IMPROVEMENT OF REPRODUCIBILITY OF HIGH TRANSPORT JC FOR BI2SR2CACU2OY/AG TAPES BY CONTROLLING BI CONTENT

被引：40

作者：

SHIMOYAMA, J

TOMITA, N

MORIMOTO, T

KITAGUCHI, H

KUMAKURA, H

TOGANO, K

MAEDA, H

NOMURA, K

SEIDO, M

机构：

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

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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 9B期

关键词：

BI-2212/AG; HIGH JC; HIGH REPRODUCIBILITY; MELT-SOLIDIFICATION; BI2AL4O9;

D O I：

10.1143/JJAP.31.L1328

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new method to obtain high J(c) Bi-2212/Ag tapes with high reproducibility was developed. Melt-solidifying with Bi2Al4O9 is found to be an effective method for suppressing the vaporization of bismuth oxide during the high-temperature heat treatment. By application of this method, the homogeneity of the microstructure of the Bi-2212 layer was improved considerably due to a decrease of the Bi-poor phase, (Sr, Ca)-Cu-O. The reproducibility of J(c) values was also improved corresponding to the microstructure, and J(c) maintained more than 1 x 10(5) A/cm2 at 4.2 K in 7 T even for a 1 m tape.

引用

页码：L1328 / L1331

页数：4

共 5 条

[1] PARTIAL MELT GROWTH-PROCESS OF BI2SR2CA1CU2OX TEXTURED TAPES ON SILVER
KASE, J
TOGANO, K
KUMAKURA, H
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[2] ANISOTROPY OF CRITICAL CURRENT-DENSITY IN TEXTURED BI2SR2CA1CU2OX TAPES
KUMAKURA, H
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KASE, J
MORIMOTO, T
[J]. APPLIED PHYSICS LETTERS, 1991, 58 (24) : 2830 - 2832
[3] 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
[4] SHIMOYAMA J, 1992, JPN J APPL PHYS, V31
[5] SHIMOYAMA J, 1992, ELECTRONIC PROPERTIE

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