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Synergistically enhanced copper matrix composite material and preparing method thereof

A technology of copper-based composite materials and copper salts, which is applied in the field of copper-based composite materials and its preparation, and can solve the problems of low copper hardness, limited wide application, and low strength

Active Publication Date: 2019-05-31
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to the common advantages of general metals, copper also has the advantages of high electrical and thermal conductivity and easy processing, but the disadvantages of copper, such as low hardness, low strength, and poor wear resistance, also limit its wide application in industry

Method used

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  • Synergistically enhanced copper matrix composite material and preparing method thereof
  • Synergistically enhanced copper matrix composite material and preparing method thereof
  • Synergistically enhanced copper matrix composite material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] S101: Hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 Mxene was sequentially added into deionized water at a mass ratio of 1:1:1:1, and ultrasonically dispersed at room temperature for 10 minutes to obtain a dispersion; wherein, hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 The mass sum of Mxene is 1.2% of the dispersion;

[0039] S103: Add 1 volume part of the dispersion liquid dropwise to 200 volume parts of copper acetate aqueous solution with a copper ion concentration of 6.4 g / L, stir at a speed of 100 r / min for 5 minutes, then add 20 volume parts with a mass fraction of 5% The NaOH solution, obtains the suspension that comprises copper hydroxide;

[0040] S105: heating the suspension to 50° C., continuing to stir, and adding 1 volume part of hydrazine hydrate solution with a mass fraction of 1% to reduce the copper hydroxide therein to cuprous oxide;

[0041] S107: Filter, wash,...

Embodiment 2

[0046] S101: Hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 Mxene was sequentially added to deionized water at a mass ratio of 1:1:1:2, and ultrasonically dispersed for 20 minutes at room temperature to obtain a dispersion; wherein, hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 The mass sum of Mxene is 0.5% of the dispersion;

[0047] S103: Add 1 volume part of the dispersion liquid dropwise to 200 volume parts of copper acetate aqueous solution with a copper ion concentration of 12.8g / L, stir at a speed of 200r / min for 10min, then add 20 volume parts with a mass fraction of 6% The NaOH solution, obtains the suspension that comprises copper hydroxide;

[0048] S105: heating the suspension to 75° C., continuing to stir, and adding 15 parts by volume of a glucose solution with a mass fraction of 15% to reduce the copper hydroxide therein to cuprous oxide;

[0049] S107: Filter, wash, and dry ...

Embodiment 3

[0053] S101: Hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 Mxene was sequentially added to deionized water at a mass ratio of 1:1:1:3, and ultrasonically dispersed for 30 minutes at room temperature to obtain a dispersion; wherein, hexadecyltrimethylammonium bromide, carbon quantum dots, carbon nanotubes and Ti 3 C 2 The mass sum of Mxene is 0.6% of the dispersion;

[0054] S103: Add 1 volume part of the dispersion liquid dropwise to 200 volume parts of copper acetate aqueous solution with a copper ion concentration of 19.2 g / L, stir at a speed of 300 r / min for 10 min, then add 20 volume parts with a mass fraction of 7% The NaOH solution, obtains the suspension that comprises copper hydroxide;

[0055] S105: heating the suspension to 100°C, continuing to stir, and adding 15 parts by volume of a 20% glucose solution by volume to reduce the copper hydroxide to cuprous oxide;

[0056] S107: Filter, wash, and dry the product obtained...

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Abstract

The invention relates to a synergistically enhanced copper matrix composite material and a preparing method thereof. The synergistically enhanced copper matrix composite material adopts carbon quantumdots, carbon nanotubes and Ti3C2 Mxene as reinforcing phases. The method comprises the steps that an aqueous dispersion of the carbon quantum dots, the carbon nanotubes and the Ti3C2 Mxene is prepared; the dispersion is added into a copper salt aqueous solution, an alkaline solution is added in to form copper hydroxide, and a reducing agent is added to reduce the copper hydroxide into cuprous oxide; filtering, washing and drying are carried out to obtain composite powder, and the cuprous oxide in the composite powder is reduced into copper; and discharge plasma sintering is carried out on thecopper-based composite powder. The dimensionality synergistic action of the carbon quantum dots, the carbon nanotubes and the Ti3C2 Mxene is used, and the copper-based composite material with the significantly-improved mechanical property is obtained; the copper-based composite powder with uniform dispersion and firm combination is obtained by molecular-scale blending; and discharge plasma sintering is adopted so that the Cu grain growth is effectively suppressed.

Description

technical field [0001] The invention relates to a copper-based composite material and a preparation method thereof. Background technique [0002] Copper is a very important industrial material and is widely used in the electrical industry. In addition to the common advantages of common metals, copper also has the advantages of high electrical and thermal conductivity and easy processing. However, the disadvantages of copper, such as low hardness, low strength, and poor wear resistance, also limit its wide application in industry. In order to solve this problem, the methods of second phase strengthening and dispersion strengthening are usually adopted. In recent years, in-situ composite technology has also been applied in the field of copper-based reinforced composite materials because the reaction interface formed during the composite process strengthens the bond between the matrix and the reinforcement. [0003] For example, Chinese patent document CN102978434A discloses ...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C1/10C22C9/00B22F9/22B22F3/105
Inventor 郭圣达陈颢张建波李韶雨
Owner JIANGXI UNIV OF SCI & TECH
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