Graphene-reinforced titanium-based nanocomposite material and preparation method

A nano-composite material and composite material technology, applied in the field of graphene-reinforced titanium-based nano-composite materials and its preparation, can solve the problems of difficult compounding of graphene, achieve the effects of increasing bulk density, precise process parameter control, and improving mechanical properties

Active Publication Date: 2018-01-09
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose an improved powder sintering process to prepare graphene-reinforced titanium-based nanocomposites for the problem that graphene is difficult to composite to the titanium alloy material matrix

Method used

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  • Graphene-reinforced titanium-based nanocomposite material and preparation method
  • Graphene-reinforced titanium-based nanocomposite material and preparation method
  • Graphene-reinforced titanium-based nanocomposite material and preparation method

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Effect test

Embodiment 1

[0032] (1) Add 1.5 g of feathery and translucent graphene oxide nanosheets prepared by redox method to 300 ml of absolute ethanol and stir for 20 minutes, and then use an ultrasonic cell pulverizer to disperse for more than 30 minutes to prepare graphene oxide solution;

[0033] (2) Stir and mix the 1# titanium alloy powder with a particle size of 53 μm to 106 μm and an oxygen content of 800 ppm and graphene oxide solution prepared by the argon atomization method for 30 minutes to 180 minutes under argon protection to form graphene oxide and A mixed slurry of titanium alloy powder, then dried the mixed slurry in an oven at 60° C. for 10 h to obtain graphene oxide and titanium alloy composite powder;

[0034] (3) Put the composite powder into the graphite mold in the cavity of the plasma discharge sintering system, adjust the pressure control button, apply an initial pressure of 1.5KN to the graphene oxide and titanium alloy composite powder, and carry out vacuum treatment at t...

Embodiment 2

[0039](1) Add 3.0 g of graphene oxide nanosheets to 500 ml of absolute ethanol and stir for 25 minutes, then use an ultrasonic cell pulverizer to disperse and process for more than 30 minutes to prepare a graphene oxide solution;

[0040] (2) Stir and mix the 2# titanium alloy powder with a particle size of 100 μm to 200 μm prepared by the argon atomization method and the graphene oxide solution for 30 minutes to 180 minutes under the protection of argon to form a mixture of graphene oxide and titanium alloy powder slurry, and then the mixed slurry was dried in an oven at 60° C. for 10 h to obtain graphene oxide and titanium alloy composite powder;

[0041] (3) Put the composite powder into the graphite mold in the cavity of the plasma discharge sintering system, adjust the pressure control button, apply an initial pressure of 1.5-2.0KN to the graphene oxide and titanium alloy composite powder, and perform vacuuming treatment at the same time: vacuumize at room temperature 30m...

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Abstract

The invention belongs to the technical field of graphene composite materials and relates to a titanium-based nanocomposite material reinforced through graphene and a preparation method, in particularto a graphene-reinforced titanium-based nanocomposite material and a preparation method. Firstly, oxidized graphene nanosheets of 0.01 wt%-1.0 wt% of titanium alloy powder are weighed to be added intoabsolute ethyl alcohol to be stirred and mixed, then disperse treatment is conducted through an ultrasonic cell pulverizer, and an oxidized graphene solution is prepared; then the titanium alloy powder with the alloying element content being larger than 10 wt% and the oxidized graphene solution are stirred and mixed under inert protection, and oxidized graphene and titanium alloy powder compositepowder is obtained; and finally, the composite powder is loaded into a graphite mold to be sintered, through vacuum pumping and sintering forming, oxidized graphene is basically decomposed to form graphene, and therefore the graphene-reinforced titanium-based nanocomposite material with the excellent mechanical property is prepared. In the graphene-reinforced titanium-based nanocomposite material, the graphene is uniformly dispersed, and the preparation method is simple, efficient and suitable for batch preparation.

Description

technical field [0001] The invention belongs to the technical field of graphene composite materials, and relates to a graphene-reinforced metal-based nanocomposite material and a preparation method, in particular to a graphene-reinforced titanium-based nanocomposite material and a preparation method. Background technique [0002] Graphene is a hexagonal honeycomb lattice two-dimensional material formed by hybridization of carbon atoms with sp2 electron orbitals. It is the thinnest but hardest nanomaterial known so far. In order to better apply the excellent properties of graphene, since graphene composite materials were reported in 2006, a variety of graphene composite materials have received extensive attention in the past decade, and have become one of the most promising development directions for graphene applications. [0003] Compared with graphene-reinforced polymer-based nanocomposites, the research and development of graphene-reinforced metal-based nanocomposites is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C32/00C22C1/05
Inventor 弭光宝沙爱学蔡建明张晓艳
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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