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

Authors
RENTSCHLER T SCHULZ C ZOLLER P LOSCH S RAFF E WISCHERT W KEMMLERSACK S KESSLER P LICHTE H NISSEL T HUEBENER RP
Citation
T. Rentschler et al., INFLUENCE OF THE CAPB RATIO ON THE SUPERCONDUCTING PROPERTIES OF BI-BASED CERAMICS OF TYPE-2223, Annalen der Physik, 3(2), 1994, pp. 71-76
Citations number
9
Categorie Soggetti
Physics
Journal title
Annalen der Physik → ACNP
Volume
3
Issue
2
Year of publication
1994
Pages
71 - 76
Database
ISI
SICI code
Abstract
From a study of the influence of the Ca:Pb ratio on the superconductin g properties of Bi-based ceramics of 2223 type it follows that as a se cond parameter the employed gas atmosphere must be taken into consider ation. In case of air preparation good intragrain and intergrain prope rties 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) impr oved conditions are encountered by employment of an Ar/O2 (8%) atmosph ere during synthesis. Independently, the transition temperature is sit uated near 108 K.