INFLUENCE OF THE MICROSTRUCTURE ON MAGNETIC-SHIELDING PROPERTIES OF (BI,PB)-SR-CA-CU-O SUPERCONDUCTOR

Authors
PLECHACEK V POLLERT E HEJTMANEK J
Citation
V. Plechacek et al., INFLUENCE OF THE MICROSTRUCTURE ON MAGNETIC-SHIELDING PROPERTIES OF (BI,PB)-SR-CA-CU-O SUPERCONDUCTOR, Materials chemistry and physics, 43(2), 1996, pp. 95-98
Citations number
6
Categorie Soggetti
Material Science
Journal title
Materials chemistry and physics → ACNP
ISSN journal
02540584
Volume
43
Issue
2
Year of publication
1996
Pages
95 - 98
Database
ISI
SICI code
0254-0584(1996)43:2<95:IOTMOM>2.0.ZU;2-6
Abstract
Bi-2223 based ceramic magnetic shields were prepared by thermomechanic al treatment. It was evidenced that the orientation of the superconduc ting grains with the c-axis perpendicular to z-axis of the tube is fav ourable. The single tube of the wall thickness of only 1.8 mm traps a magnetic flux density of 30 mT at 77.3 K and 60 mT at 63.2 K, and the shielding efficiency is substantially increased in coaxially arranged tubes. Thus for the system of five tubes of overall thickness 9.6 mm, B-tr reaches 70 mT at 77.3 K.