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Method for connecting carbon nano tube and metal

A carbon nanotube and metal connection technology, used in connection, electrical components, microstructure technology and other directions, can solve the problems of small processing area, complicated operation, weak binding force, etc., to achieve strong binding force, simple method and easy control, equipment cheap effect

Inactive Publication Date: 2013-03-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing chemical modification method for connecting carbon nanotubes to metals has weak bonding force and the method of using focused electron beams to connect carbon nanotubes to metals is complicated in operation, expensive in equipment, and small in processing area. problems, while providing a method for connecting carbon nanotubes to metals

Method used

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specific Embodiment approach 1

[0013] Embodiment 1: The method for connecting carbon nanotubes and metals in this embodiment is carried out according to the following steps: 1. Firstly, the surface to be connected of the substrate is polished to a surface roughness of ≤2 μm, and then the surface to be connected of the substrate is chemically removed. Membrane liquid treatment, followed by cleaning with alcohol or acetone, and finally sputtering the surface of the substrate to be connected with an Ar ion beam of 500eV ~ 5000eV as the sputtering source to obtain a processed substrate, the substrate is Au or a metal substrate with Au deposited on the surface ; 2. According to the concentration of carbon nanotubes at 0.1 μg / mL~5 μg / mL, add carbon nanotubes to deionized water or ethanol, and then ultrasonically treat for 10min~30min to obtain a suspension of carbon nanotubes; 3. The suspension of carbon nanotubes prepared in step 2 is added dropwise on the surface of the substrate treated in step 1 to be connecte...

specific Embodiment approach 2

[0015] Embodiment 2: This embodiment is different from Embodiment 1 in that: in step 1, the surface to be connected of the substrate is sputtered with an Ar ion beam of 700 eV-4500 eV as a sputtering source. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, the surface to be connected of the substrate is sputtered with 2500 eV Ar ion beam as the sputtering source. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for connecting a carbon nano tube and a metal, and relates to a method for macro-connecting a carbon nano tube and a metal material. The invention solves the problems of weak bonding force when a chemical modified method is adopted to connect the carbon nano tube and the metal, and complex operation, expensive equipment and small processing area when focus electron beams are adopted to connect the nano tube and the metal. In the method, suspension of the carbon nano tube is dropwise added on the to-be-connected surface of a treated metallic matrix, and then the metallic matrix is placed on a magnetic field to obtain a metal matrix on which the nano tubes are in directional distribution, and finally the connection of the carbon nano tube and the metal is finished through vacuum diffusion welding. In the method, stable carbide is formed between the carbon nano tube and the metal; the method has strong and permanent bonding force, cheap equipment, large welding area, and simple and easily controlled method, and is convenient for large-scale production; and the invention can be used for connecting carbon nano tubes and other materials in the fields of aviation and aerospace.

Description

technical field [0001] The invention relates to a method for micro-connecting carbon nanotubes and metal materials. Background technique [0002] Carbon nanotubes are seamless, hollow tubes formed by graphene sheets formed by carbon atoms. It is a new carbon structure discovered in 1991. The diameter of carbon nanotubes reaches the nanometer level, and the aspect ratio is very large, which can be regarded as quasi-one-dimensional nanomaterials. Theoretical calculations and experimental studies show that carbon nanotubes have peculiar electromagnetic properties, mechanical properties and chemical properties. They have special electronic energy band structures, wave loss is limited to the axial direction, and quantum effects are very obvious. The study found that single-walled carbon nanotubes could serve as true quantum wires. The carbon-carbon bond in single-layer graphene is one of the strongest chemical bonds in nature, and the structure of carbon nanotubes is just a com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B81C99/00H01R43/02
Inventor 何鹏林铁松杨卫岐
Owner HARBIN INST OF TECH
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