Preparation method and application of oxidized graphene reinforced nickel base composite powder
A composite powder and graphene technology, which is applied in the field of graphene-reinforced nickel-based alloy composite materials, can solve the problems of inability to form complex nickel-based alloy parts, poor graphene dispersion, and low process efficiency, so as to prevent agglomeration, disperse The effect of uniformity and improvement of strengthening efficiency
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[0026] A method for preparing graphene oxide reinforced nickel-based composite material includes the following steps:
[0027] (1) A step of preparing graphene oxide: stir 1.0 g of sodium nitrate, 1.0 g of graphite and 46 mL of concentrated sulfuric acid in an ice water bath for 15 minutes. Slowly add 6.0 g of potassium permanganate in an ice water bath to obtain a purple-green mixed solution, and control the temperature not to exceed 20°C. After removing the ice-water bath, the mixture was stirred in a 35±5°C water bath for 1 hour to form a thick paste. Then, 40 mL of distilled water was slowly added to raise the temperature to 90±5°C, and the mixture was stirred at this temperature for 30 minutes. Finally, add 100mL of distilled water, and then slowly add 6mL of hydrogen peroxide (30wt.%). After the color of the solution changes from dark brown to bright yellow, the resulting mixed solution is washed several times with 3% hydrochloric acid and distilled water until the pH of t...
Example Embodiment
[0045] Example 1
[0046] The embodiment of the present invention provides a method for preparing a graphene-reinforced nickel-based composite material, which is specifically carried out according to the following steps:
[0047] (1) A step of preparing graphene oxide: stir 1.0 g of sodium nitrate, 1.0 g of graphite and 46 mL of concentrated sulfuric acid in an ice water bath for 15 minutes. Slowly add 6.0 g of potassium permanganate in an ice water bath to obtain a purple-green mixed solution, and control the temperature not to exceed 20°C. After removing the ice-water bath, the mixture was stirred in a 35±5°C water bath for 1 hour to form a thick paste. Then, 40 mL of distilled water was slowly added to raise the temperature to 90±5°C, and the mixture was stirred at this temperature for 30 minutes. Finally, add 100 mL of distilled water, and then slowly add 6 mL of hydrogen peroxide (30 wt.%). After the color of the solution changed from dark brown to bright yellow, the result...
Example Embodiment
[0059] Example 2
[0060] The embodiment of the present invention provides a method for preparing graphene-reinforced nickel-based composite material, which is specifically carried out according to the following steps:
[0061] (1) A step of preparing graphene oxide: stir 1.0 g of sodium nitrate, 1.0 g of graphite and 46 mL of concentrated sulfuric acid in an ice water bath for 15 minutes. Slowly add 6.0 g of potassium permanganate in an ice water bath to obtain a purple-green mixed solution, and control the temperature not to exceed 20°C. After removing the ice-water bath, the mixture was stirred in a 35±5°C water bath for 1 hour to form a thick paste. Then, 40 mL of distilled water was slowly added to raise the temperature to 90±5°C, and the mixture was stirred at this temperature for 30 minutes. Finally, add 100 mL of distilled water, and then slowly add 6 mL of hydrogen peroxide (30 wt.%). After the color of the solution changed from dark brown to bright yellow, the resultin...
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