Microstructure and levitation properties of floating zone melted YBCO samples

Author

Bashkirov, Yu.A. ; Fleishman, L.S. ; Vdovin, A.B. ; Zubritsky, I.A. ; Smirnov, V.V. ; Vinogradov, A.V.

Author_Institution

Krzhizhanovsky Power Eng. Inst., Moscow, Russia

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2269

Lastpage

2272

Abstract

Radiation zone melting has been used to produce texture in sintered YBCO cylindrical samples. Microstructural analysis by electron microscopy and pole figure measurements reveals that the production process gives rise to a preferential orientation within large domains. DC transport measurements show that changes in alignment orientation can result in the inability to carry a transport current. Both AC magnetic field shielding and levitation properties are substantially improved by the floating zone melting, the levitation force being increased with the textured domain size growth

Keywords

barium compounds; crystal microstructure; electron microscope examination of materials; electron microscopy; high-temperature superconductors; magnetic domains; magnetic levitation; magnetic shielding; radiation effects; texture; yttrium compounds; zone melting; AC magnetic field shielding; DC transport measurements; YBaCuO; alignment orientation; electron microscopy; floating zone melted YBCO; high temperature superconductor; levitation properties; microstructural analysis; pole figure measurements; radiation zone melting; texture; textured domain size growth; Current measurement; Electron microscopy; Levitation; Magnetic analysis; Magnetic field measurement; Magnetic properties; Magnetic shielding; Microstructure; Production; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305727

Filename

305727