Bi-2223 bar current leads fabricated by the combination of cold isostatic pressing and hot-pressing

被引：15

作者：

Fu, XK ^{[1
]}

Rouessac, V ^{[1
]}

Guo, YC ^{[1
]}

Mikheenko, PN ^{[1
]}

Liu, HK ^{[1
]}

Dou, SX ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia

来源：

PHYSICA C | 1999年 / 320卷 / 3-4期

基金：

澳大利亚研究理事会;

关键词：

Bi-2223; cold isostatic pressing; hot-pressing;

D O I：

10.1016/S0921-4534(99)00343-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new method using a combination of cold isostatic pressing (CIP) and hot-pressing (HP) was applied to fabricate Bi-2223 bar current leads. The critical current density (J(c)) achieved by this method reached as high as 1000 A/cm(2) at 77 K and self-generated magnetic field. This value of J(c) presented here is much higher than the best J(c) reported for rod current leads which is 570 A/cm(2) achieved by CIP technique [Y. Yamada, Bi-based bulk current leads and their applications, in: H. Meads, K. Togano (Eds.), Bismuth-based High-temperature Superconductors, 1996, p. 277.]. The phases and microstructures were analysed by XRD and SEM. The texture and weak link were studied by pole figures and AC susceptibility, respectively. The results show that the grain connectivity, matrix density and texture of the samples were improved significantly by this method. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：183 / 188

页数：6

共 10 条

[1]

BOCK J, 1963, P 5 INT S SUP ISS 92, V5, P643

[2] Frequency dependence of the intergranular AC loss peak in a high-Tc Bi-(Pb)-Sr-Ca-Cu-O bulk superconductor [J].

Çelebi, S ;

Karaca, I ;

Aksu, E ;

Gencer, A .

PHYSICA C, 1998, 309 (1-2) :131-137

[3] HIGH-TEMPERATURE SUPERCONDUCTING CURRENT LEADS FOR CRYOGENIC APPLICATIONS IN MODERATE MAGNETIC-FIELDS [J].

DORRI, B ;

HERD, K ;

LASKARIS, ET ;

TKACZYK, JE ;

LAY, KW .

IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) :1858-1860

[4]

FLUKIGER R, 1996, BISMUTH BASED HIGH T, P361

[5] HIGH-TEMPERATURE SUPERCONDUCTING CURRENT LEADS [J].

Hull, John R. .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :869-875

[6]

MAZAKI H, 1991, MAGNETIC SUSCEPTIBILITY OF SUPERCONDUCTORS AND OTHER SPIN SYSTEMS, P333

[7] Properties of superconducting Bi-2223 tubular current leads [J].

Plechacek, V ;

Hejtmanek, J .

PHYSICA C, 1997, 282 :2577-2578

[8] Influence of the secondary phases and post-annealing on the transport current density of sinter-forged (Bi, Pb)-2223 ceramics [J].

Rouessac, V ;

Poullain, G ;

Provost, J ;

Gomina, M ;

Desgardin, G .

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 1998, 2 (02) :145-149

[9] DESIGN AND TESTING OF A HIGH-TEMPERATURE SUPERCONDUCTING CURRENT LEAD [J].

WU, JL ;

DEDERER, JT ;

HULL, JR ;

POEPPEL, RB ;

YOUNGDAHL, CA ;

ECKELS, PW ;

SINGH, SK ;

SINGH, JP ;

LANAGAN, MT ;

BALACHANDRAN, U .

IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) :1861-1865

[10]

YAMADA Y, 1996, BISMUTH BASED HIGH T, P277

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