Method for surface electroplating of high-resistivity metallic oxide material

A high-resistivity and oxide technology, applied in the field of surface electroplating of high-resistivity oxide materials, can solve the problem that the surface of high-resistivity metal oxide materials cannot be directly electroplated, and achieve simple production and maintenance, uniform thickness, and good bonding force. Effect

Inactive Publication Date: 2008-03-12
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for electroplating the surface of high-resistivity metal oxide materials, which solves the problem that the surface of high-resistivity metal oxide materials cannot be directly electroplated

Method used

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  • Method for surface electroplating of high-resistivity metallic oxide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Select 20 pieces of nickel-zinc-copper ferrite (N 0.3 Zn 0.5 Cu 0.2 Fe 2 o 4 ) ceramic sheet, the molar percentage content of nickel element is 4.29%, the molar percentage content of zinc element is 7.14%, the molar percentage content of copper element is 2.86%, and the molar percentage content of iron element is 28.6%. A steel ball with a diameter of 1mm As the cathode conductive medium, the ceramic sheet and the steel ball are placed in the hanging basket together, immersed in the sodium sulfate aqueous solution, and the titanium basket is used as the anode, the aqueous solution is electrolyzed under vibration conditions, and the atomic hydrogen conduction modification treatment is performed on the surface of the ferrite. The process parameters are as follows:

[0015] Sodium Sulfate (Na 2 SO 4 ): 20 g / l

[0016] Cathode current density: 0.05 ampere / square decimeter

[0017] Temperature: room temperature

[0018] After 0.5 hours of treatment, the ceramic shee...

Embodiment 2

[0028] Select 20 grains of lead titanate (PbTiO 3 ) single crystal, volume 1mm 3 Left and right, granular, lead and titanium element mole percentages are both 20%, steel balls with a diameter of 0.5mm are used as the cathode conductive medium, placed in a hanging basket, the hanging basket is immersed in potassium sulfate aqueous solution, and the titanium basket is used as the anode , electrolyze the aqueous solution under vibration conditions, and conduct atomic hydrogen conductance modification treatment on the surface of lead titanate single crystal, the process parameters are as follows:

[0029] Potassium sulfate (K 2 SO 4 ): 200 g / l

[0030] Cathode current density: 1 ampere / square decimeter

[0031] Temperature: 80°C

[0032] After 2 hours of treatment, take out the hanging basket, rinse the hanging basket, steel balls and lead titanate single crystal with deionized water, then place the hanging basket in the electroplating silver solution, and use the vibration e...

Embodiment 3

[0042] Select 10 pieces of lead magnesium niobate (Pb(Mg 1 / 3 Nb 2 / 3 )O 3 ) ceramic sheet, the molar percentage content of lead element is 20%, the molar percentage content of niobium element is 13.3%, and a steel ball with a diameter of 1mm is used as the cathode conductive medium. , carry out atomic hydrogen conductance modification treatment under vibration conditions, and the process parameters are as follows:

[0043] Sodium Sulfate (Na 2 SO 4 ): 400 g / l

[0044] Cathode current density: 2 amps / square decimeter

[0045] Temperature: room temperature

[0046] After 1 hour of treatment, take out the hanging basket, clean the hanging basket, lead magnesium niobate ceramic sheet and steel ball with deionized water, then place the hanging basket in the electroplating tin solution, and use the vibration plating process for tin plating. The process parameters are as follows :

[0047] Sn(BF 4 ) 2 ): 200 g / l

[0048] Fluoboric acid (HBF 4): 150 g / l

[0049] Gelatin: 6...

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Abstract

The invention provides a method for plating surfaces of oxide materials of high resistivity, which pertains to the technical field of plating for surfaces of metallic oxide materials. First of all, the surface of a metallic oxide material goes through atom hydrogen induced modification in term of conductivity, the electron conductivity of the surface is increased, so that the resistivity is lower than 10<4> Omega is multiplied by m, hence the material surface becomes semi-conducted or metalized; then the modified metallic oxide material is cleaned by de-ionized water, and still then a metallic coating is plated and deposited on the surface of the oxide material through a vibration or rolling plating way. In respect to the fact that the surface of metallic oxide of high resistivity can't be directly plated, the invention first carries out atom hydrogen induced modification in term of conductivity on the surface of metallic oxide to increase the electron conductivity of the surface, then plates and deposits a metallic plating, the obtained metallic plating is of even thickness and good bond with the surface of metallic oxide. The invention is of low equipment investment, and easy to produce and maintain.

Description

technical field [0001] The invention belongs to the technical field of surface electroplating of metal oxide materials, in particular to a method for surface electroplating of high-resistivity oxide materials. 4 Ω·m) and the electroplating method of oxide materials that cannot be directly electroplated to achieve metallization of the material surface. Background technique [0002] The electroplating process cannot be used for metal plating on the surface of high-resistivity oxide materials, because the electronic conductivity of such materials is small, and the metal ions to be plated in the electroplating solution cannot obtain electrons from the surface of the material, so they cannot be deposited. Traditional metal plating methods on the surface of oxide materials include electroless plating, vacuum evaporation, sputtering plating, coating metal paste and then sintering. Each method has its own advantages and disadvantages [Yin Qingrui, Zhu Binghe, Functional Ceramics Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/54
Inventor 曹江利
Owner UNIV OF SCI & TECH BEIJING
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