Critical magnetization current density and repulsive force determined by repulsive method

Author

Christiansen, J.K.S. ; Andersen, L.G. ; Frederiksen, S.L. ; Mygind, J.

Author_Institution

Tech. Univ. Denmark, Lyngby, Denmark

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

2316

Lastpage

2319

Abstract

Determination of the critical magnetization current density of large superconducting samples was performed using a levitation force method. It is based on measurement of the force between the superconductor and a permanent Nd-Fe-B magnet, thus the applied magnetic field may be up to /spl sim/0.4 tesla. At this field, levitation forces up to 6.6 N (5.5 MN/m/sup 3/) were measured on melt processed tablets of Y-Ba-Cu-O material with dimensions of /spl sim/2 cm/spl times/2 cm/spl times/0.3 cm.

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; magnetic levitation; magnetisation; yttrium compounds; 0.4 T; Nd-Fe-B; Y-Ba-Cu-O; applied magnetic field; critical magnetization current density; large superconducting samples; levitation force; melt processed tablets; repulsive force; Current density; Force measurement; Magnetic field measurement; Magnetic fields; Magnetic levitation; Magnetic moments; Magnetization; Permanent magnets; Superconducting coils; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.784934

Filename

784934