High transport critical current in MgB2/Fe wire by in situ powder-in-tube process

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

doi:10.1016/S0921-4534(03)00858-X

High transport critical current in MgB₂/Fe wire by in situ powder-in-tube process

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

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

24 Scopus citations

Abstract

MgB₂/Fe wires and MgB₂/Ta/Cu wires were prepared through the in situ powder-in-tube method by using Mg and B powders at ambient pressure. The phase compositions, microstructural features are investigated by X-ray diffraction and scanning electron microscope. The transport critical current properties are measured by the standard four-probe technique. It is found that no impurity phase is formed in MgB₂/Fe wire. At the same time, there are almost no reaction between iron and magnesium according to the results of X-ray diffraction analyses. In addition, it is found that MgB ₂ grains in Fe clad are fined by comparing the micrograph of Fe-clad wire and Ta-clad wire. The high transport critical current density (J _c) of 6.0 × 10⁴ A/cm² (5 K, 4 T) and 5.2 × 10³ A/cm² (15 K, 6 T) are obtained in the MgB ₂/Fe wire.

Original language	English
Pages (from-to)	1035-1038
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	392-396
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(03)00858-X
State	Published - Oct 2003
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 11 Nov 2002 → 13 Nov 2002

Keywords

MgB
Powder-in-tube method
Transport critical current density
Wire

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10.1016/S0921-4534(03)00858-X

Cite this

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title = "High transport critical current in MgB2/Fe wire by in situ powder-in-tube process",

abstract = "MgB2/Fe wires and MgB2/Ta/Cu wires were prepared through the in situ powder-in-tube method by using Mg and B powders at ambient pressure. The phase compositions, microstructural features are investigated by X-ray diffraction and scanning electron microscope. The transport critical current properties are measured by the standard four-probe technique. It is found that no impurity phase is formed in MgB2/Fe wire. At the same time, there are almost no reaction between iron and magnesium according to the results of X-ray diffraction analyses. In addition, it is found that MgB 2 grains in Fe clad are fined by comparing the micrograph of Fe-clad wire and Ta-clad wire. The high transport critical current density (J c) of 6.0 × 104 A/cm2 (5 K, 4 T) and 5.2 × 103 A/cm2 (15 K, 6 T) are obtained in the MgB 2/Fe wire.",

keywords = "MgB, Powder-in-tube method, Transport critical current density, Wire",

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

year = "2003",

month = oct,

doi = "10.1016/S0921-4534(03)00858-X",

language = "英语",

volume = "392-396",

pages = "1035--1038",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "PART 2",

note = "Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

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TY - JOUR

T1 - High transport critical current in MgB2/Fe wire by in situ powder-in-tube process

AU - Fu, B. Q.

AU - Feng, Y.

AU - Yan, G.

AU - Liu, C. F.

AU - Zhou, L.

AU - Cao, L. Z.

AU - Ruan, K. Q.

AU - Li, X. G.

PY - 2003/10

Y1 - 2003/10

N2 - MgB2/Fe wires and MgB2/Ta/Cu wires were prepared through the in situ powder-in-tube method by using Mg and B powders at ambient pressure. The phase compositions, microstructural features are investigated by X-ray diffraction and scanning electron microscope. The transport critical current properties are measured by the standard four-probe technique. It is found that no impurity phase is formed in MgB2/Fe wire. At the same time, there are almost no reaction between iron and magnesium according to the results of X-ray diffraction analyses. In addition, it is found that MgB 2 grains in Fe clad are fined by comparing the micrograph of Fe-clad wire and Ta-clad wire. The high transport critical current density (J c) of 6.0 × 104 A/cm2 (5 K, 4 T) and 5.2 × 103 A/cm2 (15 K, 6 T) are obtained in the MgB 2/Fe wire.

AB - MgB2/Fe wires and MgB2/Ta/Cu wires were prepared through the in situ powder-in-tube method by using Mg and B powders at ambient pressure. The phase compositions, microstructural features are investigated by X-ray diffraction and scanning electron microscope. The transport critical current properties are measured by the standard four-probe technique. It is found that no impurity phase is formed in MgB2/Fe wire. At the same time, there are almost no reaction between iron and magnesium according to the results of X-ray diffraction analyses. In addition, it is found that MgB 2 grains in Fe clad are fined by comparing the micrograph of Fe-clad wire and Ta-clad wire. The high transport critical current density (J c) of 6.0 × 104 A/cm2 (5 K, 4 T) and 5.2 × 103 A/cm2 (15 K, 6 T) are obtained in the MgB 2/Fe wire.

KW - MgB

KW - Powder-in-tube method

KW - Transport critical current density

KW - Wire

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U2 - 10.1016/S0921-4534(03)00858-X

DO - 10.1016/S0921-4534(03)00858-X

M3 - 会议文章

AN - SCOPUS:0043192793

SN - 0921-4534

VL - 392-396

SP - 1035

EP - 1038

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 2

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -

High transport critical current in MgB₂/Fe wire by in situ powder-in-tube process

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Keywords

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