Characterization of High Current RRP Wires as a Function of Magnetic Field, Temperature, and Strain

Author

Godeke, Arno ; Mentink, Matthijs G T ; Dietderich, Daniel R. ; Den Ouden, Andries

Author_Institution

Lawrence Berkeley Nat. Lab., Berkeley, CA, USA

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

2610

Lastpage

2614

Abstract

A new instrument for the characterization of superconducting materials as a function of Magnetic Field, Temperature and Strain, was designed, constructed and tested at Lawrence Berkeley National Laboratory (LBNL). A U-shaped bending spring was selected, since that design has proven to enable accurate characterizations of a multitude of superconducting materials for more than a decade. The new device is validated though measurements on very high current Rod Restack Processed (RRP) Internal-Tin (IT) wires, for which we will present initial results, including parameterizations of the superconducting phase boundaries and comparisons with other wire types. Accurate parametrization of modern high magnetic field conductors is important for the analysis of the performance of magnet systems.

Keywords

critical currents; magnetic fields; niobium alloys; superconducting materials; tin alloys; Nb₃Sn; U-shaped bending spring; high current RRP wires; magnetic field; strain; superconducting materials; very high current Rod Restack Processed Internal-Tin wires; ${rm Nb}_{3}{rm Sn}$ wires; Critical current; magnetic field; strain; temperature;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2018473

Filename

5067088