Melt-processing of Ag-added LRE-Ba-Cu-O (LRE = Nd, Sm)

被引：38

作者：

Ikuta, H

Ikeda, S

Mase, A

Yoshikawa, M

Yanagi, Y

Itoh, Y

Oka, T

Mizutani, U

机构：

[1] Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Dept Crystalline Mat Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] IMRA Mat R&D Co Ltd, Aichi 4480021, Japan

来源：

APPLIED SUPERCONDUCTIVITY | 1998年 / 6卷 / 2-5期

关键词：

D O I：

10.1016/S0964-1807(98)00091-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large c-axis oriented single-grain samples of LRE-Ba-Cu-O with LRE = Nd and Sm have been prepared by the melt-process in a reduced oxygen atmosphere. We found that adding Ag to the starting materials worked very effectively in order to circumvent the problems which we encountered in the melt-process of large samples. With the c-axis aligning perpendicular to the sample surface, we successfully synthesized single-grained samples which are 18 and 33 mm in diameter for LRE = Nd and Sm, respectively. The strength of the trapped magnetic field at the center of a LRE = Sm sample was 0.96 T at 77 K. This value is approximately one-half larger than a melt-processed Y-Ba-Cu-O with a similar size. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：109 / 117

页数：9

共 19 条

[1] Macrosegregation of Y2Ba1Cu1O5 particles in Y1Ba2Cu3O7-delta crystals grown by an undercooling method [J].

Endo, A ;

Chauhan, HS ;

Egi, T ;

Shiohara, Y .

JOURNAL OF MATERIALS RESEARCH, 1996, 11 (04) :795-803

[2]

GOSHIMA S, 1996, ADV SUPERCONDUCTIVIT, V8, P739

[3]

IKEDA S, 1998, ADV SUPERCONDUCTIVIT, V10, P705

[4] Pulsed field magnetization of melt-processed Y-Ba-Cu-O superconducting bulk magnet [J].

Itoh, Y ;

Mizutani, U .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1996, 35 (4A) :2114-2125

[5] HIGH CRITICAL CURRENTS IN Y-BA-CU-O SUPERCONDUCTORS [J].

JIN, S ;

TIEFEL, TH ;

SHERWOOD, RC ;

DAVIS, ME ;

VANDOVER, RB ;

KAMMLOTT, GW ;

FASTNACHT, RA ;

KEITH, HD .

APPLIED PHYSICS LETTERS, 1988, 52 (24) :2074-2076

[6] TRANSPORT CURRENT-DENSITY IN BULK ORIENTED-GRAINED YBA2CU3OX/SILVER COMPOSITES [J].

LEE, DF ;

CHAUD, X ;

SALAMA, K .

PHYSICA C, 1991, 181 (1-3) :81-87

[7]

Mase A., 1998, Advances in Superconductivity X. Proceedings of the 10th International Symposium, P737

[8]

MATSUOKA S, 1997, ADV SUPERCONDUCTIVIT, V9, P781

[9] GRAIN-GROWTH IN MONOLITHIC YBA2CU3O7 WITH HIGH-JC [J].

MENG, RL ;

SUN, YY ;

HOR, PH ;

CHU, CW .

PHYSICA C, 1991, 179 (1-3) :149-158

[10] TEM AND CRITICAL-CURRENT DENSITY STUDIES OF MELT-TEXTURED YBA2CU3OX WITH SILVER AND Y2BACUO5 ADDITIONS [J].

MIRONOVA, M ;

LEE, DF ;

SALAMA, K .

PHYSICA C, 1993, 211 (1-2) :188-204

← 1 2 →