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Graphene/copper composite material and preparation method and application thereof

A composite material, graphene technology, applied in the direction of metal/alloy conductor, metal material coating process, gaseous chemical plating, etc., can solve the problems of low production efficiency, high production cost, poor mechanical properties, etc., to reduce the design performance The effect of improving the quality and improving the conductivity

Active Publication Date: 2019-05-10
CRRC IND INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the material has been improved to a certain extent in terms of electrical conductivity, etc., there are still problems such as relatively poor mechanical properties, relatively low electrical properties, relatively high production costs, and relatively low production efficiency in the actual application process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The present embodiment provides a kind of preparation of graphene / copper composite material, comprising:

[0040] (1) Drawing treatment:

[0041] The forming tool used in this example has a processing shape of V-row grooves with a depth of 10 μm and an interval of 2 mm between grooves. The final shape is to form V-shaped grooves with dense cross structures on the upper and lower surfaces of a 50 μm copper foil substrate. The effective area of ​​the copper substrate after drawing treatment reaches 1.6 times the surface area of ​​the original copper foil;

[0042] (2) Polishing treatment:

[0043] Pretreating the drawn copper substrate by an electrochemical polishing process to obtain a pretreated copper substrate;

[0044] (3) Graphene growth:

[0045] Place the copper substrate polished in step (3) in a tube furnace, introduce a solid carbon source, adjust the flow of hydrogen to 15 sccm, the flow of argon to 200 sccm, keep the pressure in the tube < 1 Torr, and carr...

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Abstract

The invention relates to a graphene / copper composite material and a preparation method and application thereof. The graphene / copper composite material preparation method comprises the steps that (1),drawing treatment is performed on a copper substrate; (2), polishing treatment is performed on the copper substrate obtained by the drawing treatment; and (3), a carbon source is introduced in, graphene is grown uniformly on the surface of the copper substrate obtained in the step (2), hot pressing sintering is performed for densification, and the graphene / copper composite material is obtained. Bymeans of the graphene / copper composite material preparation method, the obtained graphene / copper composite material has excellent electrical and mechanical properties and can be taken as a conductormaterial inside motors, transformers, current transformers, cables and other equipment, especially applied to the motors, the graphene / copper composite material can further improve the overall performance of the motors, and the goals of high efficiency and energy conservation are realized.

Description

technical field [0001] The invention relates to a graphene / copper composite material and its preparation method and application, belonging to the technical field of conductive composite materials. Background technique [0002] Copper-based materials (pure copper, copper alloys, copper-based composite materials, etc.) have always been important conductor materials and are widely demanded in the fields of electric power, transportation, industrial equipment, and electronic information. However, in the power field, the Joule heat caused by the resistance of copper inevitably reduces the utilization efficiency of electric energy, the performance and stability of device equipment. [0003] In recent years, with the increasingly severe energy and environmental problems and the development of high-tech, higher requirements have been placed on the conductivity of copper-based materials. The development of ultra-high conductive copper-based materials has important economic value and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/26C23C16/56C23C16/02H01B1/02
Inventor 章潇慧李要君陈朝中张丽娇龚明
Owner CRRC IND INST CO LTD
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