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1. 发明授权

US4917965A Multifilament Nb.sub.3 Al superconducting linear composite articles 失效
标题翻译：多丝Nb3Al超导线性复合制品
公开(公告)号：US4917965A
公开(公告)日：1990-04-17
申请号：US315825
申请日：1989-02-24
申请人： Kiyoshi Inoue , Takao Takeuchi , Yasuo Iijima , Michio Kosuge
发明人： Kiyoshi Inoue , Takao Takeuchi , Yasuo Iijima , Michio Kosuge
IPC分类号： H01L39/14
CPC分类号： H01L39/14 , Y10S428/93 , Y10S505/813 , Y10T428/12486
摘要： A long, linear composite article which is characterized in that a large number of composite filaments are present as spaced from one another in a continuous layer composed of copper, a copper alloy, niobium, tantalum or vanadium, each of said composite filaments having a structure that at least one strand of a linear body is surrounded by an aluminum alloy or niobium, said linear body being composed substantially of extremely fine, filamentary superconducting Nb.sub.3 Al compound having an average diameter of from about 0.03 .mu.m to about 1 .mu.m. The said composite article can be prepared by drawing a composite material composed of (a) an aluminum alloy and (b) niobium, together with copper or a copper alloy once or plural times repeatedly, until the average diameter of the aluminum alloy of (a) becomes about 1 .mu.m or less, and heat-treating the resultant linear composite material. This composite articles exhibit excellent superconducting characteristics in high-magnetic field and alternating-current magnetic field.
摘要翻译：一种长线型复合制品，其特征在于，在由铜，铜合金，铌，钽或钒构成的连续层中以大量的复合长丝彼此间隔开地存在，所述复合长丝具有结构线状体的至少一根线被铝合金或铌包围，所述直线体基本上由平均直径为约0.03μm至约1μm的极细微细的超导Nb 3 Al化合物组成。所述复合制品可以通过将（a）铝合金和（b）铌与铜或铜合金一起重复复制一次或多次制成的复合材料制备，直到（a）的铝合金的平均直径）为1μm以下，对所得的线状复合材料进行热处理。该复合材料在高磁场和交流磁场中表现出优异的超导特性。

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