Aluminum matrix composites and method thereof

Patent metadata

Field	Value
Publication number	US-10940672-B2
Application number	US-201916287659-A
Country	US
Kind code	B2
Filing date	Feb 27, 2019
Priority date	Nov 22, 2018
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

A method for forming an aluminum matrix composite is provided. At least one reinforcement layer and an aluminum layer are provided. The at least one reinforcement layer is disposed on at least one surface of the aluminum layer to form a first composite structure. The first composite structure is pressed to form a second composite structure. A process of alternatively folding and pressing the second composite structure is repeated to form the aluminum matrix composite.

First claim

What is claimed is:

1. A method for making an aluminum matrix composite, comprising:
S1: providing at least one reinforcement layer and an aluminum layer;
S2: disposing the at least one reinforcement layer on at least one surface of the aluminum layer to form a first composite structure, wherein the at least one reinforcement layer comprises a metal layer and a carbon nanotube structure, the carbon nanotube structure comprises a plurality of carbon nanotubes connected end to end by van der Waals force and arranged along a same direction;
S3: pressing the first composite structure to form a second composite structure; and
S4: repeating a process of alternatively folding and pressing the second composite structure to form the aluminum matrix composite.

2. The method of claim 1 , further comprising a step of degreasing the at least one reinforcement layer and the aluminum layer before S2.

3. The method of claim 1 , further comprising a step of scraping surfaces of the at least one reinforcement layer and the aluminum layer to expose fresh surfaces of the at least one reinforcement layer and the aluminum layer before S2.

4. The method of claim 1 , wherein a quantity of the at least one reinforcement layer is one, the reinforcement layer is folded into a “∪” shape, and the aluminum layer is placed in a hollow portion of the “∪” shape to form the first composite structure.

5. The method of claim 1 , wherein a thickness of the at least one reinforcement layer ranges from about 0.01 mm to about 10 mm.

6. The method of claim 1 , wherein a quantity of the at least one reinforcement layer is larger than or equal to two.

7. The method of claim 6 , wherein the aluminum layer comprises a first surface and a second surface, the first surface is opposite to the second surface, and the at least one reinforcement layer is respectively disposed on the first surface and the second surface.

8. The method of claim 1 , further comprising a step of cutting an edge of the first composite structure after S2 before S3.

9. The method of claim 1 , wherein a thickness of the second composite structure is less than or equal to 70% of a thickness of the first composite structure in S3.

10. The method of claim 1 , wherein a thickness of the second composite structure after pressing decreases to less than 70% of a thickness of the second composite structure after folding in S4.

11. The method of claim 1 , wherein the process of alternatively folding and pressing the second composite structure is repeated more than two times.

12. The method of claim 1 , wherein a material of the metal layer is copper, magnesium, zinc, or nickel.

13. A method for making an aluminum matrix composite, comprising:
S1: providing at least one reinforcement layer and an aluminum layer;
S2: disposing the at least one reinforcement layer on at least one surface of the aluminum layer to form a first composite structure, wherein the at least one reinforcement layer comprises a metal layer and grapheme;
S3: pressing the first composite structure to form a second composite structure; and
S4: repeating a process of alternatively folding and pressing the second composite structure to form the aluminum matrix composite.

Assignees

• Univ Tsinghua
• Hon Hai Prec Ind Co Ltd

Inventors

• Liu Yuan-Feng
• Hou Ze-Cheng
• Chen Lu
• Zhu Lin
• Li Wen-Zhen

Classifications

• C22C21/00

  Alloys based on aluminium · CPC title

• B32B15/017 Primary

  one layer being formed of aluminium or an aluminium alloy, another layer being formed of an alloy based on a non ferrous metal other than aluminium · CPC title

• B32B2311/24

  Aluminium · CPC title

• Y10T428/12764

  Next to Al-base component · CPC title

• B32B38/0012

  Mechanical treatment, e.g. roughening, deforming, stretching · CPC title