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Field and temperature dependences of critical current in direct-heated Nb-tube processed Nb3Al wires

Authors :
Itoh, Kikuo
Kuroda, Tsuneo
Yuyama, Michinari
Iijima, Yasuo
Wada, Hitoshi
Murakami, Yukinobu
Mao, Dali
Source :
IEEE Transactions on Applied Superconductivity. June, 1997, Vol. 7 Issue 2, p1576, 4 p.
Publication Year :
1997

Abstract

A study was conducted on the temperature and field dependences of critical current in direct-heated Nb-tube processed Nb3Al wires. The 0.74 mmphi Nb3Al wires include 121x121 7-core elementary Nb/Al-Mg composites. Results reveal that the volume pinning force of the wires was in agreement with Kramer's scaling law for the measured temperature range 4.2-16 K. Grain boundaries were found to be the most probable pinning source since the phase grains formed were fine.

Details

ISSN :
10518223
Volume :
7
Issue :
2
Database :
Gale General OneFile
Journal :
IEEE Transactions on Applied Superconductivity
Publication Type :
Academic Journal
Accession number :
edsgcl.19942694