Copper-based surface porous structure and manufacturing method thereof

Abstract

The invention provides a copper-based surface porous structure and a manufacturing method thereof. The copper-based surface porous structure is characterized in that the surface is of a porous structure with a pore size of micron and is metallurgically combined with a copper base. The copper-based surface porous structure has dual properties of function and structure, and has the characteristics of large specific surface area, high thermal conductivity and good electrical conductivity. The copper-based surface porous structure is conducive to thermal conductivity or electrical conductivity, and can be widely used in the fields of heat exchange, catalytic reduction, detection and sensing and the like. The manufacturing method of the copper-based surface porous structure comprises the following steps that firstly, a copper-manganese alloy layer is prepared on a copper plate by adopting a laser alloying technology and taking manganese powder as a raw material; and then manganese elementsin the alloy layer are removed by using a chemical dealloying method to obtain the surface porous structure.

Description

technical field [0001] The invention relates to a copper-based surface porous structure and its manufacture, and belongs to the field of advanced manufacturing technology. Background technique [0002] Metal porous surfaces have dual properties of function and structure, and have the characteristics of large specific surface area, high thermal conductivity, and good electrical conductivity. They can be widely used in heat exchange, catalysis, detection and sensing, and other fields. At present, the manufacturing methods of metal porous surfaces mainly include flame spraying method, electroplating method, mechanical processing method, sintering method, casting method, deposition method and other methods. The thickness and pore size of the prepared porous surface are large, and the uniformity and consistency of pore distribution Poor sex. [0003] Dealloying is selective corrosion, which refers to a method of selectively removing one or more components in the alloy by chemica...

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Problems solved by technology

[0004] In order to solve the problems of large pore size, poor uniformity and poor consistency of pore distribution in the metal surface porous structure prepared by traditional methods, the present invention proposes a copper-based surface porous structure and its manufacturing method

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