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Method for electroplating nickel -titanium diboride-rare-earth oxide composite coating

A rare earth oxide, titanium diboride technology, applied in coatings, electrolytic coatings, etc., can solve the problem of no composite coating and achieve the effect of improving wear resistance

Inactive Publication Date: 2010-10-27
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nickel-rare-earth alloy coating is mixed with solid titanium diboride particles, which can improve the coating's wear resistance, corrosion resistance, hardness, self-lubrication, etc., but there is no practical application of nickel-titanium diboride-rare earth oxide composite coating. to report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 5g of titanium diboride particles with a particle size of 5 μm in a 100mL beaker, add 10mL of acetone, stir for 5min, filter with suction, put the titanium diboride particles in a 100mL beaker, add 6mol L -1 10mL of hydrochloric acid solution, soaked for 0.2h, filtered with suction, washed with water until neutral, and dried in an oven at 50°C for 5h. Weigh 1 g of lanthanum oxide particles with a particle size of 5 μm in a 50 mL beaker, add 5 mL of acetone, stir for 5 min, and filter with suction. Add 250g of nickel sulfate, 30g of nickel chloride, and 25g of boric acid into a 2L beaker, add 985mL of water to dissolve to form a transparent nickel sulfate-nickel chloride-boric acid mixture, adjust the pH of the solution to 3 with sodium bicarbonate solution, and transfer it to 1L In a volumetric flask, dilute to the mark with water. Put the titanium diboride and lanthanum oxide particles treated above in a mortar, add 0.01g of cetyltrimethylammonium bromide surfac...

Embodiment 2

[0020] Weigh 50g of titanium diboride particles with a particle size of 100nm in a 200mL beaker, add 50mL of acetone, stir for 5min, filter with suction, put the titanium diboride particles in a 200mL beaker, add 2mol L -1 50mL of hydrochloric acid solution, soak for 1h, filter with suction, wash with water until neutral, and dry in an oven at 100°C for 0.5h. Weigh 10 g of neodymium oxide particles with a particle size of 10 nm into a 50 mL beaker, add 10 mL of acetone, stir for 5 min, and filter with suction. Add 300g of nickel sulfate, 60g of nickel chloride, and 50g of boric acid into a 2L beaker, add 985mL of water to dissolve to form a transparent mixture of nickel sulfate-nickel chloride-boric acid, adjust the pH of the solution to 6 with sodium bicarbonate solution, and transfer it to 1L In a volumetric flask, dilute to the mark with water. Put the titanium diboride and neodymium oxide particles treated above in a mortar, add 0.4g cetyltrimethylammonium bromide and 0.5...

Embodiment 3

[0022] Weigh 25g of titanium diboride particles with a particle size of 1 μm in a 100mL beaker, add 25mL of acetone, stir for 5min, filter with suction, put the titanium diboride particles in a 100mL beaker, add 4mol L -125mL of hydrochloric acid solution, soaked for 0.4h, filtered with suction, washed with water until neutral, and dried in an oven at 80°C for 2h. Weigh 2 g of gadolinium oxide particles with a particle size of 60 nm and 2 g of samarium oxide particles with a particle size of 60 nm in a 50 mL beaker, add 5 mL of acetone, stir for 5 min, and filter with suction. Add 250g of nickel sulfate, 60g of nickel chloride, and 50g of boric acid into a 2L beaker, add 985mL of water to dissolve to form a transparent nickel sulfate-nickel chloride-boric acid mixture, adjust the pH of the solution to 5 with sodium bicarbonate solution, and transfer it to 1L In a volumetric flask, dilute to the mark with water. Put the titanium diboride, gadolinium oxide and samarium oxide pa...

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PUM

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Abstract

The invention discloses a method for electroplating a nickel-titanium diboride-rare earth oxide composite plating coat. The method comprises the following steps: (a) titanium diboride microparticle is treated by acetone and hydrochloric acid, and then is washed to neutrality by water and is dried; (b) rare earth oxide microparticle is treated by acetone; (c) nickel sulfate, nickel chlorite and boric acid are dissolved by water, and the pH value of the solution is adjusted by sodium bicarbonate solution so as to prepare nickel sulfate-nickel chlorite-boric acid mixed solution; (d) the titaniumdiboride microparticle, the rare earth oxide and the mixed solution of the nickel sulfate-nickel chlorite-boric acid are mixed with a surface-active agent and then are ground inside a mortar; then the mixture is fed into a new container, and the mixed solution of the nickel sulfate-nickel chlorite-boric acid is added continuously and stirred mechanically; and the solution is treated by ultrasonicwave so as to prepare an electroplate liquid; and (e) a plating part is put in the electroplate liquid so as to carry out electroplating. The nickel-titanium diboride-rare earth oxide composite plating coat obtained by electroplating has obviously increased hardness and abrasion resistance.

Description

technical field [0001] The invention relates to a method for electroplating a composite coating, in particular to a method for electroplating a nickel-titanium diboride-rare earth oxide composite coating. Background technique [0002] Composite coating is to add insoluble solid particles to the ordinary plating solution and make them fully suspended in the plating solution, or take necessary measures to reasonably arrange the particles on the surface of the substrate, and at the same time to reduce the metal ion cathode, the particles can be wrapped. The process of covering it into the coating. This special coating mixed with solid particles is a composite coating. The composite coating is to strengthen the properties of the original metal coating while maintaining the properties of the original matrix metal coating, and to modify the original coating, which can obtain wear resistance, corrosion resistance, catalysis, magnetic conductivity, photocatalytic activity, point C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D15/00
Inventor 刘小珍陈捷
Owner SHANGHAI INST OF TECH