A kind of graphene/nickel-based composite material and preparation method thereof
A composite material and graphene technology, which is applied in the field of graphene-enhanced nickel-based composite materials and its preparation, can solve the problems of graphene-enhanced nickel-based composite materials that have not yet been seen, and achieve the effect of preventing material oxidation, avoiding agglomeration, and excellent performance
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Embodiment 1
[0039] The basic operation steps of present embodiment 1 preparation graphene / copper composite material are as follows:
[0040] Ⅰ) Material composition of graphene / nickel composites
[0041]The material components of the graphene / copper composite material are mainly metal nickel and graphene, wherein the mass fraction of nickel is 99.5wt%; the mass fraction of graphene is 0.5wt%. The raw material of graphene is graphene oxide.
[0042] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )
[0043] 1) taking by weighing 50g of copper-nickel alloy powder and 20ml concentration is the graphene oxide dispersion of 0.015g / ml;
[0044] 2) According to the ball-to-material ratio of 15:1, put grinding balls, nickel powder, graphene oxide dispersion liquid and alcohol into a ball mill tank, and ball mill for 5 hours. As the ball milling progresses, the nickel powder and graphene oxide are fully mixed to obtain a graphene oxide / nickel alcohol mixture.
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Embodiment 2
[0050] The difference from Example 1 is that: this Example 2 adds a hot extrusion process to obtain a graphene / nickel composite wire.
[0051] The basic operation steps of present embodiment 2 preparation graphene / copper composite material are as follows:
[0052] Ⅰ) Material composition of graphene / nickel composites
[0053] The material components of the graphene / copper composite material are mainly metallic nickel and graphene, wherein the raw materials and contents of metallic nickel and graphene are the same as those in Example 1.
[0054] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )
[0055] 1) taking by weighing 50g of copper-nickel alloy powder and 20ml concentration is the graphene oxide dispersion of 0.015g / ml;
[0056] 2) According to the ball-to-material ratio of 15:1, put grinding balls, nickel powder, graphene oxide dispersion liquid and alcohol into a ball mill tank, and ball mill for 5 hours. As the ball milling progresse...
Embodiment 3
[0063] The difference from Example 2 is that in this example, the mass ratio of metallic nickel and graphene in the composite material is changed, and the process parameters are adjusted according to the formula.
[0064] The basic operation steps of present embodiment 3 preparation graphene / copper composite material are as follows:
[0065] Ⅰ) Material composition of graphene / nickel composites
[0066] The material composition of the graphene / copper composite material is mainly metal nickel and graphene, wherein the mass fraction of nickel is 95wt%; the mass fraction of graphene is 5wt%. The raw material of graphene is graphene oxide.
[0067] Ⅱ) Basic steps for preparing graphene / nickel composites (see attached figure 1 )
[0068] 1) taking by weighing 50g of copper-nickel alloy powder and 30ml concentration is the graphene oxide dispersion of 0.088g / ml;
[0069] 2) According to the ball-to-material ratio of 20:1, put grinding balls, nickel powder, graphene oxide dispers...
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