Porous foam enhanced metal composite material and preparation method thereof

A metal composite material and porous foam technology, which is applied in metal material coating process, electrolytic coating, liquid chemical plating, etc., can solve the problems of destroying the integrity of CNTs, reducing the plasticity of composite materials, and reducing the performance of composite materials. Improved properties, enhanced strength, good contact effects

Active Publication Date: 2019-06-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this will destroy the integrity of CNTs, the degree of strength improvement is low, and the bonding force between the modified CNTs and the metal is weak. Physically dispersed CNTs will have agglomeration problems during powder metallurgy sintering, resulting in a decline in the performance of composite materials. At the same time, It may also occur that the plasticity of the composite material is significantly reduced relative to the matrix

Method used

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  • Porous foam enhanced metal composite material and preparation method thereof
  • Porous foam enhanced metal composite material and preparation method thereof
  • Porous foam enhanced metal composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of the porous foam reinforced metal composite material of the present invention specifically comprises the following steps:

[0033] (1) Preparation of electroless silver plating and reducing agent solution

[0034] In the silver nitrate solution with a concentration of 8g / L, add ammonia water with a mass fraction of 25% until clarification to obtain the main salt solution A; add glucose to deionized water and set the volume to 10ml, so that the concentration of the reducing agent is 100g / L, and the reduction is obtained. agent solution B;

[0035] (2) Preparation of electroplating solution with copper sulfate pentahydrate as the main salt

[0036] Carbon nanotubes are prepared with deionized water to a concentration of 10g / L, and ultrasonically dispersed for 30min for later use; copper sulfate pentahydrate is prepared with deionized water to a concentration of 100g / L, and then added concentrated sulfuric acid with a concentration of 60g / L, the c...

Embodiment 2

[0041] The preparation method of the porous foam reinforced metal composite material of the present invention specifically comprises the following steps:

[0042] (1) Preparation of electroless silver plating and reducing agent solution

[0043] Add ammonia water with a mass fraction of 25% to the silver nitrate solution with a concentration of 9 g / L until clarification to obtain the main salt solution A; add glucose to deionized water and dilute to 10 ml. The concentration of the reducing agent is 90g / L, and the reducing agent solution B is obtained;

[0044] (2) Preparation of electroplating solution with copper sulfate pentahydrate as the main salt

[0045] Carbon nanotubes are formulated with deionized water to a concentration of 8g / L, and ultrasonically dispersed for 30min for later use; copper sulfate pentahydrate is formulated with deionized water to a concentration of 140g / L, and then added with a concentration of concentrated sulfuric acid of 50g / L, the concentration...

Embodiment 3

[0049] The preparation method of the porous foam reinforced metal composite material of the present invention specifically comprises the following steps:

[0050] (1) Preparation of electroless silver plating and reducing agent solution

[0051] Add ammonia water with a mass fraction of 25% to the silver nitrate solution with a concentration of 9 g / L until clarification to obtain the main salt solution A; add glucose to deionized water and dilute to 10 ml. The concentration of reducing agent is 160g / L, obtains reducing agent solution B;

[0052] (2) Preparation of electroplating solution with copper sulfate pentahydrate as the main salt

[0053] Carbon nanotubes are formulated with deionized water to a concentration of 6g / L, and ultrasonically dispersed for 30 minutes for subsequent use; copper sulfate pentahydrate is formulated with deionized water to a concentration of 160g / L, and then added with a concentration of concentrated sulfuric acid of 40g / L, the concentration is ...

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Abstract

The invention discloses a porous foam enhanced metal composite material and a preparation method thereof and belongs to the technical field of composite materials. The preparation method comprises thefollowing steps: first, carrying out chemical silvering and preparing a reducer solution; preparing a carbon-containing nanotube electroplating solution taking copper sulfate pentahydrate as main salt; carrying out chemical silvering and electrocoppering (a carbon-containing nanotube) on melamine foam; then carrying out thermal treatment to obtain foam metal carbon-serial copper; filling copper power; tabletting the mixture by a tabletting machine to prepare flakes; and sintering the flakes by an SPS sintering furnace to obtain a final composite material. By taking copper-carbon-serial foam as a framework, the composite material is prepared by means of a copper power filling method. The carbon nanotube is free of large area agglomeration inside, so that the mechanical property of the finally obtained composite material is improved greatly. The composite material has a wider application field. The porous foam enhanced metal composite material is simple in integral process, and used devices are concise and convenient to operate, so that mass production can be achieved.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a porous foam reinforced metal composite material and a preparation method thereof. Background technique [0002] With the development of science and technology, the research of carbon nanotubes (CNTs) reinforced metal matrix composites has also become a hot spot for scholars. As a one-dimensional nanomaterial, CNTs has a special structure (its axial dimension is on the order of microns, its radial dimension is on the order of microns, and the two ends of the tube are sealed), and CNTs are mainly arranged in a hexagonal shape. The carbon atoms form several to tens of layers of coaxial circular tubes, the diameter is generally 2-20nm, it is an ideal reinforcement, because the volume of CNTs is much smaller than most fibers, it will not be destroyed when it is used as a reinforcement matrix continuity. Because of its unique structure, it has excellent mechanical, electrical and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11C25D3/38C25D15/00C23C18/44C23C28/02
Inventor 刘意春汪从珍马俊宾陶静梅鲍瑞谈松林游昕方东李才巨易健宏
Owner KUNMING UNIV OF SCI & TECH
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