Method of manufacturing metal composite powder by wire explosion in liquid and multi carbon layer coated metal composite powder

Patent metadata

Field	Value
Publication number	US-2016318099-A1
Application number	US-201614994386-A
Country	US
Kind code	A1
Filing date	Jan 13, 2016
Priority date	Jan 13, 2015
Publication date	Nov 3, 2016
Grant date	—

Abstract

Disclosed are a method of producing a metal composite powder by wire explosion in a liquid and a metal composite powder that is coated with a multi carbon layer. The production method includes a process of forming a first carbon layer on a surface of a metal wire consisting of a first metal, a process of forming a metal layer consisting of a second metal, which is different from the first metal, on a surface of the first carbon layer, and a process of forming a metal composite powder coated with a multi carbon layer by wire exploding the metal wire containing the first carbon layer and the metal layer formed on a surface thereof in a solution.

First claim

1 . A method of producing a metal composite powder by electrically exploding a wire in a liquid, the method comprising:
forming a first carbon layer on a surface of a metal wire consisting of a first metal; forming a metal layer consisting of a second metal, which is different from the first metal, on a surface of the first carbon layer; and forming a metal composite powder coated with a multi carbon layer by wire exploding the metal wire that contains the first carbon layer and the metal layer formed on a surface thereof in a solution.

2 . The method of claim 1 , further comprising:
forming a second carbon layer on the metal layer, prior to the forming of the metal composite powder coated with the multi carbon layer by wire exploding the metal wire in the solution.

3 . The method of claim 1 , wherein the metal layer is formed by electroplating or electroless plating.

4 . The method of claim 1 , wherein the first metal and the second metal are different metals from each other, and each thereof are independently any one selected among copper (Cu), nickel (Ni), aluminum (Al), iron (Fe), zinc (Zn), gold (Au), silver (Ag), cobalt (Co), and chromium (Cr).

5 . The method of claim 1 , wherein the multi carbon layer contains graphene (or graphite) that includes 2 to 20 carbon atom layers.

6 . The method of claim 1 , wherein the solution is an organic solution, an inorganic solution, or an organic-inorganic mixed solution.

7 . A method producing a metal composite powder by electrically exploding a wire in a liquid, the method comprising:
forming, on a surface of a metal wire consisting of a first metal, a metal layer consisting of a second metal that is different from the first metal; forming a carbon layer on a surface of the metal layer; and forming a metal composite powder coated with a multi carbon layer by wire exploding the metal wire containing the metal layer and the carbon layer formed on a surface thereof in a solution.

8 . The method of claim 7 , wherein the first metal and the second metal are different metals from each other, and each thereof is independently any one selected among Cu, Ni, Al, Fe, Zn, Au, Ag, Co, and Cr.

9 . The method of claim 1 , wherein the metal wire is a Cu wire, the metal layer includes a Ni layer, and a Ni content of the metal composite powder in a region in which the metal composite powder and the multi carbon layer form an interfacial surface is higher than a Ni content at a center of the metal composite powder.

10 . A metal composite powder that is coated with a multi carbon layer, the metal composite powder comprising:
a metal composite particle, which contains the first metal and the second metal, which are different from each other; and a multi carbon layer that is formed on a surface of the metal composite particle, covers the metal composite particle, and contains at least 2 carbon atom layers.

11 . The metal composite powder of claim 10 , wherein the metal composite particle contains Cu and Ni, and a Ni content of the metal composite powder in a region in which the metal composite powder and the multi carbon layer form an interfacial surface is higher than a Ni content at a center of the metal composite powder.

12 . The metal composite powder of claim 10 , wherein the above metal composite particle contains at least 2 selected among Cu, Ni, Al, Fe, Zn, Au, Ag, Co, and Cr.

13 . The method of claim 7 , wherein the metal wire is a Cu wire, the metal layer includes a Ni layer, and a Ni content of the metal composite powder in a region in which the metal composite powder and the multi carbon layer form an interfacial surface is higher than a Ni content at a center of the metal composite powder.

Assignees

• Univ Sungkyunkwan Res & Bus

Inventors

• Seo Su-Jeong
• Song Young-Il
• Park Jung-Kab
• Kim Tae-Yoo
• Son Hwa-Jin
• Shin Jin-Ha
• Lee Jungwoo
• Cho Younglae
• Park Jung-Ho
• Baeg Seung-Bin
• Ahn Byung-Wook
• Yun Sook-Young

Classifications

• B22F1/16

  Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F2302/40

  Carbon, graphite · CPC title

• B22F1/02 Primary

  Operations & Transport · mapped topic

• C25D5/34

  Pretreatment of metallic surfaces to be electroplated · CPC title

• C25D5/48

  After-treatment of electroplated surfaces · CPC title