DocumentCode :
1061409
Title :
The Effect of Second Phase Additions on the Microstructure and Bulk Pinning Force in 
PIT Wire
Author :
Motowidlo, L.R. ; Lee, P.J. ; Larbalestier, D.C.
Author_Institution :
SupraMagnetics, Inc., Plantsville, CT, USA
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
2568
Lastpage :
2572
Abstract :
The effect of second phase gadolinium and yttrium additions on the microstructure and the bulk pinning force are reported for PIT Nb3Sn mono-wires. High resolution SEM of the grain morphology show smaller grain size for mono-wires with the second phase additions after 750degC and 850degC heat treatment compared to control samples. The bulk pinning force properties are determined from magnetization measurements at 9 K which allow the whole pinning force curve to be seen.
Keywords :
critical current density (superconductivity); flux pinning; gadolinium alloys; grain size; heat treatment; magnetisation; neodymium alloys; scanning electron microscopy; superconducting thin films; tantalum alloys; tin alloys; yttrium alloys; (NbGd)3Sn; (NbTa0.75Y)3Sn; PIT monowires; bulk pinning force; critical current density; flux pinning; grain morphology; grain size; heat treatment; high resolution SEM; magnetization; microstructure; second phase addition effect; superconducting thin films; temperature 750 C; temperature 850 C; temperature 9 K; ${rm Nb}_{3}{rm Sn}$
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2017762
Filename :
5067247
Link To Document :
