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Method for preparing ferromagnetic nano composite material with pulse-ultrasound electrodeposition

A nano-composite material, ultrasonic technology, applied in the direction of electrolytic coatings, coatings, etc., can solve the problem that a single material is difficult to meet the demand, and achieve the effect of low cost and simple method.

Inactive Publication Date: 2011-04-06
DALIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to research and design a novel pulse-ultrasonic electrodeposition method for preparing ferromagnetic nanocomposites, thereby solving the requirements of the industrial field on the surface properties of materials. It is difficult to meet the demand, the development and application of composite materials with various special functions

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  • Method for preparing ferromagnetic nano composite material with pulse-ultrasound electrodeposition
  • Method for preparing ferromagnetic nano composite material with pulse-ultrasound electrodeposition
  • Method for preparing ferromagnetic nano composite material with pulse-ultrasound electrodeposition

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Embodiment Construction

[0067] Specific embodiments of the present invention are shown in the accompanying drawings, and the specific implementation steps of the described pulse-ultrasonic electrodeposition to prepare ferromagnetic nanocomposites are:

[0068] 1. Perform mechanical pretreatment on the sample: rough grinding with sandpaper to remove foreign matter such as burrs and oxides on the surface of the sample to reduce surface roughness.

[0069] 2. Pre-treatment of the sample: degreasing, derusting, electrolytic polishing and activation. The components of the solution for degreasing the matrix are: sodium hydroxide 90g / l, sodium phosphate 60g / l, washing powder 4g / l, temperature 60°C, time 8min.

[0070] Rust removal solution formula: sulfuric acid 180g / l, hydrochloric acid 55g / l, OP emulsifier 4g / l, thiourea 4g / l, sodium lauryl sulfate 0.04g / l, temperature at room temperature, time 8min.

[0071] Electropolishing solution formula and process parameters: phosphoric acid 72%, chromic acid 23%,...

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Abstract

The invention relates to a method for preparing a composite material, which comprises the following steps of: putting a basal body subjected to pretreatment into a conventional electroplating bath, and applying an electric field and an ultrasonic field on the plating bath with an ultrasonic generator and a pulsing power source. The process of pulse-ultrasound electrodeposition generally comprises the following steps of: 1, elecroplating pretreatment comprising pretreatment of the basal body and preparation of electroplate liquid; 2, electrodeposition process: putting the basal body which is pretreated in the step one into the prepared electroplate liquid for electrodeposition; and3, post treatment of plating parts, mainly comprising the working procedures of ultrasonic cleaning for the plating parts which are deposited in the step two and anhydrous alcohol cleaning. In the invention, in the electroplate liquid containing nickel and iron ions and insoluble nanoparticles, the nanoparticles are uniformly distributed in the liquid by using ultrasonic stirring, the nanoparticles and substrate metal ions are simultaneously deposited to obtain the ferromagnetic nano composite material composed of substrate metal nickel-iron and the nanoparticles under the condition that positive and negative pulse current or voltage are applied.

Description

technical field [0001] The method for preparing ferromagnetic nano-composite materials by pulse-ultrasonic electrodeposition in the present invention relates to a method for preparing composite materials, in particular to a pulse-ultrasonic electrodeposition method for ferromagnetic nano-composites. Background technique [0002] At present, with the rapid development of modern science and technology, various new requirements have been put forward for the surface properties of materials in the industrial field, and it is difficult for a single material to meet this demand. attention and application. Composite material is a new material formed by combining two or more different materials by appropriate methods. Its performance is superior to any material that makes up the composite material. Composite materials are widely used in aerospace, national defense, transportation, sports and other fields due to their excellent comprehensive performance, especially the designability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00
Inventor 杨帆刘新功吴蒙华贾卫平王元刚
Owner DALIAN UNIV
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