Yttrium-based superconducting tape with uniform contact resistance and its preparation method and device

A technology of superconducting tape and contact resistance, which is applied in the manufacture/processing of superconductor devices, superconductor parts and other directions, and achieves the effects of good uniformity, good ductility, and stable and reliable operation.

Active Publication Date: 2017-01-25
SHANGHAI SUPERCONDUCTOR TECH CO LTD
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  • Application Information

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Problems solved by technology

[0006] In the currently known technology, there is no way to make superconducting joints by spot welding

Method used

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  • Yttrium-based superconducting tape with uniform contact resistance and its preparation method and device
  • Yttrium-based superconducting tape with uniform contact resistance and its preparation method and device

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Embodiment Construction

[0046] The following is a detailed description of the embodiments of the present invention: this embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and specific operation processes. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

[0047] Such as figure 1 As shown, the present embodiment provides a yttrium-based superconducting strip with a uniform distribution of contact resistance, including a metal upper cladding layer, a superconducting strip central layer, a metal lower cladding layer, and an electrically connected welding metal layer. The central layer of the superconducting strip is arranged between the upper cladding layer of the metal and the lower cladding layer of the metal, between the upper cladding l...

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Abstract

The invention provides an yttrium system superconducting strip with contact resistance evenly distributed. The yttrium system superconducting strip comprises an upper metal coating layer, a superconducting strip center layer, a lower metal coating layer and electric connecting weld metal layers. The superconducting strip center layer is arranged between the upper metal coating layer and the lower metal coating layer, and the space between the upper metal coating layer and the superconducting strip center layer and the space between the superconducting strip center layer and the lower metal coating layer are respectively filled with one electric connecting weld metal layer. Meanwhile, the invention provides a method and device for manufacturing the yttrium system superconducting strip. According to the yttrium system superconducting strip, the contact resistance is low; the manufacturing process is simple; connector resistance is evenly distributed within a range of some meters, heat dissipation is uniform, and stable and reliable operation is achieved; repeatability and the yield are extremely high, and performance is stable and uniform; the degree of uniformity of connectors is good, the surfaces of the connectors are smooth and clean, and the connectors are almost unable to perceive from the surfaces; since encapsulation strengthening is carried out on the upper portion and the lower portion of each connector, mechanical strength of the connectors is higher, and ductility and malleability of the connectors are better; the superconducting strip with an infinite length can be manufactured, and countless connectors are contained in the superconducting strip.

Description

technical field [0001] The invention relates to the technical field of superconducting materials, in particular to a yttrium-based superconducting tape with uniform distribution of contact resistance and a preparation method and device thereof. Background technique [0002] Superconductivity can be divided into low-temperature superconductivity and high-temperature superconductivity by critical temperature. In the high-temperature superconducting tape, it can be divided into bismuth-based and yttrium-based high-temperature superconductors according to different materials. Bismuth-based high-temperature superconductors are commonly known as the first generation of high-temperature superconductors, also known as BSCCO superconductors. Yttrium-based high-temperature superconductors are commonly known as second-generation high-temperature superconductors, also known as YBCO superconductors. [0003] With the continuous improvement of the performance of high-temperature superco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L39/12H01L39/24
Inventor 朱佳敏洪智勇成敏缪玘奂
Owner SHANGHAI SUPERCONDUCTOR TECH CO LTD
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