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Metal-matrix bionic composite material reinforced by carbon nanomaterials, and preparation method thereof

A technology of nano-carbon materials and composite materials, which is applied in the field of metal-based biomimetic composite materials and their preparation, can solve problems such as difficulty in popularization, difficulty in effective regulation of microstructure, and complicated preparation process of composite materials. Easy to promote and achieve performance effects

Active Publication Date: 2018-12-14
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Analysis of the existing metal matrix composites reinforced with nano-carbon materials and their preparation methods shows that the mixing of nano-carbon materials and metal powders is mostly carried out by mechanical ball milling, spray atomization or in solution, and it is difficult to control the process of nano-carbon materials. The orientation of carbon materials makes it difficult to achieve an ideal microscopic orientation structure similar to that of biological materials in the prepared composite materials
Although the use of flake metal powder in the Chinese patent (publication number 102329976A) is beneficial to induce the preferential orientation distribution of graphene along the surface of the powder to form a stacked structure in the composite material, the process relies on the The use and sheeting process of metal powder not only complicates the preparation process of composite materials, but also makes it difficult to popularize
At the same time, the microstructure of the composite material plays an important role in its performance. For example, the staggered connection of nano-carbon materials in three-dimensional space can have a more excellent strengthening and toughening effect on the composite material, but the metal matrix composite material currently prepared It is difficult to effectively control the microstructure of materials

Method used

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  • Metal-matrix bionic composite material reinforced by carbon nanomaterials, and preparation method thereof
  • Metal-matrix bionic composite material reinforced by carbon nanomaterials, and preparation method thereof
  • Metal-matrix bionic composite material reinforced by carbon nanomaterials, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] In this example, the graphene-reinforced metal aluminum-based biomimetic composite material is prepared. The raw materials used mainly include graphene (diameter 5-10 μm, thickness 3-10 nm), flake aluminum powder (average sheet diameter 10 μm, average thickness 0.5 μm), deionized water, sodium lauryl sulfate, hydroxypropyl methylcellulose powder (average particle size 180 μm), polyvinyl alcohol, sucrose, and polyacrylic acid. Such as figure 1 As shown, the specific preparation process is as follows:

[0035] (A) prepare the water-based slurry of graphene and flake aluminum powder

[0036] Take 180g of deionized water and add it to a 500mL plastic jar, add 0.36g of sodium lauryl sulfate powder into the jar, and stir at a speed of 100rpm until the powder is evenly dispersed in the water. Take 0.378g of graphene and slowly add it into a jar, place the jar in an ultrasonic disperser, and perform ultrasonic treatment on it for 2 hours at a power of 100W. Take out the jar ...

Embodiment 2

[0043] In this example, the metal nickel-based biomimetic composite material reinforced with graphene is prepared, and the raw materials used mainly include graphene (diameter 5-10 μm, thickness 3-10 nm), nano-nickel powder (average particle size 50 nm), deionized water , sodium lauryl sulfate, hydroxypropyl methylcellulose (average particle size of 180 μm), polyvinyl alcohol, sucrose and polyacrylic acid. Such as figure 1 As shown, the specific preparation process is as follows:

[0044] (A) water-based slurry for preparing graphene and nano-nickel powder

[0045] The difference between this step and step (A) in Example 1 is the type and consumption of raw materials, specifically: changing the flaky aluminum powder into nano-nickel powder, the consumption is 14.7g, and the consumption of deionized water is 200g, ten The consumption of sodium dialkyl sulfate is 0.4g, the consumption of graphene is 0.3g, the consumption of hydroxypropyl methylcellulose is 1.5g, the consumptio...

Embodiment 3

[0052] In this example, the metal cobalt-based biomimetic composite material reinforced with graphene is prepared, and the raw materials used mainly include graphene (diameter 5-10 μm, thickness 3-10 nm), nano-cobalt powder (average particle size 40 nm), deionized water , sodium lauryl sulfate, hydroxypropyl methylcellulose (average particle size of 180 μm), polyvinyl alcohol, sucrose and polyacrylic acid. Such as figure 1 As shown, the specific preparation process is as follows:

[0053] (A) prepare the water-based slurry of graphene and nano-cobalt powder

[0054] The difference between this step and step (A) in Example 1 is the type and consumption of raw materials, specifically: changing the flake aluminum powder into nano cobalt powder, the consumption is 40g, and the consumption of deionized water is 100g, 12 The consumption of sodium alkyl sulfate is 0.2g, the consumption of graphene is 0.1g, the consumption of hydroxypropyl methylcellulose is 1.5g, the consumption of...

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Abstract

The invention relates to the field of bionic composite materials, and specifically relates to a metal-matrix bionic composite material reinforced by carbon nanomaterials, and a preparation method thereof. The composite material is composed of the carbon nanomaterials and metal, wherein in percentage by volume, the content of the carbon nanomaterials is 0.5%-40%, and the balance is metal; and the composite material microscopically has a bionic oriented structure, and is presented as that the carbon nanomaterials are arranged in a metal matrix in an oriented manner and in the form of sheet layers. According to the metal-matrix bionic composite material reinforced by the carbon nanomaterials, and the preparation method thereof, the metal-matrix bionic composite material reinforced by the carbon nanomaterials is prepared through the process flow of slurry preparation, freeze-casting, vacuum freeze-drying, organic matter removal and compaction treatment. The composite material has the excellent performance of light weight, high strength, wear resistance and the like, and reserves the function characteristics of electromagnetic shielding, electricity conduction, heat conduction and the like of matrix metal; and moreover, the structure and performance of the composite material can be effectively controlled by adjusting a preparation process, and therefore, the composite material has aconsiderable application prospect in the case of being used as a wave absorption material, a structure material and the like.

Description

technical field [0001] The invention relates to the field of biomimetic composite materials, in particular to a metal-based biomimetic composite material reinforced with nano-carbon materials and a preparation method thereof, in particular to a microscopic oriented structure reinforced with graphene, carbon nanotubes or a combination of both Metal matrix biomimetic composite material and its preparation method. Background technique [0002] Industrial development and social progress have continuously put forward higher and higher requirements for the mechanical properties and functions of metal materials, and at the same time put forward many restrictions on the development of materials in terms of light weight, energy saving, environmental protection, and recycling. It is of great significance to optimize the design and preparation of metal materials to achieve their excellent comprehensive mechanical properties such as strength-toughness matching and fatigue resistance, an...

Claims

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Application Information

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IPC IPC(8): B22F3/22B22F1/00B22F3/18B22F3/20B22F3/14B22F3/10C22C21/00C22C19/03C22C19/07C22C38/00C22C1/05C22C33/02
CPCC22C1/05C22C19/03C22C19/07C22C21/00C22C26/00C22C33/02C22C38/00B22F3/1025B22F3/14B22F3/18B22F3/20B22F3/222B22F2003/208B22F2003/185B22F2998/10C22C2026/002B22F1/10
Inventor 刘增乾张健谈国旗张哲峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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