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Graphene and reaction in-situ nano magnesium oxide particle composite enhanced magnesium-based composite material and preparing method thereof

A technology of nano-magnesium oxide and composite materials, which is applied in the field of graphene-reinforced magnesium-based composite materials and its preparation, can solve the problems of poor graphene dispersion, low interface bonding strength, poor wettability between graphene and magnesium matrix, etc., and achieve improved The effects of interface bonding strength, mechanical properties improvement, and good industrialization prospects

Active Publication Date: 2018-11-06
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problems of poor wettability between graphene and magnesium matrix in existing composite materials, poor graphene dispersibility, and low interfacial bonding strength, and provides a composite reinforced magnesium-based composite material with graphene and reactive self-generated nano-magnesium oxide particles and its preparation method

Method used

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  • Graphene and reaction in-situ nano magnesium oxide particle composite enhanced magnesium-based composite material and preparing method thereof

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specific Embodiment approach 1

[0038] Specific embodiment one: present embodiment graphene and self-generated nano-magnesium oxide particle composite reinforced magnesium-based composite material are made of three kinds of raw materials of oxide, graphene and magnesium matrix, wherein the mass ratio of oxide and graphene is 1: (1-5), graphene accounts for 0.1%-2.0% of the total mass of the three raw materials, and the rest is magnesium matrix.

[0039] The method in this embodiment has low cost, simple equipment requirements, and is green and pollution-free. In the prepared composite material, the graphene is uniformly dispersed, the bonding strength of the interface between the graphene and the magnesium matrix is ​​high, and the composite material has high strength and high elongation.

specific Embodiment approach 2

[0040] Embodiment 2: This embodiment is different from Embodiment 1 in that: the oxide is zinc oxide, aluminum oxide, silicon oxide, nickel oxide, copper oxide or iron oxide. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Embodiment 3: This embodiment is different from Embodiment 1 in that: the magnesium matrix is ​​pure magnesium or a magnesium alloy. Others are the same as in the first embodiment.

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Abstract

The invention discloses a graphene and reaction in-situ nano magnesium oxide particle composite enhanced magnesium-based composite material and a preparing method thereof, relates to a graphene enhanced magnesium-based composite material and a preparing method thereof, and aims at solving the problems that in existing composite materials, graphene and magnesium matrix wettability is poor, graphenedispersibility is poor, and the interface bonding strength is low. The composite material is prepared through three raw materials including oxide, graphene and a magnesium matrix. The method comprises the steps that firstly, stirring casting or powder metallurgy is conducted; and secondly, heat deformation is conducted, and a cast-state composite material or a sintered-state composite material issubjected to hot extrusion or rolling deformation. The interface position of the composite material prepared through the method is free of holes and impure phases, graphene and matrix wettability isgood, and the interface interaction between graphene and a matrix is high. The graphene and reaction in-situ nano magnesium oxide particle composite enhanced magnesium-based composite material and thepreparing method thereof are used in the magnesium-based composite material field.

Description

technical field [0001] The invention relates to a graphene-reinforced magnesium-based composite material and a preparation method thereof. Background technique [0002] With the tremendous development of the global economy, the consumption of traditional metal materials is increasing day by day, and commonly used metal minerals are in short supply year by year. At the same time, problems such as excessive exploitation of energy and environmental pollution have become increasingly serious in economic development, and have become one of the problems that need to be solved urgently in the sustainable development of the country. [0003] The density of magnesium is 1.74g / cm 3 , only 25% of iron, has high specific strength, specific stiffness, excellent shock absorption, recyclable and other characteristics and has become the lightest structural material in the world. Therefore, magnesium and its alloys have broad application prospects in the fields of aerospace, military, tran...

Claims

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Application Information

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IPC IPC(8): C22C23/00C22C1/10C22C1/02C22C1/05B22D17/00C22F1/06
CPCC22C1/058C22C1/0408C22C1/101C22C1/1036C22C23/00C22F1/06B22D17/00C22C1/1052
Inventor 费维栋王黎东王秒
Owner HARBIN INST OF TECH
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