Highly-ordered single-piece copper-based porous material and preparation method thereof

Abstract

The invention provides a highly-ordered single-piece copper-based porous material and a preparation method thereof and relates to a single-piece copper-based porous material. The preparation method comprises the following steps: preparing the raw materials of the single-piece copper-based porous material according to the atom ratios of Cu50Fe[50-x]Cox, Cu50Fe[50-x]Nix and Cu50Fe[50-x]Mnx, wherein x is 1-20at.%; smelting prepared alloys, starting a magnetic stirring button, and cooling after uniformly smelting; cutting a smelted Cu-Fe-X system alloy into slices by adopting a line cutting machine, carrying out thermal treatment after polishing, and quenching, wherein X is Co, Ni or Mn; pretreating a sample subjected to thermal treatment in a hydrochloric acid solution and then placing in an electrochemical workstation for electrochemical corrosion, wherein the alloy is connected with a positive electrode of a power supply, pure copper is connected with a negative electrode, and a sulfur acid solution is used as an electrolyte and placed in an electrochemical device; and cleaning the alloy subjected to electrochemical corrosion, and blow-drying so as to obtain a product. The single-piece copper-based porous material has the advantages of high order degree and controllable pore diameter size and distribution.

Description

Technical field [0001] The invention relates to a single piece of copper-based porous material, in particular to a single piece of copper-based porous material prepared by a dealloying method with orderly pore arrangement. By controlling the alloy composition and heat treatment process, the pores in the porous sheet material are realized The degree of order and transparency are controllable. Background technique [0002] Dealloying, that is, selective corrosion, refers to the large difference in electrode potential between alloy components, and the electrochemically active elements in the alloy selectively dissolve into the electrolyte under the action of the electrolyte, leaving the more stable element corrosion Process ([1] Tan Xiulan, Tang Yongjian, Liu Ying, etc. Dealloying to prepare nanoporous copper. Strong laser and particle beam 2009, 21(1)). The porous metal material prepared by the dealloying method has small and uniform pores. In recent years, it has attracted much a...

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Problems solved by technology

However, this method uses mechanical stamping and perforation of the copper strip. The size and distribution of the holes are limited by the size of the drill bit, and after mechanical stamping, the copper strip has internal stress and the strength of the material will also be affected.

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