DocumentCode :
954039
Title :
AC losses of Nb3 Sn
Author :
Bussiere, J.F. ; Garber, M. ; Suenaga, M.
Author_Institution :
Brookhaven National Laboratory, Upton, New York
Volume :
11
Issue :
2
fYear :
1975
fDate :
3/1/1975 12:00:00 AM
Firstpage :
324
Lastpage :
327
Abstract :
60 Hz losses were measured at 4.2 K in a number of Nb3 Sn rods and tapes produced by the bronze-diffusion process and in commercial Nb3 Sn tapes. At low fields ( 
Oe), losses vary by more than two orders of magnitude among the different samples and are related to surface topography. At high fields (≳2 kOe) the variation among samples is much less, and depends mainly on the bulk critical current density Jc . The losses are analyzed quantitatively in terms of the critical state model, including a surface current.
Oe), losses vary by more than two orders of magnitude among the different samples and are related to surface topography. At high fields (≳2 kOe) the variation among samples is much less, and depends mainly on the bulk critical current density JKeywords :
Magnetic losses; Superconducting materials; Surfaces; Building materials; Current measurement; Diffusion processes; Laboratories; Loss measurement; Magnetic field measurement; Niobium; Propagation losses; Surface topography; Tin;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1975.1058599
Filename :
1058599
Link To Document :
