DocumentCode
1075263
Title
Development of Nb3Al Wires With High Critical Current Density for Future Accelerator Magnets
Author
Mitsuda, C. ; Tsuchiya, K. ; Terashima, A. ; Takeuchi, T. ; Banno, N. ; Nimori, S. ; Kikuchi, A. ; Iijima, Y. ; Seki, Y.. ; Ohno, M.. ; Okamoto, K.. ; Takao, T. ; Nakamura, K. ; Tagawa, K.
Author_Institution
High Energy Accel. Res. Organ. KEK, Tsukuba
Volume
17
Issue
2
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
2693
Lastpage
2696
Abstract
Recent studies of RHQ-processed Nb3Al wires for future accelerator magnets are presented and discussed. Test wires were prepared with different fabrication parameters, such as the Nb matrix ratio, RHQ current, area reduction ratio of the wire after an RHQ treatment and the 2nd heat treatment condition. Measurements of the critical current density (Jc) and n-value have been performed during the past several years. Recently, we performed the critical temperature (Tc) measurement, and the relationship between Jc and Tc was investigated by an RHQ treatment, a 2nd heat treatment, the Nb matrix ratio, and the area reduction effect.
Keywords
aluminium alloys; critical current density (superconductivity); niobium alloys; quenching (thermal); superconducting materials; superconducting transition temperature; Nb3Al - Binary; accelerator magnets; critical current density; critical temperature; fabrication parameters; heat treatment; n-value; quenching; rapid heating; reduction ratio; wires; Accelerator magnets; Critical current density; Current measurement; Density measurement; Fabrication; Heat treatment; Niobium; Performance evaluation; Testing; Wires; ${rm Nb}_{3}{rm Al}$
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2007.899006
Filename
4278203
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