Iron-based superconducting coil, preparation method and method for measuring resistance of iron-based superconducting joint

Abstract

The invention discloses an iron-based superconducting coil, a preparation method and a method for measuring the resistance of an iron-based superconducting joint. The iron-based superconducting coil comprises an iron-based superconducting wire, and two ends of the iron-based superconducting wire are connected through a joint; and the iron-based superconducting wire is wound on the iron core, and the cross section of the iron core is in a non-closed shape. The embodiment of the invention discloses an iron-based superconducting coil, a preparation method and a method for measuring the resistanceof an iron-based superconducting joint. An iron-based superconducting wire is wound on an iron core; the cross section of the iron core is in a non-closed shape. Two ends of the iron-based superconducting wire are connected through a joint; an iron-based superconducting coil is prepared; closed-loop operation of the iron-based superconductor is achieved, the cross section of the iron core is arranged to be in a non-closed shape, so that when the iron-based superconducting coil is used, the iron core does not generate a magnetic field, the magnetic field generated by the iron-based superconducting coil is not affected, and the prepared iron-based superconducting joint can be used for accurately measuring the resistance of the iron-based superconducting joint.

Description

technical field [0001] The invention relates to the technical field of iron-based superconducting materials, in particular to an iron-based superconducting coil, a preparation method and a method for measuring the resistance of an iron-based superconducting joint. Background technique [0002] Iron-based compound superconducting material is a newly discovered compound superconductor. At present, its highest superconducting transition temperature has reached 55K, and it is likely to continue to increase. Compared with traditional low-temperature superconducting materials, iron-based superconductors have the advantages of high transition temperature, large upper critical field, and small dependence of critical current on strong magnetic field. It is a new superconductor with great application prospects in the range of 20-50K guide material. Compared with oxide high-temperature superconducting materials, iron-based superconductors have simpler crystal structures, larger coher...

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Problems solved by technology

[0004] In view of this, in order to overcome the defect that the iron-based superconducting coil cannot be prepared in the prior art, the embodiment of the present invention provides an iron-based superconducting coil and a preparation method and a method for measuring the resistance of the iron-based superconducting joint

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