Multi-seeded melt crystallization of YBCO bulk material for cryogenic applications

被引：98

作者：

Schätzle, P ^{[1
]}

Krabbes, G ^{[1
]}

Stöver, G ^{[1
]}

Fuchs, G ^{[1
]}

Schläfer, D ^{[1
]}

机构：

[1] Inst Solid State & Mat Res Dresden, D-01171 Dresden, Germany

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1999年 / 12卷 / 02期

关键词：

D O I：

10.1088/0953-2048/12/2/003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

YBCO bulk materials were crystallized by a multi-seeded melt growth process. Up to four biaxial oriented Sm-123 seeds were placed on the top of rectangular shaped YBCO bars (up to 100 x.40 x 15 mm(3)). The oriented grown single grains are joined by partially coherent grain boundaries with an improved current transport capability and high levitation forces with overall values of 55-65 N. Segregation of nonsuperconducting rest melt and microcracks limit the current transport across the grain boundary.

引用

页码：69 / 76

页数：8

共 18 条

[1]

MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :250-+

[2]

CHERNOV AA, 1976, CURRENT TOPICS MAT S

[3]

High field behavior of artificially engineered boundaries in melt-processed YBa2Cu3O7-δ [J].

Doyle, RA ;

Bradley, AD ;

Lo, W ;

Cardwell, DA ;

Campbell, AM ;

Vanderbemden, P ;

Cloots, R .

APPLIED PHYSICS LETTERS, 1998, 73 (01) :117-119

[4]

Critical current properties and the nature of the electromagnetic coupling in melt-textured YBa2Cu3O6+x bicrystals of general misorientation [J].

Field, MB ;

Larbalestier, DC ;

Parikh, A ;

Salama, K .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 280 (03) :221-233

[5]

In-situ YBa2Cu3Ox growth rate analysis [J].

GautierPicard, P ;

Beaugnon, E ;

Tournier, R .

PHYSICA C, 1997, 276 (1-2) :35-41

[6]

GROWTH-MECHANISM OF YBA2CU3OY SUPERCONDUCTORS PREPARED BY THE HORIZONTAL BRIDGMAN METHOD [J].

IZUMI, T ;

SHIOHARA, Y .

JOURNAL OF MATERIALS RESEARCH, 1992, 7 (01) :16-23

[7]

MODIFIED MELT TEXTURING PROCESS FOR YBCO BASED ON THE POLYTHERMIC SECTION YO1.5-BA0.4CU0.6O IN THE Y-BA-CU-O PHASE-DIAGRAM AT 0.21 BAR OXYGEN-PRESSURE [J].

KRABBES, G ;

SCHATZLE, P ;

BIEGER, W ;

WIESNER, U ;

STOVER, G ;

WU, M ;

STRASSER, T ;

KOHLER, A ;

LITZKENDORF, D ;

FISCHER, K ;

GORNERT, P .

PHYSICA C, 1995, 244 (1-2) :145-152

[8]

KRABBES G, 1994, Z METALLKD, V85, P70

[9]

Thermodynamically controlled melt processing to improve bulk materials [J].

Krabbes, G ;

Schatzle, P ;

Bieger, W ;

Fuchs, G ;

Wiesner, U ;

Stover, G .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1997, 7 (02) :1735-1738

[10]

GROWTH AND POSSIBLE SIZE LIMITATION OF QUALITY SINGLE-GRAIN YBA2CU3O7 [J].

MENG, RL ;

GAO, L ;

GAUTIERPICARD, P ;

RAMIREZ, D ;

SUN, YY ;

CHU, CW .

PHYSICA C, 1994, 232 (3-4) :337-346

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