Fabrication and microstructure of large grain Nd-Ba-Cu-O

被引：14

作者：

Babu, NH ^{[1
]}

Lo, W ^{[1
]}

Cardwell, DA ^{[1
]}

Shi, YH ^{[1
]}

机构：

[1] Univ Cambridge, Irc Superconduct, Cambridge CB3 0HE, England

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2000年 / 13卷 / 05期

关键词：

D O I：

10.1088/0953-2048/13/5/307

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Large, single grain Nd-Ba-Cu-O (NdBCO) has been successfully fabricated using a top-seeded melt growth technique under reduced oxygen partial pressure. We report a study of the grain growth rate within the temperature range for which heterogeneous nucleation can be achieved in this system and investigate the variation in size, morphology and spatial distribution of Nd-422 phase inclusions in the Nd-123 matrix with Nd-422 phase inclusion concentration. The influence of Nd-422 phase particles on the growth rate, pores and macrocrack formation is also studied.

引用

页码：468 / 472

页数：5

共 7 条

[1] Bulk high temperature superconductors for magnet applications [J].

Campbell, AM ;

Cardwell, DA .

CRYOGENICS, 1997, 37 (10) :567-575

[2] Processing and properties of large grain (RE)BCO [J].

Cardwell, DA .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1998, 53 (1-2) :1-10

[3] SEMISOLID SOLIDIFICATION OF HIGH-TEMPERATURE SUPERCONDUCTING OXIDES [J].

CIMA, MJ ;

FLEMINGS, MC ;

FIGUEREDO, AM ;

NAKADE, M ;

ISHII, H ;

BRODY, HD ;

HAGGERTY, JS .

JOURNAL OF APPLIED PHYSICS, 1992, 72 (01) :179-190

[4] Relationship between growth rate and undercooling in Pt-added Y1Ba2Cu3O7-x [J].

Endo, A ;

Chauhan, HS ;

Nakamura, Y ;

Shiohara, Y .

JOURNAL OF MATERIALS RESEARCH, 1996, 11 (05) :1114-1119

[5] WETTING BETWEEN PROSPECTIVE CRUCIBLE MATERIALS AND THE BA-CU-O MELT [J].

KRAUNS, C ;

TAGAMI, M ;

YAMADA, Y ;

NAKAMURA, M ;

SHIOHARA, Y .

JOURNAL OF MATERIALS RESEARCH, 1994, 9 (06) :1513-1518

[6] PROCESSING OF BULK YBA2CU3O7-DELTA CERAMICS PRIOR TO PERITECTIC SOLIDIFICATION [J].

LO, W ;

CARDWELL, DA ;

DUNG, SL ;

BARTER, RG .

JOURNAL OF MATERIALS SCIENCE, 1995, 30 (16) :3995-4002

[7] MELT PROCESSING FOR OBTAINING NDBA2CU3OY SUPERCONDUCTORS WITH HIGH-TC AND LARGE JC [J].

YOO, SI ;

SAKAI, N ;

TAKAICHI, H ;

HIGUCHI, T ;

MURAKAMI, M .

APPLIED PHYSICS LETTERS, 1994, 65 (05) :633-635

← 1 →