Preparation method of carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption

An aluminum composite material, carbon nanotube technology, applied in metal material coating process, gaseous chemical plating, coating and other directions, can solve the problem of difficult to achieve functional structure integration of foamed aluminum, low mechanical properties and buffer energy absorption performance, Complex preparation process and other problems, to achieve the effect of large stress, excellent mechanical properties, and improved energy absorption rate

Active Publication Date: 2015-09-16
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for preparing a carbon nanotube reinforced aluminum foam composite material for vibration reduction and energy absorption, which is a catalyst synthesized by using urea as a pore-forming agent and nickel as a carbon nanotube. A preparation method for synthesizing carbon nanotube-reinforced foamed aluminum composite materials for vibration damping and energy absorption, which overcomes the structural defects of the foamed aluminum materials prepared in the prior art, low mechanical properties and cushioning and energy absorption properties, high density, and no It has the characteristics of light weight, and the preparation process is complicated, the cost is high, and it is difficult to realize the integration of the functional structure of aluminum foam used as an energy-absorbing material.

Method used

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  • Preparation method of carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption
  • Preparation method of carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption
  • Preparation method of carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption

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Effect test

Embodiment 1

[0032] The first step, the preparation of the mixed powder of nickel nitrate, urea and aluminum powder:

[0033] First, put the spherical urea particles with a particle size of 0.45mm in an electric heating constant temperature drying oven, and dry them at 60°C for 1 hour. Put the nickel nitrate particles in an electric heating constant temperature drying oven, and dry them at 35°C for 1 hour. Ball mill 30min with the rotating speed of 200rpm / min on the planetary ball mill, be nickel nitrate according to mass ratio: the ratio of aluminum powder=0.001, take the atomized aluminum powder that the nickel nitrate after ball milling and particle diameter are 40 μ m, put the two Put into the ball mill jar, carry out ball milling 30min with the rotating speed of 200rpm / min on the ball mill, obtain the powder that nickel nitrate and aluminum powder evenly mix, according to volume ratio be aluminum powder: the ratio of urea=0.11:1 takes by weighing the dried urea granules , mixed with t...

Embodiment 2

[0043] The first step, the preparation of the mixed powder of nickel nitrate, urea and aluminum powder:

[0044] First, put spherical urea particles with a particle size of 1.2mm in an electric heating constant temperature drying oven, and dry them at 70°C for 1.5h. Put the nickel nitrate particles in an electric heating constant temperature drying oven, and dry them at 40°C for 1.5h. Nickel particle is ball milled 45min with the rotating speed ball mill of 200rpm / min on the planetary ball mill, is nickel nitrate according to mass ratio: the ratio of aluminum powder=0.01, takes by weighing the nickel nitrate after ball milling and particle diameter and is the atomized aluminum powder of 50 μ m, and two put into the ball mill tank, carry out ball mill 45min with the rotating speed of 200rpm / min on the ball mill, obtain the powder that nickel nitrate and aluminum powder evenly mix, be aluminum powder according to volume ratio: the ratio of urea=2:1 takes by weighing after drying ...

Embodiment 3

[0051] The first step, the preparation of the mixed powder of nickel nitrate, urea and aluminum powder:

[0052] First, put the spherical urea particles with a particle size of 2mm in an electric heating constant temperature drying oven, and dry them at 80°C for 2h. Put the nickel nitrate particles in an electric heating constant temperature drying oven, and dry them at 45°C for 2h. Ball mill 60min with the rotating speed of 200rpm / min on the planetary ball mill, be nickel nitrate according to mass ratio: the ratio of aluminum powder=0.02, take by weighing the nickel nitrate after ball milling and the atomized aluminum powder that particle diameter is 60 μm, put the two into In the ball mill jar, carry out ball milling 60min with the rotating speed of 200rpm / min on the ball mill, obtain the powder that nickel nitrate and aluminum powder evenly mix, be aluminum powder according to volume ratio: the ratio of urea=4:1 takes by weighing the dried urea granule, Mixing with the mixe...

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Abstract

The invention provides a preparation method of a carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption, relates to the manufacturing of an alloy with open or closed pores, and specifically relates to the preparation method of the carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption with urea as a pore-forming agent and nickel as a carbon nanotube synthesis catalyst; the preparation method comprises the following steps: preparing the mixed powder of nickel nitrate, urea and aluminum powder; preparing a foamed aluminum blank; and preparing the carbon nanotube reinforced foamed aluminum composite material. The method is used for overcoming the defects of structural defect, low mechanical properties and low buffer energy-absorption property, large density and no lightweight property of the foamed aluminum materials prepared in the prior art, complex preparation process, relatively high cost and difficult realization of functional structure integration of the foamed aluminum serving as an energy-absorption material.

Description

technical field [0001] The technical solution of the invention relates to the manufacture of alloys with open or closed pores, in particular to the preparation method of carbon nanotube reinforced foamed aluminum composite materials for vibration reduction and energy absorption. Background technique [0002] In order to ensure the safety and high-efficiency flight of aviation and aerospace vehicles and improve the safety of crashes, a large number of lightweight foam materials need to be used. Among them, as vibration-absorbing and energy-absorbing materials for aircraft crash collisions and space recovery system return module landing processes, they have been extensively studied. attention. At present, the energy-absorbing materials used in aerospace include: honeycomb materials, metal foam materials, polymer materials and composite materials. Due to their good physical characteristics of absorbing mechanical vibration or shock and high-frequency vibration reduction, these...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08C22C21/00C23C16/26
Inventor 李海鹏秦剑坤范佳薇宋晓庆李乐陈松徐扬连鹏豪
Owner HEBEI UNIV OF TECH
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