Metal-based superconducting strip and preparation method thereof

• Main Authors: LIU LINFEI, KE SHAODONG, MIAO CHAOHANG, LI YIJIE, ZHU RONGJI, YE JIACHAO, MOU SHAOJING
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2021
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CONDUCTORS; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INSULATORS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention belongs to the technical field of superconductors, and particularly relates to a metal-based superconducting strip and a preparation method thereof. The preparation method of the metal-based superconducting strip comprises the following steps that (1) a film is formed on the surface of a metal-based strip by adopting a pulse laser deposition method, specifically, in the pulse laser deposition method, a Fe<(1-x)> SeTe<(1-y)> target material or a Fe<(1 + x)>SeTe<(1-y)> target material is adopted, 0<=x<=0.1, and 0.1<=y<=0.9; and (2) a protective layer is deposited on the surface of the film by using a magnetron sputtering method. According to the method, the iron-based superconducting strip can be rapidly and continuously prepared, and the prepared superconducting strip has good C-axis orientation, smooth surface, high superconducting transition temperature and high critical current density. 本发明属于超导体技术领域，具体涉及一种金属基超导带材及其制备方法。一种金属基超导带材的制备方法，包括如下步骤：1)采用脉冲激光沉积方法在所述金属基带表面形成薄膜：在脉冲激光沉积方法中，采用Fe(1-x)SeyTe(1