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A method for electroless nickel plating on zta ceramic surface in ionic liquid

A technology of electroless nickel plating and ionic liquid, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., can solve the problems of uneven surface plating, unstable plating solution, and excessive plating speed, etc. Achieve the effect of avoiding the instability of the plating solution, improving the plating efficiency and improving the wetting ability

Active Publication Date: 2018-08-28
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For the problems existing in the prior art, the purpose of the present invention is to provide a method for electroless nickel plating on the surface of ZTA ceramics in an ionic liquid, which can effectively solve the problem of uneven surface plating and plating problems in the chemical plating of large particle diameter ZTA particles. The problem that the plating solution is unstable due to too fast speed

Method used

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  • A method for electroless nickel plating on zta ceramic surface in ionic liquid
  • A method for electroless nickel plating on zta ceramic surface in ionic liquid

Examples

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Effect test

Embodiment 1

[0023] (1) Prepare the surface treatment solution, wherein the concentration of tin protochloride is 10g / L and the concentration of hydrochloric acid is 4mol / L, and the ZTA ceramic particles with a particle diameter of 10 μm are treated in the surface treatment solution for 20min, then filtered and deionized Water washed 3 times to obtain ZTA ceramic particles with clean and rough surface.

[0024] (2) prepare electroless nickel plating solution, and adjust solution pH value to 9 with sodium hydroxide, wherein the concentration of nickel chloride is 25g / L, and the concentration of sodium hypophosphite is 20g / L, and the concentration of sodium citrate is 10g / L L, the concentration of boric acid is 10g / L, the ionic liquid is imidazole hexafluorophosphate, and the concentration is 10g / L.

[0025] (3) Put the electroless nickel plating solution into the rotary plating tank and heat it to 40°C. After the temperature is constant, put the surface-treated ZTA ceramic particles into th...

Embodiment 2

[0028] (1) Prepare the surface treatment solution, wherein the concentration of stannous chloride is 20g / L and the concentration of hydrochloric acid is 6mol / L, and the ZTA ceramic particles with a particle diameter of 1000 μm are treated in the treatment solution for 40min, then filtered and deionized Washing with water 5 times gave ZTA ceramic particles with clean and rough surface.

[0029] (2) prepare electroless nickel plating solution, and adjust solution pH value to 10 with sodium hydroxide, wherein the concentration of nickel chloride is 40g / L, and the concentration of sodium hypophosphite is 30g / L, and the concentration of sodium citrate is 20g / L L, the concentration of boric acid is 15g / L, and the ionic liquid is choline chloride-urea, and the concentration is 30g / L.

[0030] (3) Put the electroless nickel plating solution into the rotary plating tank and heat it to 60°C. After the temperature is constant, put the surface-treated ZTA ceramic particles into the rotary...

Embodiment 3

[0032] (1) prepare the surface treatment solution, wherein the concentration of stannous chloride is 30g / L and the concentration of hydrochloric acid is 7mol / L, the ZTA ceramic particles with a particle diameter of 1500 μm are processed in the surface treatment solution for 60min, then filtered and deionized Water washed 4 times to obtain ZTA ceramic particles with clean and rough surface.

[0033] (2) prepare electroless nickel plating solution, and adjust solution pH value to 9 with sodium hydroxide, wherein the concentration of nickel chloride is 55g / L, and the concentration of sodium hypophosphite is 40g / L, and the concentration of sodium citrate is 30g / L L, the concentration of boric acid is 20g / L, and the ionic liquid is choline chloride-urea, and the concentration is 50g / L.

[0034] (3) Put the electroless nickel plating solution into the rotary plating tank and heat it to 80°C. After the temperature is constant, put the surface-treated ZTA ceramic particles into the ro...

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Abstract

The invention discloses a method for carrying out chemical nickel-plating on the surfaces of ZTA ceramics in ionic liquid. The method includes the steps of carrying out surface pretreatment on ZTA ceramic particles, preparing chemical nickel-plating solutions containing the ionic liquid, adding the chemical nickel-plating solutions into a rotary plating bath for heating the chemical nickel-plating solutions, placing the ZTA ceramic particles with clean surfaces into the rotary plating bath after the temperature becomes constant, slowly rotating the rotary plating bath and carrying out chemical nickel-plating. According to the method, the ionic liquid is adopted in the chemical nickel-plating solutions, the plating speed is lowered, and the defects that plating solutions are unstable and plating of the surfaces of the ceramic particles is not uniform are overcome; in addition, the problem that plating of the large-particle-diameter ZTA ceramic particles are not uniform is effectively solved through the rotary stirring method, the wetting ability of the ZTA ceramic particles and molten metal is improved through plating on the surfaces of the ZTA ceramic particles, and the bonding strength of the ZTA ceramic particles and metallic matrixes is improved.

Description

technical field [0001] The invention relates to the technical field of metal matrix composite materials, in particular to a method for electroless nickel plating on the surface of ZTA ceramics in ionic liquid. Background technique [0002] Ceramic-metal composite materials have become a research hotspot both at home and abroad due to their combination of high strength, good plasticity and toughness of metals and high hardness and high wear resistance of ceramic materials. Zirconia toughened alumina ceramic ZTA is widely used in the field of wear-resistant materials because the uniformly dispersed zirconia particles inside can improve the wear performance of wear-resistant parts and ensure its overall toughness. In particular, related foreign products have already been used in industry, entered the Chinese market and formed a monopoly. However, due to the poor wettability of ZTA and molten steel, it is quite difficult to prepare ZTA / steel composites without die casting. At ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36C23C18/18
CPCC23C18/1639C23C18/1687C23C18/1882C23C18/36
Inventor 汝娟坚冯晶蒋业华周荣
Owner KUNMING UNIV OF SCI & TECH
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