DocumentCode :
1075054
Title :
IC Axial Strain Dependence of High Current Density Nb3Sn Conductors
Author :
Lu, Jun ; Han, Ke ; Walsh, Robert P. ; Miller, John R.
Author_Institution :
Nat. High Magnetic Field Lab., Tallahassee
Volume :
17
Issue :
2
fYear :
2007
fDate :
6/1/2007 12:00:00 AM
Firstpage :
2639
Lastpage :
2642
Abstract :
The measurement of critical current of superconducting conductors under applied tensile strain in high magnetic field [IC(B, isin) is essential for the application of Nb3Sn composite conductor in high field superconducting magnets. The large bore 20 T DC magnet at the NHMFL along with a device designed to apply tensile strain allows the IC(B, isin) measurement of about 100 mm long straight Nb3Sn composite wire. The superconducting wires are soldered to dog-bone shaped backing plates made of different materials. Our results show that the backing plate materials have significant effects on the measured IC(B, isin) behaviors. This paper also reports our recent experimental results on high current density Nb3Sn conductors.
Keywords :
critical current density (superconductivity); niobium alloys; superconducting magnets; superconducting materials; tensile strength; tin alloys; DC magnet; Nb3Sn - Binary; axial strain dependence; dog-bone shaped backing plates; high current density superconducting conductors; high field superconducting magnets; magnetic flux density 20 T; superconducting wires; tensile strain; Conducting materials; Conductors; Current measurement; Magnetic field measurement; Niobium; Strain measurement; Superconducting magnets; Superconducting materials; Tensile strain; Tin; ${rm Nb}_{3}{rm Sn}$; Critical current; hybrid magnet; strain;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2007.899110
Filename :
4278184
Link To Document :
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