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

Abstract

The invention discloses an iron-based superconducting coil, a preparation method thereof, 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 joints; The iron core, on which the iron-based superconducting wire is wound, has a non-closed cross-section. In the iron-based superconducting coil, its preparation method and the method for measuring the resistance of the iron-based superconducting joint in the embodiments of the present invention, the iron-based superconducting wire is wound on the iron core, and the cross-section of the iron core is an open shape. The two ends of the superconducting wire are connected by joints, and the iron-based superconducting coil is prepared, which realizes the closed-loop operation of the iron-based superconductor, and by setting the cross-section of the iron core to a non-closed shape, the iron-based superconducting coil, when in use, The iron core itself does not generate a magnetic field, so it does not affect the magnetic field generated by the iron-based superconducting coil, so that the prepared iron-based superconducting joint can be used to accurately measure 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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