Superconducting properties of MgB2 wires and tapes with different metal sheaths

Y. Feng; G. Yan; Y. Zhao; C. F. Liu; B. Q. Fu; L. Zhou; L. Z. Cao; K. Q. Ruan; X. G. Li; L. Shi; Y. H. Zhang

doi:10.1016/S0921-4534(02)02169-X

Superconducting properties of MgB₂ wires and tapes with different metal sheaths

Y. Feng, G. Yan, Y. Zhao, C. F. Liu, B. Q. Fu, L. Zhou, L. Z. Cao, K. Q. Ruan, X. G. Li, L. Shi, Y. H. Zhang

Research output: Contribution to journal › Conference article › peer-review

17 Scopus citations

Abstract

We have successfully fabricated mono- and multifilamentary MgB₂ wires and tapes with different sheathed metals such as Cu, Ta, NbZr and Fe by the powder-in-tube method. The phase compositions, microstructure features and superconducting properties are investigated by X-ray diffractometer, optical microscopy, SEM, standard four-probe technique and SQUID magnetometer. The results indicate that there is no reaction between the sheathed metals used here except Cu. For the Cu/Ta/MgB₂ wire, the irreversibility field achieves 6.6 T at 5 K and J_c is higher than 10⁵ A/cm² at 5 K in self-field. By using NbZr as a buffer layer, 18-filamentary Cu/MgB₂ tapes show a transport high J_c of 8 × 10⁴ A/cm² (10 K self-field). Remarkably, we prepared the Fe/MgB₂ wire with high transport J_c of 5.6 × 10⁴ A/cm² (15 K, 3 T) and 5.1 × 10⁴ A/cm² (25 K, 2 T). The reasons for the improvement of J_c in high fields were briefly discussed.

Original language	English
Pages (from-to)	598-602
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	386
DOIs	https://doi.org/10.1016/S0921-4534(02)02169-X
State	Published - 15 Apr 2003
Externally published	Yes
Event	ICMC 2002 - Xi an, China Duration: 16 Jun 2002 → 20 Jun 2002

Keywords

Critical current density
MgB superconductors
Superconducting tapes and wires

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10.1016/S0921-4534(02)02169-X

Cite this

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title = "Superconducting properties of MgB2 wires and tapes with different metal sheaths",

abstract = "We have successfully fabricated mono- and multifilamentary MgB2 wires and tapes with different sheathed metals such as Cu, Ta, NbZr and Fe by the powder-in-tube method. The phase compositions, microstructure features and superconducting properties are investigated by X-ray diffractometer, optical microscopy, SEM, standard four-probe technique and SQUID magnetometer. The results indicate that there is no reaction between the sheathed metals used here except Cu. For the Cu/Ta/MgB2 wire, the irreversibility field achieves 6.6 T at 5 K and Jc is higher than 105 A/cm2 at 5 K in self-field. By using NbZr as a buffer layer, 18-filamentary Cu/MgB2 tapes show a transport high Jc of 8 × 104 A/cm2 (10 K self-field). Remarkably, we prepared the Fe/MgB2 wire with high transport Jc of 5.6 × 104 A/cm2 (15 K, 3 T) and 5.1 × 104 A/cm2 (25 K, 2 T). The reasons for the improvement of Jc in high fields were briefly discussed.",

keywords = "Critical current density, MgB superconductors, Superconducting tapes and wires",

author = "Y. Feng and G. Yan and Y. Zhao and Liu, {C. F.} and Fu, {B. Q.} and L. Zhou and Cao, {L. Z.} and Ruan, {K. Q.} and Li, {X. G.} and L. Shi and Zhang, {Y. H.}",

year = "2003",

month = apr,

day = "15",

doi = "10.1016/S0921-4534(02)02169-X",

language = "英语",

volume = "386",

pages = "598--602",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

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

}

TY - JOUR

T1 - Superconducting properties of MgB2 wires and tapes with different metal sheaths

AU - Feng, Y.

AU - Yan, G.

AU - Zhao, Y.

AU - Liu, C. F.

AU - Fu, B. Q.

AU - Zhou, L.

AU - Cao, L. Z.

AU - Ruan, K. Q.

AU - Li, X. G.

AU - Shi, L.

AU - Zhang, Y. H.

PY - 2003/4/15

Y1 - 2003/4/15

N2 - We have successfully fabricated mono- and multifilamentary MgB2 wires and tapes with different sheathed metals such as Cu, Ta, NbZr and Fe by the powder-in-tube method. The phase compositions, microstructure features and superconducting properties are investigated by X-ray diffractometer, optical microscopy, SEM, standard four-probe technique and SQUID magnetometer. The results indicate that there is no reaction between the sheathed metals used here except Cu. For the Cu/Ta/MgB2 wire, the irreversibility field achieves 6.6 T at 5 K and Jc is higher than 105 A/cm2 at 5 K in self-field. By using NbZr as a buffer layer, 18-filamentary Cu/MgB2 tapes show a transport high Jc of 8 × 104 A/cm2 (10 K self-field). Remarkably, we prepared the Fe/MgB2 wire with high transport Jc of 5.6 × 104 A/cm2 (15 K, 3 T) and 5.1 × 104 A/cm2 (25 K, 2 T). The reasons for the improvement of Jc in high fields were briefly discussed.

AB - We have successfully fabricated mono- and multifilamentary MgB2 wires and tapes with different sheathed metals such as Cu, Ta, NbZr and Fe by the powder-in-tube method. The phase compositions, microstructure features and superconducting properties are investigated by X-ray diffractometer, optical microscopy, SEM, standard four-probe technique and SQUID magnetometer. The results indicate that there is no reaction between the sheathed metals used here except Cu. For the Cu/Ta/MgB2 wire, the irreversibility field achieves 6.6 T at 5 K and Jc is higher than 105 A/cm2 at 5 K in self-field. By using NbZr as a buffer layer, 18-filamentary Cu/MgB2 tapes show a transport high Jc of 8 × 104 A/cm2 (10 K self-field). Remarkably, we prepared the Fe/MgB2 wire with high transport Jc of 5.6 × 104 A/cm2 (15 K, 3 T) and 5.1 × 104 A/cm2 (25 K, 2 T). The reasons for the improvement of Jc in high fields were briefly discussed.

KW - Critical current density

KW - MgB superconductors

KW - Superconducting tapes and wires

UR - http://www.scopus.com/inward/record.url?scp=0037445668&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)02169-X

DO - 10.1016/S0921-4534(02)02169-X

M3 - 会议文章

AN - SCOPUS:0037445668

SN - 0921-4534

VL - 386

SP - 598

EP - 602

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 -

Superconducting properties of MgB₂ wires and tapes with different metal sheaths

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