INFLUENCE OF THE CAPB RATIO ON THE SUPERCONDUCTING PROPERTIES OF BI-BASED CERAMICS OF TYPE-2223

被引：1

作者：

RENTSCHLER, T ^{[1
]}

SCHULZ, C ^{[1
]}

ZOLLER, P ^{[1
]}

LOSCH, S ^{[1
]}

RAFF, E ^{[1
]}

WISCHERT, W ^{[1
]}

KEMMLERSACK, S ^{[1
]}

KESSLER, P ^{[1
]}

LICHTE, H ^{[1
]}

NISSEL, T ^{[1
]}

HUEBENER, RP ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST PHYS,LEHRSTUHL EXPTL PHYS 2,D-72076 TUBINGEN,GERMANY

来源：

ANNALEN DER PHYSIK | 1994年 / 3卷 / 02期

关键词：

SUPERCONDUCTIVITY; BI-CUPRATES; MAGNETIC PROPERTIES;

D O I：

10.1002/andp.19945060202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From a study of the influence of the Ca:Pb ratio on the superconducting properties of Bi-based ceramics of 2223 type it follows that as a second parameter the employed gas atmosphere must be taken into consideration. In case of air preparation good intragrain and intergrain properties are obtained for Ca rich samples (e.g. Bi1.8Pb0.2Sr1.9Ca2.1Cu3Oz); whereas for Pb rich materials (e.g. Bi1.7Pb0.5Sr1.9Ca1.9Cu3Oz) improved conditions are encountered by employment of an Ar/O2 (8%) atmosphere during synthesis. Independently, the transition temperature is situated near 108 K.

引用

页码：71 / 76

页数：6

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