Trapped field magnets of high-T/sub c/ superconductors

Author

Wen, H.M. ; Lin, L.Z. ; Xiao, L.Y. ; Xiao, L. ; Jiao, Y.L. ; Zheng, M.H. ; Ren, H.T.

Author_Institution

Inst. of Electr. Eng., Acad. of Sci., China

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

898

Lastpage

900

Abstract

To develop trapped field magnets with YBCO bulks at and below 77 K, a series of trapped field magnets have been developed and tested. With two /spl Phi/26 mm/spl times/10 mm YBCO bulks, a trapped field magnet of 7.09 T at 29.8 K with low creep has been achieved. Cracks occur when 10 T magnetic field is applied to charge this magnet. With two /spl Phi/16 mm/spl times/10 mm YBCO bulks, a trapped field magnet of 7.02 T at 12.8 K has been achieved. Creep behavior of trapped field magnets at low temperatures are also investigated. When the trapped field is much lower than critical field, almost no creep was observed in the authors´ experiments.

Keywords

barium compounds; copper compounds; high-temperature superconductors; magnetic fields; superconducting magnets; yttrium compounds; 10 T; 10 mm; 12.8 K; 16 mm; 26 mm; 29.8 K; 7.02 T; 7.09 T; 77 K; YBCO bulks; YBaCuO; cracks; creep behaviour; high-T/sub c/ superconductors; magnetic field; trapped field magnets; Coils; Creep; Electromagnetic fields; Electromagnetic forces; High temperature superconductors; Magnetic fields; Magnetic resonance imaging; Superconducting magnets; Superconductivity; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828376

Filename

828376