Magnetization of 2-G Coils and Artificial Bulks

Author

Coombs, T.A. ; Fagnard, J.F. ; Matsuda, Keisuke

Author_Institution

Univ. of Cambridge, Cambridge, UK

Volume

24

Issue

5

fYear

2014

fDate

Oct. 2014

Firstpage

1

Lastpage

5

Abstract

The use of (Re)BCO is limited by the problems of magnetization/demagnetization. (Re)BCO is available in many forms, but two of the most interesting for high magnetic field applications are 2-G tape and bulks (either or as grown or manufactured artificially using 2-G tapes). The minimum joint resistance that can be achieved between YBCO tapes is on the order of 100 nΩ, but this is still too large to operate coils in persistent mode. Bulks have potential to act as very high field magnets, but in order to do this, they need to be magnetized. This paper describes flux pumping methods, which can be used to charge either coils or bulks.

Keywords

barium compounds; demagnetisation; high-temperature superconductors; magnetic flux; superconducting coils; superconducting tapes; yttrium compounds; 2G coils; 2G tape; YBCO; YBCO tapes; artificial bulks; demagnetization; flux pumping methods; high field magnets; joint resistance; magnetization; persistent mode; Magnetic flux; Magnetization; Superconducting coils; Superconducting films; Superconducting magnets; HTS; YBCO; magnetization; racetrack;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2332002

Filename

6845330