Superconducting properties of Nb3Al MF wire made by Nb/Al-Mg composite process.
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概要
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An MF superconductor with ultra-fine continuous Nb3Al filaments has been fabricated successfully by the newly developed composite process, in which a composite consisting of a niobium matrix and a large number of Al-Mg alloy cores is cold-drawn into a wire with very fine Al-Mg filaments (about 0.1μm), and then heat treated at 650-1, 000°C to form Nb3Al continuous filaments by the diffusion reaction. The wire shows Tc of 15-16K, μ0Hc2 (4.2K) of 21-23T and Jc (4.2K, 10T) of 1-1.5×105A/cm2, which are as high as those of the practical Nb3Sn multilamentary wires.
- 公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)の論文
公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会) | 論文
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