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A kind of MXene reinforced copper-based composite material and preparation method thereof

A technology of copper-based composite materials and body materials, applied in chemical instruments and methods, colloid chemistry, chemical/physical processes, etc., can solve the problems of poor wear resistance and low strength, and achieve excellent mechanical properties, increased strength, and change The effect of interfacial tension

Active Publication Date: 2021-12-28
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its low strength and poor wear resistance limit its development.

Method used

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  • A kind of MXene reinforced copper-based composite material and preparation method thereof
  • A kind of MXene reinforced copper-based composite material and preparation method thereof
  • A kind of MXene reinforced copper-based composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of preparation method of MXene reinforced copper-based composite material, comprises the following steps:

[0036] 1. Preparation of monolayer MXene:

[0037] (1) After mixing Ti, Al, and C powders according to the molar ratio of 3:1.2:2, high-purity ternary layered Ti was prepared by pressureless sintering at 1500°C 3 AlC 2 ceramic bulk material, the prepared Ti 3 AlC 2 Drilling powder for ceramic material to get Ti 3 AlC 2 Ceramic powder. Prepared Ti 3 AlC 2 The ceramic powder is processed through a 325-mesh sieve;

[0038] (2) 1g of prepared Ti 3 AlC 2 Add 10ml of hydrochloric acid with a concentration of 9mol / ml and 1g of lithium fluoride to the ceramic powder, add a magnetic rotor and stir in an oil bath at 35°C for 24 hours to remove Ti 3 AlC 2 Al atomic layer in

[0039] (3) Wash the corroded mixture suspension with 40ml deionized water and centrifuge, pour off the supernatant, repeat several times until the pH value of the supernatant is grea...

Embodiment 2

[0049] A kind of preparation method of MXene reinforced copper-based composite material, comprises the following steps:

[0050] 1. Preparation of monolayer MXene:

[0051](1) After mixing Ti, Al, and C powders according to the molar ratio of 3:1.2:2, high-purity ternary layered Ti was prepared by pressureless sintering at 1350°C 3 AlC 2 ceramic bulk material, the prepared Ti 3 AlC 2 Drilling powder for ceramic material to get Ti 3 AlC 2 Ceramic powder. Prepared Ti 3 AlC 2 The ceramic powder is processed through a 325-mesh sieve;

[0052] (2) 1g of prepared Ti 3 AlC 2 Add 10ml of hydrochloric acid with a concentration of 12mol / ml and 1g of lithium fluoride to the ceramic powder, add a magnetic rotor and stir in an oil bath at 38°C for 24 hours to remove Ti 3 AlC 2 Al atomic layer in

[0053] (3) Wash the corroded mixture suspension with 50ml of deionized water and centrifuge, pour off the supernatant, repeat several times until the pH value of the supernatant is g...

Embodiment 3

[0063] A kind of preparation method of MXene reinforced copper-based composite material, comprises the following steps:

[0064] 1. Preparation of monolayer MXene:

[0065] (1) After mixing Ti, Al, and C powders according to the molar ratio of 3:1.2:2, high-purity ternary layered Ti was prepared by pressureless sintering at 1400°C 3 AlC 2 ceramic bulk material, the prepared Ti 3 AlC 2 Drilling powder for ceramic material to get Ti 3 AlC 2 Ceramic powder. Prepared Ti 3 AlC 2 The ceramic powder is processed through a 325-mesh sieve;

[0066] (2) 1g of prepared Ti 3 AlC 2 Add 15ml of hydrochloric acid with a concentration of 9mol / ml and 1.6g of lithium fluoride to the ceramic powder, add a magnetic rotor and stir in an oil bath at 35°C for 24 hours to remove Ti 3 AlC 2 Al atomic layer in

[0067] (3) Wash the corroded mixture suspension with 40ml of deionized water and centrifuge, pour off the supernatant, repeat several times until the pH of the supernatant is great...

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Abstract

The invention relates to a method for preparing MXene-reinforced copper-based composite materials, which comprises the following steps of preparing MXene colloidal solution 1) sintering M, Al, and C powders to form ceramic powders, 2) placing ceramic powder materials in hydrochloric acid and fluorination Lithium mixed solution or hydrofluoric acid corrosion, clean water to wash corrosion products, use deionized water to prepare suspension, ultrasonic layering, and centrifugation to obtain MXene colloidal solution; preparation of MXene / copper composite material 1) Preparation of copper salt, alkali, glucose 2) Mix the MXene colloidal solution and glucose solution to obtain a mixed solution; 3) Pour the mixed solution and lye into the copper salt solution and emulsify; 4) Rinse the emulsified precipitate with deionized water and use Washing and dehydrating with water and ethanol, then vacuum drying; 5) The dried precipitate powder is reduced in hydrogen, and the reduced powder is obtained by discharge plasma sintering. The MXene / copper composite material obtained by the invention has significantly improved strength and excellent mechanical properties.

Description

technical field [0001] The invention relates to a composite material, in particular to an MXene reinforced copper-based composite material and a preparation method thereof. Background technique [0002] Copper and copper alloys have good plasticity and toughness, excellent electrical and thermal conductivity, easy processing and strong corrosion resistance, and are widely used in the fields of electronics and electrical, mechanical transportation, energy, aerospace and defense industries. But its low strength, poor wear resistance and other shortcomings limit its development. Contents of the invention [0003] In order to improve the mechanical properties of copper-based materials, the present invention provides an MXene-reinforced copper-based composite material. The present invention uses MXene to reinforce copper-based materials. MXene, as a novel two-dimensional layered nano-compound, has a unique two-dimensional layer Shaped structure and large specific surface area,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00B22F9/24B22F3/105C22C1/05C22C1/10C23F1/44C23F1/30B22F9/22
CPCC22C9/00B22F9/24B22F3/105C22C1/05C23F1/44C23F1/30B22F9/22B01J13/00
Inventor 应国兵刘璐胡聪孙铖赵银龙张晨
Owner HOHAI UNIV
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