Fabrication and superconducting properties of MgB2 composite wires by the PIT method

Y. Feng; Y. Zhao; A. K. Pradhan; L. Zhou; P. X. Zhang; X. H. Liu; P. Ji; S. J. Du; C. F. Liu; Y. Wu; N. Koshizuka

doi:10.1088/0953-2048/15/1/303

Fabrication and superconducting properties of MgB₂ composite wires by the PIT method

Y. Feng, Y. Zhao, A. K. Pradhan, L. Zhou, P. X. Zhang, X. H. Liu, P. Ji, S. J. Du, C. F. Liu, Y. Wu, N. Koshizuka

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Dense MgB₂/Cu wires with Ta as a buffer layer were successfully fabricated by the powder-in-tube (PIT) method. The microstructure was investigated by optical microscopy. Magnetization measurements were carded out by using a superconducting quantum interference device (SQUID) magnetometer at magnetic fields up to 7 T from 5 K to 35 K. The transition temperature of the MgB₂ wire is around 38.4 K and the irreversibility field is 6.6 T at 5 K. The critical current density as high as 10⁵ A cm^-2 (5 K, self-field) and 10⁴ A cm^-2 (20 K, 1 T) has been obtained. The results suggest that the powder-in-tube (PIT) process is promising in preparing high-quality MgB₂ wires.

Original language	English
Pages (from-to)	12-15
Number of pages	4
Journal	Superconductor Science and Technology
Volume	15
Issue number	1
DOIs	https://doi.org/10.1088/0953-2048/15/1/303
State	Published - Jan 2002
Externally published	Yes

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title = "Fabrication and superconducting properties of MgB2 composite wires by the PIT method",

abstract = "Dense MgB2/Cu wires with Ta as a buffer layer were successfully fabricated by the powder-in-tube (PIT) method. The microstructure was investigated by optical microscopy. Magnetization measurements were carded out by using a superconducting quantum interference device (SQUID) magnetometer at magnetic fields up to 7 T from 5 K to 35 K. The transition temperature of the MgB2 wire is around 38.4 K and the irreversibility field is 6.6 T at 5 K. The critical current density as high as 105 A cm-2 (5 K, self-field) and 104 A cm-2 (20 K, 1 T) has been obtained. The results suggest that the powder-in-tube (PIT) process is promising in preparing high-quality MgB2 wires.",

author = "Y. Feng and Y. Zhao and Pradhan, {A. K.} and L. Zhou and Zhang, {P. X.} and Liu, {X. H.} and P. Ji and Du, {S. J.} and Liu, {C. F.} and Y. Wu and N. Koshizuka",

year = "2002",

month = jan,

doi = "10.1088/0953-2048/15/1/303",

language = "英语",

volume = "15",

pages = "12--15",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing Ltd.",

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TY - JOUR

T1 - Fabrication and superconducting properties of MgB2 composite wires by the PIT method

AU - Feng, Y.

AU - Zhao, Y.

AU - Pradhan, A. K.

AU - Zhou, L.

AU - Zhang, P. X.

AU - Liu, X. H.

AU - Ji, P.

AU - Du, S. J.

AU - Liu, C. F.

AU - Wu, Y.

AU - Koshizuka, N.

PY - 2002/1

Y1 - 2002/1

N2 - Dense MgB2/Cu wires with Ta as a buffer layer were successfully fabricated by the powder-in-tube (PIT) method. The microstructure was investigated by optical microscopy. Magnetization measurements were carded out by using a superconducting quantum interference device (SQUID) magnetometer at magnetic fields up to 7 T from 5 K to 35 K. The transition temperature of the MgB2 wire is around 38.4 K and the irreversibility field is 6.6 T at 5 K. The critical current density as high as 105 A cm-2 (5 K, self-field) and 104 A cm-2 (20 K, 1 T) has been obtained. The results suggest that the powder-in-tube (PIT) process is promising in preparing high-quality MgB2 wires.

AB - Dense MgB2/Cu wires with Ta as a buffer layer were successfully fabricated by the powder-in-tube (PIT) method. The microstructure was investigated by optical microscopy. Magnetization measurements were carded out by using a superconducting quantum interference device (SQUID) magnetometer at magnetic fields up to 7 T from 5 K to 35 K. The transition temperature of the MgB2 wire is around 38.4 K and the irreversibility field is 6.6 T at 5 K. The critical current density as high as 105 A cm-2 (5 K, self-field) and 104 A cm-2 (20 K, 1 T) has been obtained. The results suggest that the powder-in-tube (PIT) process is promising in preparing high-quality MgB2 wires.

UR - http://www.scopus.com/inward/record.url?scp=0036146162&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/15/1/303

DO - 10.1088/0953-2048/15/1/303

M3 - 文章

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SN - 0953-2048

VL - 15

SP - 12

EP - 15

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 1

ER -

Fabrication and superconducting properties of MgB₂ composite wires by the PIT method

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