PARTIAL MELT GROWTH-PROCESS OF BI2SR2CA1CU2OX TEXTURED TAPES ON SILVER

被引：176

作者：

KASE, J ^{[1
]}

TOGANO, K ^{[1
]}

KUMAKURA, H ^{[1
]}

DIETDERICH, DR ^{[1
]}

IRISAWA, N ^{[1
]}

MORIMOTO, T ^{[1
]}

MAEDA, H ^{[1
]}

机构：

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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 07期

关键词：

Bi-sr-ca-cu-o; Critical current density; Doctor-blade; High magnetic fields; Melt growth process; Superconducting tape;

D O I：

10.1143/JJAP.29.L1096

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi2Sr2Ca1Cu2Ox textured tapes with an excellent Jc were synthesized by doctor-blade casting and a melt process. Green tape was laid on a silver foil and oxide/silver composite tape was heat treated. A highly textured microstructure was formed by slow cooling from 890°C to 870°C with the oxide in a partially melted state. The highest Tc and Jc (77 K, 0 T), 89 K and 1.3×104 A/cm2, respectively, were obtained by quenching from 870°C. However, Jc at 4.2 K was higher for the sample slowly cooled to room temperature and reached 1.4×105 A/cm2 at 25 T. These results indicate the potential for the practical application of Bi-based oxide superconductors at both 77 K and 4.2 K. © 1990 The Japan Society of Applied Physics.

引用

页码：L1096 / L1099

页数：4

共 12 条

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