Title :
Development of Nb3Al superconducting wire for accelerator magnets
Author :
Kobayashi, Takamitsu ; Tsuchiya, Kiyosumi ; Shintomi, Takakazu ; Terashima, Akio ; Banno, Nobuya ; Nimori, Shigeki ; Takeuchi, Takao ; Tagawa, Kohei ; Iwaki, Genzou
Author_Institution :
High Energy Accelerator Res. Organ., Tsukuba, Japan
fDate :
6/1/2004 12:00:00 AM
Abstract :
Nb3Al superconductors have shown promising performance compared to Nb3Sn conductors when processed by rapid heating/quenching process. Therefore we have started an R&D program of Nb3Al conductors for future accelerator magnets. Several test wires of around 0.8 mm diameter, which have relatively small filament (∼50 micron diameter) and low matrix ratio (∼1.0), were fabricated, and the heat treatment and area reduction conditions after the rapid quenching process were studied. The highest noncopper Jc achieved during this study was 1734 A/mm2 at 10 T and 4.2 K.
Keywords :
accelerator magnets; aluminium alloys; critical current density (superconductivity); multifilamentary superconductors; niobium alloys; quenching (thermal); rapid thermal processing; superconducting magnets; type II superconductors; 10 T; 4.2 K; Nb3Al; Nb3Al conductors; Nb3Al superconducting wire; Nb3Al superconductors; Nb3Sn; Nb3Sn conductors; accelerator magnets; area reduction; critical current density; heat treatment; rapid heating; rapid quenching; test wires; wire fabrication; Accelerator magnets; Conductors; Heat treatment; Heating; Niobium; Research and development; Superconductivity; Testing; Tin; Wires; $Al wire; Accelerator magnets; Nb$_; critical current density; rapid-heating/quenching process;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.830370
