首页   按字顺浏览 期刊浏览 卷期浏览 Influence of the Ca:Pb ratio on the superconducting properties of Bi‐based ceramics of ...
Influence of the Ca:Pb ratio on the superconducting properties of Bi‐based ceramics of type 2223

 

作者: T. Rentschler,   C. Schulz,   P. Zoller,   S. Lösch,   E. Raff,   W. Wischert,   S. Kemmler‐Sack,   P. Kessler,   H. Lichte,   T. Nissel,   R. P. Huebener,  

 

期刊: Annalen der Physik  （WILEY Available online 1994）
卷期: Volume 506, issue 2  

页码: 71-76

 

ISSN:0003-3804

 

年代: 1994

 

DOI:10.1002/andp.19945060202

 

出版商: WILEY‐VCH Verlag

 

关键词: Superconductivity;Bi cuprates;Magnetic properties

 

数据来源: WILEY

 

摘要:

AbstractFrom a study of the influence of the Ca: Pb ratio on the superconducting properties of Bibased 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.

 

点击下载:  PDF (394KB)



返 回