was measured in the temperature range of 4.2-30 K in the magnetic field up to 3 T by standard four probe method. High Jc values of 1.3 × 105 A/cm2 in self-field and 7.5 × 104 A/cm2 in 1 T at 15 K were obtained for MgB2/Fe wires. The microstructure observation for MgB2 wires shows that no reaction between Fe and MgB2 was found and MgB2/Fe wires have better grain connectivity and higher density than MgB2 bulk samples. The grain connectivity in wires is better than MgB2 bulk samples. The results indicate that the Jc can be further improved to meet the requirement for applications by optimizing the process conditions.",

keywords = "In situ fabrication, MgB, Transport J, Wire",

author = "G. Yan and Fu, {B. Q.} and Y. Feng and Liu, {C. F.} and P. Ji and Wu, {X. Z.} and L. Zhou and Cao, {L. Z.} and Ruan, {K. Q.} and Li, {X. G.}",

year = "2003",

month = apr,

day = "15",

doi = "10.1016/S0921-4534(02)02171-8",

language = "英语",

volume = "386",

pages = "607--610",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

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note = "ICMC 2002 ; Conference date: 16-06-2002 Through 20-06-2002",

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TY - JOUR

T1 - Preparation and transport Jc(B) properties of Fe-clad MgB2 wires

AU - Yan, G.

AU - Fu, B. Q.

AU - Feng, Y.

AU - Liu, C. F.

AU - Ji, P.

AU - Wu, X. Z.

AU - Zhou, L.

AU - Cao, L. Z.

AU - Ruan, K. Q.

AU - Li, X. G.

PY - 2003/4/15

Y1 - 2003/4/15

N2 - Long dense MgB2 wires were successfully fabricated through the in situ powder-in-tube method by using steel sheath with low carbon content. Short samples of MgB2/Fe wires were sintered at 650-850 °C for 2-5 h in argon. Critical current density (Jc) of the wires was measured in the temperature range of 4.2-30 K in the magnetic field up to 3 T by standard four probe method. High Jc values of 1.3 × 105 A/cm2 in self-field and 7.5 × 104 A/cm2 in 1 T at 15 K were obtained for MgB2/Fe wires. The microstructure observation for MgB2 wires shows that no reaction between Fe and MgB2 was found and MgB2/Fe wires have better grain connectivity and higher density than MgB2 bulk samples. The grain connectivity in wires is better than MgB2 bulk samples. The results indicate that the Jc can be further improved to meet the requirement for applications by optimizing the process conditions.

AB - Long dense MgB2 wires were successfully fabricated through the in situ powder-in-tube method by using steel sheath with low carbon content. Short samples of MgB2/Fe wires were sintered at 650-850 °C for 2-5 h in argon. Critical current density (Jc) of the wires was measured in the temperature range of 4.2-30 K in the magnetic field up to 3 T by standard four probe method. High Jc values of 1.3 × 105 A/cm2 in self-field and 7.5 × 104 A/cm2 in 1 T at 15 K were obtained for MgB2/Fe wires. The microstructure observation for MgB2 wires shows that no reaction between Fe and MgB2 was found and MgB2/Fe wires have better grain connectivity and higher density than MgB2 bulk samples. The grain connectivity in wires is better than MgB2 bulk samples. The results indicate that the Jc can be further improved to meet the requirement for applications by optimizing the process conditions.

KW - In situ fabrication

KW - MgB

KW - Transport J

KW - Wire

UR - http://www.scopus.com/inward/record.url?scp=0037445650&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)02171-8

DO - 10.1016/S0921-4534(02)02171-8

M3 - 会议文章

AN - SCOPUS:0037445650

SN - 0921-4534

VL - 386

SP - 607

EP - 610

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

T2 - ICMC 2002

Y2 - 16 June 2002 through 20 June 2002

ER -

Preparation and transport Jc(B) properties of Fe-clad MgB2 wires

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Preparation and transport J_c(B) properties of Fe-clad MgB₂ wires