Method of manufacturing metal composite material, metal composite material, method of manufacturing heat dissipating component, and heat dissipating component

Patent metadata

Field	Value
Publication number	US-9920232-B2
Application number	US-201514792093-A
Country	US
Kind code	B2
Filing date	Jul 6, 2015
Priority date	Jan 26, 2011
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A method of manufacturing a metal composite material includes applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder.

First claim

What is claimed is:

1. A method of manufacturing a metal composite material comprising:
an adhesion step of applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder; and
a classification step of classifying and removing powder other than the metal powder to which the carbon material has been adhered after the adhesion step.

2. The method of manufacturing a metal composite material according to claim 1 , further comprising:
a sublimation step of sublimating a portion of metal on the surface of the metal powder after the adhesion step, thereby exposing the adhered carbon material to a portion of the surface of the metal powder.

3. The method of manufacturing a metal composite material according to claim 1 , wherein the mechanical impact force is generated by rotating the carbon material and the metal powder at such a circumferential speed that the carbon material can be pulverized.

4. The method of manufacturing a metal composite material according to claim 1 , wherein the metal powder is a powder of a metal selected from a group consisting of copper, silver, gold, aluminum, and indium, or a powder of an alloy containing at least one of the metals selected from the group.

5. The method of manufacturing a metal composite material according to claim 1 , wherein the carbon material is at least one of members selected from the group consisting of carbon nanotube, graphite, graphene, fullerene, and nanodiamond.

6. A method of manufacturing a heat dissipating component comprising:
an adhesion step of applying a mechanical impact force to a carbon material and a metal powder in such an extent of intensity as capable of pulverizing the carbon material thereby forming a metal composite material, wherein the carbon material is adhered to a surface of the metal powder; and
a sintering step of disposing the metal composite material to a surface or an inner space of a heat dissipating component and heating the heat dissipating component, thereby adhering the metal composite material to the surface or an inner wall surface of the heat dissipating component.

7. The method of manufacturing a heat dissipating component according to claim 6 , further comprising:
a sublimation step of sublimating a portion of metal of a surface of the metal composite material after the adhesion step, thereby exposing the adhered carbon material to a portion of the surface of the metal composite material.

8. The method of manufacturing a heat dissipating component according to claim 6 , wherein the metal powder is a powder of a metal selected from a group consisting of copper, silver, gold, aluminum, and indium, or a powder of an alloy containing at least one of the metals selected from the group.

9. The method of manufacturing a heat dissipating component according to claim 6 , wherein
the carbon material is at least one of members selected from the group consisting of carbon nanotube, graphite, graphene, fullerene, and nanodiamond.

Assignees

• Shinko Electric Ind Co
• Nagano Prefecture

Inventors

• Aoki Syuzo
• Oda Takuya
• Kurosawa Takuya
• Koizumi Shoji
• Takizawa Hidekazu
• Komatsu Yutaka
• Anzawa Shinichi

Classifications

• B22F7/08

  with one or more parts not made from powder {(B22F7/062 takes precedence)} · CPC title

• F28D15/046

  characterised by the material or the construction of the capillary structure · CPC title

• C22C26/00

  Alloys containing diamond {or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes} · CPC title

• B22F9/04

  starting from solid material, e.g. by crushing, grinding or milling ({C22C1/1084 takes precedence}; crushing, grinding or milling, in general, see the relevant subclasses, e.g. B02C) · CPC title

• Y10T428/256

  Heavy metal or aluminum or compound thereof · CPC title