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

被引：49

作者：

Feng, Y

Zhao, Y

Pradhan, AK

Zhou, L

Zhang, PX

Liu, XH

Ji, P

Du, SJ

Liu, CF

Wu, Y

Koshizuka, N

机构：

[1] NW Inst Nonferrous Met Res, Xian 710016, Peoples R China

[2] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan

[3] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[4] Univ Virginia, Jesse W Beams Lab, Charlottesville, VA 22901 USA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2002年 / 15卷 / 01期

关键词：

D O I：

10.1088/0953-2048/15/1/303

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 carried 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 10(5) A cm(-2) (5 K, self-field) and 10(4) 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.

引用

页码：12 / 15

页数：4

共 19 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[2] Boron isotope effect in superconducting MgB2 [J].

Bud'ko, SL ;

Lapertot, G ;

Petrovic, C ;

Cunningham, CE ;

Anderson, N ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 2001, 86 (09) :1877-1880

[3] Enhancement of the high-magnetic field critical current density of superconducting MgB2 by proton irradiation [J].

Bugoslavsky, Y ;

Cohen, LF ;

Perkins, GK ;

Polichetti, M ;

Tate, TJ ;

Gwilliam, R ;

Caplin, AD .

NATURE, 2001, 411 (6837) :561-563

[4] Superconductivity in dense MgB2 wires [J].

Canfield, PC ;

Finnemore, DK ;

Bud'ko, SL ;

Ostenson, JE ;

Lapertot, G ;

Cunningham, CE ;

Petrovic, C .

PHYSICAL REVIEW LETTERS, 2001, 86 (11) :2423-2426

[5]

CHEN X, UNPUB

[6]

EOM CB, 2001, CONDMAT0103425

[7] Thermodynamic and transport properties of superconducting Mg10B2 [J].

Finnemore, DK ;

Ostenson, JE ;

Bud'ko, SL ;

Lapertot, G ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 2001, 86 (11) :2420-2422

[8] Superconductivity of powder-in-tube MgB2 wires [J].

Glowacki, BA ;

Majoros, M ;

Vickers, M ;

Evetts, JE ;

Shi, Y ;

McDougall, I .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2001, 14 (04) :193-199

[9]

GRASSO G, 2001, CONDMAT0103563

[10] Prominent bulk pinning effect in the MgB2 superconductor -: art. no. 012511 [J].

Kim, MS ;

Jung, CU ;

Park, MS ;

Lee, SY ;

Kim, KHP ;

Kang, WN ;

Lee, SI .

PHYSICAL REVIEW B, 2001, 64 (01)

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