Method for obtaining a high soft magnetic property electrodeposited peelable iron-cobalt alloy thin film

Abstract

The invention relates to a method for obtaining a high soft magnetic property electrodeposited peelable iron-cobalt alloy thin film, and belongs to the field of electrochemical application. Accordingto the method for obtaining the high soft magnetic property electrodeposited peelable iron-cobalt alloy thin film, a stainless steel thin band is adopted as a cathode, at the same time, the stainlesssteel thin band is subjected to electrochemical polishing treatment, physical magnetron sputtering titanium plating treatment or titanium nitride treatment, the stress of a stainless steel base band is reduced, and meanwhile, the electrical conductivity and the corrosion resistance of the base band are improved; ultrasonic decontamination treatment is carried out; an iron-cobalt alloy electrodeposited bath solution is prepared; an anode iron plate and an anode cobalt plate are separated; under the condition of the temperature being 30-70 DEG C, and deposition is carried out for 15-70 minutes under a direct current power supply with the current range of 1.0-3.5A / dm2; an iron-cobalt alloy is obtained by electrodeposition and cleaned, drying is carried out, peeling off from the stainless steel base body is carried out by drying, and then the iron-cobalt alloy thin film is obtained, and in order to obtain a iron-cobalt alloy thin film with high saturation magnetization and high permeability, the iron-cobalt alloy thin film is subjected to heat treatment for 1-4 hours at 300 DEG C-650 DEG C.

Description

technical field [0001] The invention relates to a method for obtaining a strippable iron-cobalt alloy thin film by electrodepositing with high soft magnetic properties, belonging to the field of electrochemical applications. Background technique [0002] Commonly used methods in the preparation of iron-cobalt alloy thin films include magnetron sputtering, large plastic deformation, amorphous crystallization and electrodeposition. Among them, the inert gas evaporation, condensation method, and pressure molding method have a wide range of applications and can prepare a variety of nanocrystalline materials, but they may introduce pollutants and defects such as voids caused by incomplete sintering during the preparation process; the large plastic deformation method uses external energy. input, the material undergoes serious plastic deformation under the action of external force, and finally cracks into smaller particles. The structure of the film prepared by this method is not u...

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Problems solved by technology

Among them, the inert gas evaporation, condensation method, and pressure molding method have a wide range of applications and can prepare a variety of nanocrystalline materials, but they may introduce pollutants and defects such as voids caused by incomplete sintering during the preparation process; the large plastic deformation method uses external energy. input, the material undergoes serious plastic deformation under the action of external force, and finally cracks into smaller particles. The structure of the film prepared by this method is not uniform enough, and the performance is poor; Through proper crystallization treatment, some or all of them can be transformed into nano-sized crystalline materials. This method is difficult to obtain large-sized thin-film materials; and the performance of materials prepared by electrodeposition is greatly improved compared with the previous methods. At the same time, the preparation cost is lower

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