Identification of aging mechanisms for non-destructive pulsed magnets operating in the 60 T range

Author

Billette, J. ; Lecouturier, F. ; Portugall, O.

Author_Institution

Lab. Nat. des Champs Magnetiques Pulses, CNRS, Toulouse, France

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1237

Lastpage

1240

Abstract

Pulsed magnets are exposed to mechanical, thermal and electrical stresses whose combined effect shortens their lifetime even in the nondestructive regime. In the end it is often impossible to identify the exact origin of a magnet failure as most of the observed damage results from electric arcs that can be caused by both insulation breakdowns and conductor ruptures. We report on recent investigations considering both scenarios.

Keywords

ageing; deformation; electromagnets; flaw detection; mechanical testing; partial discharges; stainless steel; 60 T; aging mechanisms; conductor ruptures; copper-stainless steel conductors; cryogenic deformation; electric arcs; electrical aging; electrical stresses; insulation breakdowns; magnet failure; mechanical aging; mechanical stress; nondestructive pulsed magnets; nondestructive regime; thermal stress; Aging; Coils; Conducting materials; Conductors; Dielectrics and electrical insulation; Magnetic fields; Magnetic materials; Magnets; Steel; Thermal stresses; Copper-stainless steel conductors; cryogenic deformation; electrical and mechanical aging; pulsed magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830540

Filename

1325022