PROCESSING AND FABRICATION OF BI2SR2CACU2OY/AG TAPES AND SMALL-SCALE COILS

被引：38

作者：

SHIMOYAMA, JI

KADOWAKI, K

KITAGUCHI, H

KUMAKURA, H

TOGANO, K

MAEDA, H

NOMURA, K

机构：

[1] NATL RES INST MET, TSUKUBA, IBARAKI 305, JAPAN

[2] HITACHI CABLE LTD, ADV RES CTR, TSUCHIURA, IBARAKI 300, JAPAN

来源：

APPLIED SUPERCONDUCTIVITY | 1993年 / 1卷 / 1-2期

关键词：

Dip-coating method - Pancake coils - Small scale coils;

D O I：

10.1016/0964-1807(93)90380-K

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optimization of heat treatment conditions for a Bi2Sr2CaCu2Oy(Bi-2212)/Ag melt-solidified tape was carried out. Effects of the maximum temperature for partial melting, cooling rate in solidifying process, cooling rate after the melt-solidification and partial pressure of oxygen on J(c) were examined. A tape prepared under optimized conditions showed a high J(c) value of 2.4 x 10(5) A/cm2 at 4.2 K in 12 T. Small pancake coils were fabricated using Bi-2212/Ag long tapes prepared by a continuous dip-coating method. The generated field of a coil was higher than 1 T at 4.2 K in bias fields less than 4 T and its critical current remained greater than 200 A even at 20 K under zero bias field. This means that the Bi-2212/Ag coil has sufficient potential for practical use as a superconducting magnet at 20 K.

引用

页码：43 / 51

页数：9

共 6 条

[1] PREPARATION OF THE TEXTURED BI-BASED OXIDE TAPES BY PARTIAL MELTING PROCESS
KASE, J
MORIMOTO, T
TOGANO, K
KUMAKURA, H
DIETDERICH, DR
MAEDA, H
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) : 1254 - 1257
[2] PARTIAL MELT GROWTH-PROCESS OF BI2SR2CA1CU2OX TEXTURED TAPES ON SILVER
KASE, J
TOGANO, K
KUMAKURA, H
DIETDERICH, DR
IRISAWA, N
MORIMOTO, T
MAEDA, H
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (07): : L1096 - L1099
[3] OXYGEN NONSTOICHIOMETRY AND PHASE INSTABILITY OF BI2SR2CACU2O8+DELTA
SHIMOYAMA, J
KASE, J
MORIMOTO, T
MIZUSAKI, J
TAGAWA, H
[J]. PHYSICA C, 1991, 185 : 931 - 932
[4] FABRICATION OF A BI-2212/AG PANCAKE COIL GENERATING 6000-G AT 4.2-K IN 12-T
SHIMOYAMA, J
MORIMOTO, T
KITAGUCHI, H
KUMAKURA, H
TOGANO, K
MAEDA, H
NOMURA, K
SEIDO, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1992, 31 (2B): : L163 - L165
[5] Shimoyama J., 1992, Electronic Properties and Mechanisms of High Tc Superconductors. Proceedings of the International Workshop, P277
[6] TOGANO K, IN PRESS P ICMC 91 H

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