DocumentCode
842997
Title
Strain dependence of critical current in internal tin process Nb3Sn strands
Author
Oh, Sangjun ; Park, Soo Hyeon ; Lee, Chulhee ; Chang, Yongbok ; Kim, Keeman ; Park, Pyeong-Yeol
Author_Institution
Korea Basic Sci. Inst., Daejeon, South Korea
Volume
15
Issue
2
fYear
2005
fDate
6/1/2005 12:00:00 AM
Firstpage
3462
Lastpage
3465
Abstract
The development of a high performance superconducting magnet requires a thorough understanding of the strain effect in the critical current density (Jc) of Nb3Sn strands. A modified version of the WASP device is used for the investigation of the strain effect. The spring is made of BeCu alloy and is capable of applying strain up to 0.7% reversibly at 4.2 K. Several types of high performance Nb3Sn strands (Jc>1000 A/mm2 at 12 T and 4.2 K) have been developed using internal tin process. A comparative study on the axial strain dependence of the critical current is performed.
Keywords
critical current density (superconductivity); multifilamentary superconductors; niobium alloys; stress-strain relations; superconducting magnets; superconducting tapes; tin alloys; 12 T; 4.2 K; BeCu; BeCu alloy; Nb3Sn; Nb3Sn strands; WASP device; axial strain dependence; critical current; internal tin process; strain effect; superconducting magnet; Capacitive sensors; Conducting materials; Critical current; Critical current density; Heat treatment; Magnetic field induced strain; Niobium; Superconducting magnets; Temperature; Tin; Internal tin process; WASP device; strain effect in the critical current density;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2005.849058
Filename
1440417
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