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Modified graphene reinforced magnesium matrix metal material and preparation method thereof

A magnesium-based metal and graphene technology, applied in the field of metal materials, can solve the problems of difficult to achieve large-capacity material preparation and product forming, and achieve the effect of improving performance parameters

Inactive Publication Date: 2017-10-20
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the forming methods of graphene-reinforced light metal matrix composites are mostly focused on powder metallurgy, ball milling, hot extrusion, etc., and most of them are in the material preparation stage of laboratory samples. It is difficult to achieve large-capacity material preparation and product forming. Future research It can develop from small-scale trial production in the laboratory to mass production of metal matrix composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A modified graphene reinforced magnesium-based metal material, comprising the following components, the mass fraction percentages are: modified graphene 0.02wt.%, copper 5.9wt.%, silicon dioxide 1.2wt.%, dioxane 1.4wt.% of aluminum, 1.3wt.% of carbon nanotube, 4.5wt.% of nickel, 1.3wt.% of titanium dioxide, 1.3wt.% of lanthanum oxide, and the balance is magnesium.

[0026] A method for preparing a modified graphene reinforced magnesium-based metal material, comprising the following steps:

[0027] (1) Graphene is added in dehydrated alcohol, m / v is 1:15, is placed in ball mill, after dispersing evenly, adds cationic surfactant, sonication 2 hours;

[0028] (2) Place the system after the ultrasonic treatment in step (1) in an oven at 40° C., remove absolute ethanol, and obtain modified graphene;

[0029] (3) Melt pure magnesium, add modified graphene when it is half melted, and keep it warm at 680°C for 30 minutes;

[0030] (4) After adding copper, silicon dioxide, alu...

Embodiment 2

[0035] A modified graphene-reinforced magnesium-based metal material, comprising the following components, the mass fraction percentages are: modified graphene 0.12wt.%, copper 6.8wt.%, silicon dioxide 2.9wt.%, dioxane 2.8wt.% of aluminum, 3.1wt.% of carbon nanotube, 5.6wt.% of nickel, 1.9wt.% of titanium dioxide, 2.2wt.% of lanthanum oxide, and the balance is magnesium.

[0036] A method for preparing a modified graphene reinforced magnesium-based metal material, comprising the following steps:

[0037] (1) Graphene is added in dehydrated alcohol, m / v is 1:20, is placed in ball mill, after dispersing evenly, adds cationic surfactant, sonication 3 hours;

[0038] (2) Place the system after the ultrasonic treatment in step (1) in an oven at 45° C., remove absolute ethanol, and obtain modified graphene;

[0039] (3) Melt pure magnesium, add modified graphene when it is half melted, and keep it warm for 40 minutes at 715°C;

[0040] (4) After adding copper, silicon dioxide, alu...

Embodiment 3

[0045] A modified graphene-reinforced magnesium-based metal material, comprising the following components, the mass fraction percentages are: modified graphene 0.3wt.%, copper 8.8wt.%, silicon dioxide 3.2wt.%, dioxane 3.9wt.% of aluminum, 5.8wt.% of carbon nanotubes, 6.9wt.% of nickel, 2.5wt.% of titanium dioxide, 3.5wt.% of lanthanum oxide, and the balance is magnesium.

[0046] A method for preparing a modified graphene reinforced magnesium-based metal material, comprising the following steps:

[0047] (1) Graphene is added in dehydrated alcohol, m / v is 1:22, is placed in ball mill, after dispersing evenly, adds cationic surfactant, sonication 3 hours;

[0048] (2) Place the system after the ultrasonic treatment in step (1) in an oven at 50° C., remove absolute ethanol, and obtain modified graphene;

[0049] (3) Melt pure magnesium, add modified graphene when it is half melted, and keep it warm for 50 minutes at 730°C;

[0050] (4) After adding copper, silicon dioxide, alu...

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Abstract

The invention discloses a modified graphene reinforced magnesium matrix metal material and a preparation method thereof. The modified graphene reinforced magnesium matrix metal material comprises the following components in percentages by mass: 0.02-0.5wt% of modified graphene, 5.9-11.2wt% of copper, 1.2-4.6wt% of silicon dioxide, 1.4-5.6wt% of aluminum oxide, 1.3-7.8wt% of carbon nanotubes, 4.5-7.9wt% of nickel, 1.3-3.8wt% of titanium dioxide, 1.3-4.6wt% of lanthanum oxide and the balance of magnesium. The mechanical property of the modified graphene reinforced magnesium matrix metal material can still be good at the temperature of minus 20 DEG C; and the performance parameters such as the tensile strength and the elongation of the magnesium matrix metal material are increased, and are higher than the performance parameters of commercial alloy by 7-11%.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to a magnesium-based metal composite material, in particular to a modified graphene-reinforced magnesium-based metal material and a preparation method thereof. Background technique [0002] The special two-dimensional nanostructure of graphene makes it have excellent physical properties and has become a research hotspot in recent years. Graphene is a carbon atom with sp 2 The two-dimensional material with a single atomic layer thickness composed of hybrid orbitals has a theoretical thickness of 0.335 nanometers and has a hexagonal honeycomb structure. It can be wrapped into zero-dimensional fullerenes, rolled into one-dimensional carbon nanotubes, and stacked into three-dimensional graphite. It is the basic unit that constitutes other carbonaceous materials. This special honeycomb lattice of graphene is made up of carbon atoms bonded together by two equivalent σ bonds, and because of ...

Claims

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Application Information

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IPC IPC(8): C22C23/00C22C32/00C22C1/10C22F1/06
CPCC22C1/1036C22C23/00C22C26/00C22F1/06C22C2026/008C22C2026/002C22C1/1052
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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