PRODUCTION OF A SUPERCONDUCTING BI-PB-SR-CA-CU OXIDE WIRE USING A HOT-EXTRUSION PROCESS

被引：8

作者：

MATSUZAKI, K

TORII, S

INOUE, A

MASUMOTO, T

机构：

[1] Institute for Materials Research, Tohoku University, Sendai

来源：

MATERIALS LETTERS | 1991年 / 10卷 / 11-12期

关键词：

D O I：

10.1016/0167-577X(91)90212-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Bi1.84Pb0.34 Sr2Ca2Cu3Oy sample, sheathed with Ag, was hot-extruded into a wire with a high reduction ratio of 91% in area. The c axis of the extruded oxide was normal to the extrusion direction. Subsequent swaging and rolling at room temperature and annealing for 200 h at 1113 K in air resulted in a high-T(c) superconducting composite tape exhibiting a J(c) value of 5900 A/cm2 at 77 K in zero applied field. The hot-extrusion process is useful as the first deformation process to produce the superconducting oxide tape with a favorable orientation structure.

引用

页码：485 / 488

页数：4

共 5 条

[1] CRITICAL CURRENT-DENSITY IN SUPERCONDUCTING BI-PB-SR-CA-CU-O WIRES AND COILS [J].