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

51 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 - https://www.scopus.com/pages/publications/0036146162

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

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

M3 - 文章

AN - SCOPUS:0036146162

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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