Precursor manufacturing method, superconducting wire rod manufacturing method, precursor, and superconducting wire rod
A manufacturing method and technology for superconducting wires, which are applied in cable/conductor manufacturing, superconducting/high-conducting conductors, superconducting devices, etc., can solve problems such as hindering the formation of intermediate layers on the surface layer, and reduce the concentration and reduction of magnetic fields. The effect of magnetic field concentration and excellent lattice matching
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Embodiment approach 1
[0042] figure 1 is a cross-sectional view schematically showing a precursor in one embodiment of the present invention. refer to figure 1 , the precursor of the present embodiment will be described. Such as figure 1 As shown in , the precursor has a substrate 10 including a second metal layer 11 and a non-magnetic Ni alloy layer 12 formed on the second metal layer 11 , and an intermediate layer 20 formed on the non-magnetic Ni alloy layer 12 .
[0043] The substrate 10 has a long strip shape. The substrate 10 includes a second metal layer 11 and a non-magnetic Ni alloy layer 12 .
[0044] The nonmagnetic Ni alloy layer 12 is a nonmagnetic metal. The Ni alloy constituting the nonmagnetic Ni alloy layer 12 is not particularly limited, however, it is preferably Cu (copper)—Ni alloy and Ag (silver)—Ni alloy. Preferably, the non-magnetic Ni alloy layer is oriented.
[0045] The magnetic properties of the non-magnetic Ni alloy layer 12 are lower than those of simple Ni. In o...
Embodiment approach 2
[0069] Figure 5 is a cross-sectional view schematically showing the superconducting wire in this embodiment. refer to Figure 5 , the superconducting wire rod in this embodiment will be described. Such as Figure 5 As shown in , the superconducting wire in the present embodiment has the precursor in Embodiment 1 and the superconducting layer 30 formed on the intermediate layer 20 of the precursor. That is, the superconducting wire has the second metal layer 11, the nonmagnetic Ni alloy layer 12 formed on the second metal layer 11, the intermediate layer 20 formed on the nonmagnetic Ni alloy layer 12, and the intermediate layer 20 formed on the intermediate layer 20. superconducting layer 30 .
[0070] The superconducting layer 30 has a long strip shape. The superconducting layer 30 is made of REBa 2 Cu 3 o y (y is 6-8, more preferably about 7, and RE refers to superconductors represented by rare earth elements such as Y (yttrium), or Gd (gadolinium), Sm (samarium), Ho...
Embodiment approach 3
[0080] Because the superconducting wire in this embodiment and Figure 5 The superconducting wire rod in Embodiment Mode 2 shown in is similar, so description thereof will not be repeated.
[0081] Figure 7 It is a flowchart showing the manufacturing method of the superconducting wire in this embodiment. next reference Figure 7 , the manufacturing method of the superconducting wire rod in the present embodiment will be described.
[0082] Such as Figure 7 As shown in , first, a laminated metal having a first metal layer 13 and a Ni layer 14 formed on the first metal layer 13 is prepared (step S10 ). Next, the intermediate layer 20 is formed on the metal-laminated Ni layer 14 (step S20). Since these steps S10 and S20 are similar to those in Embodiment Mode 1, description thereof will not be repeated.
[0083] Figure 8 is a cross-sectional view schematically showing the state in which the superconducting layer in this embodiment is formed. Such as Figure 7 and Fi...
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Abstract
Description
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