DocumentCode
1049460
Title
Superconductivity near 20 K in ternary and quaternary alloys based upon Nb3 Al
Author
Kawabe, U. ; Kudo, Motoi ; Fukase, Shin-ichi
Author_Institution
Hitachi Ltd., Kokubunji, Tokyo, Japan
Volume
8
Issue
3
fYear
1972
fDate
9/1/1972 12:00:00 AM
Firstpage
614
Lastpage
614
Abstract
Ternary and quaternary A-15 type compounds, Nb3 Al1-y My (M=Be,B) and (Nb1-x Tax )3 Al1-y Gey , were investigated in the composition range where the A-15 structure was stable. The superconducting critical temperatures of these compounds were measured as a function of composition (x and y), lattice constant, and condition of heat treatment. It was found that the critical temperature can be enhanced up to near 20 K by substituting Al for the quest elements in a stoichiometric compound Nb3 Al. Magnetic field dependences of the critical current density were also discussed for as-cast and aged samples.
Keywords
Niobium-aluminum alloys; Superconducting alloys; Critical current density; Current measurement; Niobium alloys; Niobium-tin; Solenoids; Superconducting coils; Superconducting materials; Superconductivity; Temperature dependence;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1972.1067344
Filename
1067344
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