OPTIMIZATION OF TEXTURING PROCESS BY HOT-PRESSING OF BI-PB-SR-CA-CU-O (2223) CERAMICS

被引：40

作者：

NOUDEM, JG ^{[1
]}

BEILLE, J ^{[1
]}

BOURGAULT, D ^{[1
]}

SULPICE, A ^{[1
]}

TOURNIER, R ^{[1
]}

机构：

[1] CNRS,LAB LOUIS NEEL,F-38042 GRENOBLE 09,FRANCE

来源：

PHYSICA C | 1994年 / 230卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90444-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have optimized a texturing process of Bi-Pb-Sr-Ca-Cu-O (2223) superconducting ceramics by hot pressing. The Hoechst precursor powder has been first pressurized at 1 GPa and then heated under uniaxial stress up to 35 MPa, just below the melting temperature between 850 degrees C and 857 degrees C. We have obtained large textured samples having critical transport current densities J(c) as large as 2500 A/cm(2). In this work, we have optimized the stress value as well as the temperature treatment on the basis of characterizations such as magnetization and electrical-transport measurements.

引用

页码：42 / 50

页数：9

共 32 条

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