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Preparation method of copper-based graphene composite material and copper-based graphene composite material

A composite material and layered composite material technology, applied in the preparation of copper-based graphene composite materials, the field of copper-based graphene composite materials, can solve the problems of low electrical conductivity of copper-based graphene composite materials, can not meet the requirements, etc. The effect of reducing scattering and improving conductivity

Inactive Publication Date: 2019-08-02
CRRC IND INST CO LTD
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  • Application Information

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Problems solved by technology

[0005] In view of this, the application provides a preparation method of a copper-based graphene composite material and a copper-based graphene composite material to solve the problem that the copper-based graphene composite material prepared by the existing method has a low electrical conductivity and cannot meet the requirements of the copper-based graphene composite material. asked questions

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  • Preparation method of copper-based graphene composite material and copper-based graphene composite material
  • Preparation method of copper-based graphene composite material and copper-based graphene composite material

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[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0034] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a preparation method of a copper-based graphene composite material. The preparation method comprises the following steps that an original plate-shaped copper substrate is pretreated by adopting an electrochemical polishing process to obtain a pretreated copper substrate; graphene is grown on the upper and lower surfaces of the pretreated copper substrate by adopting a chemical vapor deposition process to obtain a graphene-coated copper substrate; and under the condition that the sintering temperature is 800-950 DEG C, the sintering pressure is 30-150 MPa and the sintering time is 10-30 min, hot-pressing sintering treatment is carried out on at least one piece of graphene-coated copper substrate to obtain the copper-based graphene composite material, wherein the copper substrate is in a single crystal state in the thickness direction of the copper-based graphene composite material and has a preferred orientation of (111) crystal plane. The preparation method of the copper-based graphene composite material can be used for preparing the copper-based graphene composite material with relatively high electrical conductivity.

Description

technical field [0001] The present application relates to the technical field of composite materials, in particular to a preparation method of a copper-based graphene composite material and a copper-based graphene composite material. Background technique [0002] In recent years, with the rapid development of modern technology, the performance requirements of copper-based composite materials are getting higher and higher, for example, their electrical conductivity is required to be higher than that of pure silver. The extremely high electrical conductivity and electron mobility of graphene provide the possibility to improve the electrical conductivity of copper-based composites. [0003] At present, the solid carbon source is usually dispersed on the surface of the spherical copper powder, and then the solid carbon source is converted into graphene growing along the surface of the spherical copper powder by chemical vapor deposition technology to obtain a graphene-copper com...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/26C23C16/02C25F3/22C22C1/10
CPCC22C1/10C23C16/0227C23C16/26C25F3/22
Inventor 章潇慧陈朝中张丽娇
Owner CRRC IND INST CO LTD
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