Sensitivity of the Field Trapped by Superconducting Bulks on the Parameters of the Magnetization Process

Author

Fabbri, Massimo ; Morandi, Antonio ; Negrini, Francesco ; Ribani, Pier Luigi

Author_Institution

Dept. of Electr. Eng., Bologna Univ.

Volume

16

Issue

2

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1570

Lastpage

1573

Abstract

Recent progress in material processing has enabled the fabrication of large single grain YBCO bulks having the potential to trap a magnetic field much stronger than that of conventional permanent magnets, thus opening the way to new applications in the field of power electric machinery. However, for YBCO bulks to find a broad use, a suitable magnetization process must be developed. In fact, the value of the trapped field as well as the stability with respect to the time and the shape of the profile strongly depend on the parameters of the magnetization process, i.e. the peak value and the waveform of the applied field and the operating temperature of the bulk. In this paper such a dependence is numerically investigated

Keywords

barium compounds; high-temperature superconductors; magnetic field effects; magnetisation; superconducting magnets; yttrium compounds; YBCO bulk fabrication; YBa₂Cu₃O₇; high temperature superconductor; magnetization process; material processing; permanent magnets; power electric machinery; trapped magnetic field; Fabrication; Machinery; Magnetic fields; Magnetization processes; Materials processing; Permanent magnets; Shape; Stability; Superconducting magnets; Yttrium barium copper oxide; Bulk high temperature superconductor; YBCO; magnetization processes; quasipermanent magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.869717

Filename

1643156