DocumentCode
1455895
Title
Investigation of Superconducting Properties of 
Strands by Internal Tin Process for ITER
Author
Li, C.G. ; Xiao, C.J. ; Guan, J.Q. ; Sun, X.G. ; Liu, J.W. ; Liu, X.H. ; Feng, Y. ; Zhang, P.X. ; Li, J.S.
Author_Institution
State Key Lab. of Solidification Technol., Northwestern Polytech. Univ., Xi´´an, China
Volume
20
Issue
3
fYear
2010
fDate
6/1/2010 12:00:00 AM
Firstpage
1484
Lastpage
1487
Abstract
The multifilamentary Nb3Sn strands with a diameter of 0.82 mm and different local area ratios of Nb to copper (LAR) have been successfully fabricated by an internal tin process in Western Superconducting Technologies Co., Ltd. (WST). The heat treatments have been completed in a vacuum condition. The Critical Current (Ic) and hysteresis loss of the strands are measured after different heat treatments according to ITER requirement. The maximum Ic is about 285 A (4.22 K, 12 T, 0.1 ??V/cm) and the hysteresis loss is 290 ~ 410 mJ/cm3 (4.22 K, ??3 T) per strand unit volume. In this paper, the Ic and the hysteresis loss of the strands with different LARs and different heat treatments are investigated. It is a reference for fabricating the qualified Nb3Sn strands for ITER project in large scale in WST.
Keywords
multifilamentary superconductors; nanofabrication; niobium alloys; superconducting magnets; tin alloys; ITER; Nb to copper local area ratios; Nb3Sn strand fabrication; Nb3Sn strand superconducting properties; Nb3Sn; Western Superconducting Technologies Co; critical current; current 285 A; heat treatment; hysteresis loss; internal tin process; multifilamentary Nb3Sn strands; size 0.82 mm; vacuum condition; ${rm Nb}_{3}{rm Sn}$
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2010.2042440
Filename
5439724
Link To Document