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42. 发明公开

EP0613192A1 Wire for NB3X superconducting wire 失效
标题翻译：抽象的Nb3X Supraleiterdraht。
公开(公告)号：EP0613192A1
公开(公告)日：1994-08-31
申请号：EP94102595.9
申请日：1994-02-21
申请人： SUMITOMO ELECTRIC INDUSTRIES, LIMITED
发明人： Yamada, Yuichi, c/o Osaka Works of , Ayai, Naoki, c/o Osaka Works of
IPC分类号： H01L39/24
CPC分类号： H01L39/2409 , Y10S428/93 , Y10S505/813 , Y10S505/814 , Y10S505/92 , Y10T428/12472 , Y10T428/12486 , Y10T428/12819
摘要： Disclosed herein is a wire for an Nb₃X superconducting wire, which is improved in workability and soundness of a diffusion barrier layer without increasing the diffusion barrier layer in thickness. This wire for an Nb₃X superconducting wire comprises a wire (14) which is prepared by superposing and winding up a first sheet (107) consisting of pure Nb or an Nb alloy and a second sheet (108) consisting of metal atoms X, reacting with Nb for forming a compound exhibiting superconductivity, or an X alloy, a stabilizing material layer (111) which is provided to enclose the wire (14), and a diffusion barrier layer (110) which is provided between an outer surface of the wire (14) and an inner surface of the stabilizing material layer (111) for preventing the metal atoms X from being diffused in the stabilizing material layer (111), and the diffusion barrier layer (110) is made of a metal material having larger tensile strength than that of the first sheet (107). It is possible to obtain a high-performance Nb₃X superconducting wire having a high critical current density and a large residual resistance ratio of the stabilizing material, by heat treating this wire.
摘要翻译：本发明公开了一种用于Nb3X超导线材的线材，其在不增加扩散阻挡层厚度的情况下，可以提高扩散阻挡层的可加工性和良好性。用于Nb3X超导线的该线包括通过叠加和卷绕由纯Nb或Nb合金构成的第一片（107）和由金属原子X组成的第二片（108）制成的线（14），其与用于形成显示超导性的化合物的Nb或X合金，设置为包围线（14）的稳定材料层（111）以及设置在导线的外表面之间的扩散阻挡层（110） 14）和稳定材料层（111）的内表面，用于防止金属原子X扩散到稳定材料层（111）中，并且扩散阻挡层（110）由具有较大拉伸强度的金属材料比第一片（107）的厚度大。通过对该线进行热处理，可以获得具有高临界电流密度和稳定材料的大残留电阻比的高性能Nb3X超导线。

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