CU-containing NB3A1 multifilamentary superconductive wire and process for producing the same

发明授权

US06376099B1 CU-containing NB3A1 multifilamentary superconductive wire and process for producing the same 失效

标题翻译：含CU的NB3A1复丝超导丝及其制造方法

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专利标题： CU-containing NB3A1 multifilamentary superconductive wire and process for producing the same
专利标题（中）： 含CU的NB3A1复丝超导丝及其制造方法
申请号： US09708409

申请日： 2000-11-09
公开(公告)号： US06376099B1

公开(公告)日： 2002-04-23
发明人: Kiyoshi Inoue , Yasuo Iijima , Akihiro Kikuchi
申请人： Kiyoshi Inoue , Yasuo Iijima , Akihiro Kikuchi
主分类号： H01B1210
IPC分类号： H01B1210

CU-containing NB3A1 multifilamentary superconductive wire and process for producing the same

摘要：

A Cu-containing Nb3Al multifilamentary superconductive wire having a multifilamentary (superfine multi-core structure that a large number of micro-complex cores each obtained by complexing a Cu—Al alloy containing Cu in an amount of more than 0.2 at. % and at most 10 at. % in Nb are embedded in Nb, Ta, an Nb alloy or a Ta alloy as a matrix, wherein in the micro-complex cores, an A15 phase compound structure is formed by rapid heating at a temperature of 1,700° C. or more for 2 seconds or less and quenching to approximately room temperature, and further additionally heat-treated at a temperature of 650 to 900° C. This superconductive wire has high Jc in a low magnetic field, can be applied to all magnetic fields of 29 T or less, and is excellent in Jc characteristics in a high magnetic field in comparison with an Nb3Al wire.

摘要（中）：

一种含Cu的Nb3Al复丝超导线，其具有多丝（超细多芯结构，其中大量微复合芯通过使含Cu量大于0.2at。％的Cu-Al合金和至多 Nb中的10原子％埋入Nb，Ta，Nb合金或Ta合金中作为基体，其中在微复合芯中，在1700℃的温度下快速加热形成A15相的化合物结构。以上2秒以下淬火至约室温，进一步在650〜900℃的温度下进行热处理。该超导线在低磁场中具有高Jc，可以应用于所有的磁场 29T以下，并且与Nb3Al线相比，在高磁场中的Jc特性优异。

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