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Preparation method for improving mechanical property of aluminum-based composite through synergistic reinforcement of carbon nanotube and graphene

A technology of carbon nanotubes and composite materials, applied in metal material coating process, gaseous chemical plating, coating, etc., can solve the problems that carbon nanotubes and graphene-reinforced aluminum-based composite materials have no effect, and achieve improvement Effects of load transfer efficiency, strength improvement, and mechanical performance improvement

Inactive Publication Date: 2019-03-08
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to many problems such as dispersibility, the prepared carbon nanotubes and graphene-reinforced aluminum matrix composites have not achieved ideal results.

Method used

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  • Preparation method for improving mechanical property of aluminum-based composite through synergistic reinforcement of carbon nanotube and graphene
  • Preparation method for improving mechanical property of aluminum-based composite through synergistic reinforcement of carbon nanotube and graphene
  • Preparation method for improving mechanical property of aluminum-based composite through synergistic reinforcement of carbon nanotube and graphene

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Embodiment 1

[0020] (1) First, nickel powder, sucrose and dispersant are placed in 150ml deionized water, then the weighed carbon nanotubes are placed in 25ml water, put into a cell pulverizer for ultrasonic dispersion, and then the carbon nanotube solution is placed in Put it into the mixed solution of nickel powder, sucrose and dispersant, stir and heat in a stirrer, the heating temperature is 120°C, when the water evaporates, the mixed powder is obtained. Then the mixed powder was dried in a vacuum oven at a temperature of 70°C.

[0021] (2) Put the mixed powder obtained in step 1 into a tube furnace for chemical synthesis, the synthesis atmosphere is a mixed gas with a ratio of argon to hydrogen of 2:1 to 3:1, the synthesis temperature is 950°C, and the heating rate is 5°C / min~10°C / min. After the reaction, the sample is cooled rapidly to obtain a mixed powder. Put the powder obtained after the reaction into the ferric chloride corrosion solution to fully corrode, knowing that the nick...

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Abstract

The invention relates to a preparation method for improving the mechanical property of an aluminum-based composite through synergistic reinforcement of a carbon nanotube and graphene. The preparationmethod comprises the following steps that a carbon nanotube-graphene composite reinforced phase is prepared, specifically, sucrose serving as a carbon source, nickel powder serving as a template and pluronic F127 serving as a dispersant are dissolved in deionized water together with the carbon nanotube to be fully stirred, and a mixed solution is obtained; the mixing solution is heated while beingstirred, thus the water is fully evaporated, and mixed powder is obtained; the obtained mixed powder is placed in an ark, and then the ark is placed in a constant temperature area of a high-temperature tubular furnace for a chemical vapor deposition reaction; a reaction product is placed in a ferric chloride corrosive solution to be fully corroded; and the carbon nanotube-graphene reinforced aluminum-based composite is formed.

Description

technical field [0001] The invention relates to a preparation method for improving the mechanical properties of an aluminum-based composite material by using a cold pressing-sintering forming method, and belongs to the field of powder metallurgy. Background technique [0002] Since metal matrix composites were first proposed many years ago, metal matrix composites have received extensive attention due to their excellent physical and mechanical properties. At present, metal matrix composites are widely used in aerospace and other civil and defense industries. Among them, the application of aluminum matrix composites is widely used due to its good ductility, strong machinability, high electrical conductivity, high thermal conductivity, and good corrosion resistance. However, due to the rapid development of industry in recent years, the requirements for the comprehensive performance of aluminum and its alloys are getting higher and higher, so the traditional preparation and st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/05B22F9/04B22F3/10B22F3/20C23C16/26
CPCB22F3/1007B22F3/20B22F9/04B22F2003/208B22F2009/043B22F2998/10C22C1/05C22C21/00C22C26/00C22C2026/002C23C16/26B22F3/02
Inventor 何春年杨立壮赵乃勤沙军威师春生唐宇
Owner TIANJIN UNIV
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